2019.02.05 17:52 emslo Cervical Cancer
2023.06.07 07:47 sultan_of_swing Pay off mortgage or alternative
2023.06.07 07:44 Opposite-Bullfrog-57 If privte cities are improvement why not try this?
2023.06.07 07:39 JackWallner2 Photolithography Equipment Market expected to reach 18.0 Bn, at a CAGR of 9.1%
2023.06.07 07:32 autotldr Florida man (not that one) sold $100M-plus in counterfeit network gear / Military, schools, and hospitals burned by off-brand Cisco inferno
A 39-year-old Florida man pleaded guilty Tuesday to selling hundreds of millions of dollars of counterfeit Cisco gear to unsuspecting schools, hospitals, government agencies, and the military.
According to the US Justice Department, between 2013 and 2022 Onur Aksoy, based in Miami, founded at least 19 companies in New Jersey and Florida and launched 15 Amazon and 10 eBay storefronts from which he peddled "Tens of thousands" of low-quality or faulty networking devices gussied up to look like new or official Cisco equipment.
The goods, imported from sellers in China and Hong Kong, were often loaded with pirated Cisco software and packaged within Cisco boxes bearing Cisco labels and stickers.
Aksoy's activities drew the attention of the Customs and Border Protection agency, which reportedly seized 180 shipments of counterfeit goods shipped to companies owned by Aksoy between 2014 and 2022.
Despite pressure from CBP and Cisco's lawyers, the Justice Department claims Aksoy did little to hide his activities and continued to import and then fraudulently sell counterfeit network equipment sourced from the same suppliers.
It wasn't until last June that Aksoy was arrested and charged - on one count of conspiracy to traffic in counterfeit goods and to commit mail and wire fraud, three counts of mail fraud, four counts of wire fraud, and three counts of trafficking in counterfeit goods.
2023.06.07 07:30 ny48 Advice on students loans for a risen senior
2023.06.07 07:28 Outside333 % of your overall portfolio in AS
2023.06.07 07:24 Individual_Care7072 Are you interested in finding a reliable source of clean and safe drinking water for your home or business?
2023.06.07 07:17 Adblinds Smart Curtains - Transforming Your Home with Intelligent Window Treatments
Smart Curtainsubmitted by Adblinds to u/Adblinds [link] [comments]
Smart Curtains - Transforming Your Home with Intelligent Window TreatmentsIn today's rapidly evolving world of technology, smart home innovations have become increasingly popular. From voice-controlled assistants to automated security systems, homeowners are embracing the convenience and efficiency that these advancements bring. One area where technology has made significant strides is in window treatments, with the introduction of smart curtains.
In this article, we will explore the concept of smart curtains, their features and benefits, and how they can transform your home.
Understanding Smart CurtainsSmart curtains, also known as motorized curtains or automated window treatments, are an intelligent solution that allows you to control the opening and closing of your curtains with the touch of a button or a simple voice command. These curtains are equipped with motors and automation technology that eliminate the need for manual operation.
Advantages of Smart Curtains
Factors to Consider When Choosing Smart CurtainsWhen selecting smart curtains for your home, several factors should be taken into account:
Installation and Maintenance Tips for Smart CurtainsInstalling and maintaining smart curtains is relatively straightforward. Here are some tips to guide you through the process:
By following these installation and maintenance tips, you can enjoy the convenience and benefits of smart curtains while ensuring their longevity and smooth operation in your home.
2023.06.07 07:16 Acrel-electric Application of power management system in transformer distribution system Renovation project of Inner Mongolia Meng Niu Dairy (Group) Co., Ltd.
摘要：本文介绍蒙牛乳业（当阳）有限公司低压系统改造电力监控系统，采用智能电力仪表、采集配电现场的各种电参量和开关信号。系统采用现场就地组网的方式，组网后远传至后台，通过Acrel-2000型电力监控系统实现配电室配电回路用电的实时监控和管理。submitted by Acrel-electric to u/Acrel-electric [link] [comments]
Abstract: This article introduces the low-voltage system of Inner Mongolia Meng Niu Dairy (Group) Co., Ltd. to transform the power monitoring system, using smart power meters to collect various electrical parameters and switching signals at the distribution site. The system adopts the method of on-site networking. After networking, it is remotely transmitted to the background. The Acrel-2000 power monitoring system realizes real-time monitoring and management of power distribution circuit power in the distribution room.
0 概述 Overview
With the development of social economy, the improvement of production automation, the liberation of labor and the improvement of quality of life, a large number of electric power-driven equipment is put into production and life, and people's dependence on electricity is getting higher and higher. The reliability and continuity of power supply have become one of the important issues of concern to the entire society. Since the power supply system has the particularity of simultaneous production and consumption, monitoring the entire power supply process is an important means to ensure the reliability and continuity of power supply.
Inner Mongolia Meng Niu Dairy (Group) Co., Ltd. is located in Dangyang City, Hubei Province. There is a power distribution room on site.
This project mainly involves network multi-function meters, microcomputer protection and other equipment in the power distribution room of Inner Mongolia Meng Niu Dairy (Group) Co., Ltd. The monitoring host is located in the duty room on the first floor.
1 需求分析 Demand analysis
To ensure the statistics and analysis of electricity load for production management and real-time monitoring of dangerous sources. Real-time online monitoring of voltage, current, power and other parameters in the power distribution room at the project site is required. Once the monitoring point is monitored with abnormal parameters, it can detect and alarm in time, and relevant personnel can take necessary measures to avoid safety accidents. The automatic meter reading function saves manpower and material resources, and the power trend curve function can intuitively display the working status and time of each circuit, which is convenient for users to find abnormal power circuits and rectify them in time, and establish a multi-level electric energy measurement system to provide energy analysis basis .
2 系统方案 Structure
Acrel-2000 system is based on the actual situation of the low-voltage system of Inner Mongolia Meng Niu Dairy (Group) Co., Ltd. to transform the power monitoring system on site. The overall network structure uses shielded twisted pair to directly connect to the data collector and then send the data to the power distribution room for monitoring The host ensures the stability and real-time transmission of the power monitoring system.
1）站控管理层 Control Centre
The control centre is the direct window of human-computer interaction for the management personnel of the power monitoring system. In Inner Mongolia Meng Niu Dairy (Group) Co., Ltd. low-voltage system transformation power monitoring system project, it mainly refers to the monitoring host located in the power distribution room on the first floor.
The network is mainly composed of collectors, Ethernet devices and bus networks. The main function of the serial server is to monitor on-site intelligent instruments; the main function of Ethernet equipment and bus network is to realize the data interaction between the substation and the main station, so that the management of the distribution system is centralized, informatized, and intelligent, which greatly improves The safety, reliability and stability of the power distribution system have achieved the goal of unattended operation.
The device layer is the data acquisition terminal, which is mainly composed of smart meters. The smart meters are connected to the communication server through the shielded twisted pair RS485 interface and the MODBUS communication protocol bus connection. The communication server reaches the monitoring host of the power distribution room for networking. Realize remote control.
系统结构图 System structure diagram
3 系统功能 System Function
The real-time monitoring system diagram of the substation is the main monitoring screen, which mainly monitors the operating status of all circuits in the substation in real time. Red represents closing and green represents opening. In the system diagram, you can intuitively see the operating parameters and status of each incoming and outgoing line, and you can see all the conventional power parameters on the outlet side of the transformer, such as: three-phase voltage, current, active power, reactive power, and power factor , Frequency, active power, etc. As shown below:
系统图 system diagram
The remote signaling and remote measurement alarm function mainly completes the monitoring of the switch operation status of the low-voltage outlet circuits and the load incoming line. The pop-up alarm interface for switch displacement and load limit violations indicates the specific alarm location and sounds the alarm to remind the duty personnel to deal with it in time. The load limit can be set freely under the corresponding authority.
The event alarm recording function mainly completes the recording of the alarm information and the occurrence time of the alarm information that occurred during the query period, and provides the basis for the duty personnel and analyzes the cause of the accident, as shown in the following figure:
报警功能实时查询Alarm function real-time query
Parameter meter reading function, mainly to query the electrical parameters of the low-voltage outgoing circuit. Supports electrical parameter query at any time, with functions such as data export and report printing. This report queries the electrical parameters of the low-voltage circuits in and out of the power distribution room of the low-voltage system of Inner Mongolia Meng Niu Dairy (Group) Co., Ltd., which mainly includes three-phase current, active power and active power. Each circuit name of this report is associated with the database, which is convenient for users to modify the circuit name. As shown below:
电参数抄表Electric parameter meter reading
Power consumption report function, select the time period for query, support the cumulative query of the power consumption at any time period, and have the functions of data export and report printing. Provide accurate and reliable electric energy report for the staff on duty. Each circuit name of this report is associated with the database, which is convenient for users to modify the circuit name. As shown in the figure below, the user can print the report directly, and save it to another location in EXCEL format. As shown below:
A schematic diagram of the system communication structure, which mainly shows the network structure of the system. The system adopts a hierarchical distributed structure and monitors the communication status of the bay layer equipment. Red means communication is normal, green means communication failure. The figure below is a schematic diagram of the communication status of the
通讯结构示意图Communication structure diagram
In the application of today’s power distribution facilities, the power distribution safety of the project is very important. The application of the Acrel-2000 power monitoring system introduced in this article in Inner Mongolia Meng Niu Dairy (Group) Co., Ltd. can realize The real-time monitoring of power consumption can not only display the power consumption status of the loop, but also has the function of network communication, which can form a power monitoring system with serial server, computer, etc. The system realizes the analysis and processing of the collected data, real-time display of the operation status of the distribution circuits in the distribution room, pop-up alarm dialogs, voice prompts for load exceeding limits, and generates various electric energy reports, analysis curves, graphics, etc., which is convenient The remote meter reading, analysis and research of electric energy show that the system is safe, reliable and stable. It provides a true and reliable basis for the commercial plaza project to solve the electricity problem and has achieved good corporate benefits.
1.Solutions For Enterprise Micro-grid System 2020.02
2023.06.07 07:13 Game-me-up-Scotty Finished My First Playthrough: Perspective of a Teacher
2023.06.07 07:05 Sphinta Posted by Focca. Just to preserve it.
2023.06.07 07:02 godefroi01 Iseki Autoportée: Efficient and Reliable Tondeuse for All Your Lawn Care Needs
Maintaining a well-groomed lawn requires the right tools, and when it comes to mowing large areas with ease and efficiency, the Iseki Autoportée stands out as a top choice. This powerful and reliable tondeuse (mower) is designed to tackle even the most demanding lawn care tasks, providing homeowners and professionals alike with a seamless and enjoyable mowing experience. In this blog, we will explore the features and benefits of the Iseki Autoportée, highlighting why it should be your go-to solution for all your lawn care needs.submitted by godefroi01 to u/godefroi01 [link] [comments]
Unparalleled Efficiency:One of the key advantages of the Iseki Autoportée is its exceptional efficiency. Equipped with a robust engine and cutting-edge technology, this tondeuse ensures quick and effortless mowing. Its wide cutting deck allows for a larger cutting path, reducing the number of passes required to cover your entire lawn. Whether you have a sprawling estate or a compact yard, the Iseki Autoportée enables you to complete the task in a fraction of the time, leaving you with more leisure time to enjoy your well-manicured lawn.
Versatility and Adaptability:The Tondeuse Iseki Autoportée is designed to adapt to various terrains and mowing conditions. With adjustable cutting heights, you can easily customize the mower to achieve the desired grass length, whether it's a neatly trimmed golf course-like finish or a slightly longer cut for a more natural look. Additionally, this tondeuse effortlessly handles both flat surfaces and uneven terrain, thanks to its robust build and superior traction. It effortlessly glides over bumps, inclines, and even rough patches, ensuring consistent and precise cutting results throughout your entire lawn.
Enhanced User Experience:When it comes to comfort and ease of use, the Debroussailleuse AS MOTOR excels. Its ergonomic design includes a comfortable seat with adjustable features, allowing you to find the perfect position for a pleasant mowing experience. The intuitive controls are conveniently placed, ensuring effortless maneuverability and control over the tondeuse. Furthermore, the machine's low noise and vibration levels contribute to reduced operator fatigue, making mowing sessions less tiring and more enjoyable.
Durability and Reliability:Investing in a Tondeuse Autoportee Husqvarna that can withstand the test of time is crucial, and the Iseki Autoportée delivers in this aspect as well. Built with high-quality materials and engineering excellence, this tondeuse is designed for durability and reliability. Its sturdy construction and powerful engine ensure consistent performance, even under heavy use. With proper maintenance and care, the Iseki Autoportée will continue to provide excellent mowing results season after season.
Safety Features:Lawn care should always prioritize safety, and the Iseki Autoportée comes equipped with various safety features to ensure worry-free operation. From easily accessible emergency shut-off switches to automatic blade disengagement when reversing, this tondeuse puts safety first. These features provide peace of mind, particularly in households with children or pets, as they minimize the risk of accidents during mowing sessions.
Final Words: For efficient, reliable, and enjoyable lawn care, the Iseki Autoportée proves to be a top-notch choice. With its exceptional efficiency, versatility, comfort, durability, and safety features, this tondeuse stands out as a trusted companion for homeowners and professionals seeking superior mowing results. Say goodbye to labor-intensive mowing and embrace the ease and convenience of the Iseki Auto.
Iseki Autoportée: Efficient and Reliable Tondeuse for All Your Lawn Care Needs
2023.06.07 07:01 4ShotBot My Roommate is Slenderman: Finale/Epilogue
2023.06.07 07:00 RedDeadMods /r/RedDeadOnline Simple Questions & FAQ Thread.
Yes, you can play with friends on PC regardless of what store they bought it from. Even Steam GTA, uses Rockstar to launch the game.Q) Can we transfer our characters from PS4 and Xbox One to PC?
No, you cannot transfer characters to a different platform, e.g Xbox to PC. The game is cross-gen however, so if you play PS4 you can continue on PS5.Q) If I buy a next-gen console, can I play with friends on old-gen consoles?
Yes! The game is backwards compatible on console, so you can play with friends on PS4/PS5 or XB1/XBXQ) If I already own Red Dead Redemption 2, do I need to buy Red Dead Online again when it goes standalone?
No! Red Dead Online is still part of the RDR2 game.
Cash, the main currency in RDO that is earned through almost every activity.Q) What is the Outlaw pass?
Gold Bars, the premium currency in RDO that can be purchased using real money. You earn a small amount of gold for completing activities online.
Role Tokens, earned by levelling up in each role, used to unlock abilities & items for the five current roles.
The Outlaw Pass is an in-game purchase using the premium Gold currency that allows you to earn items/rewards as you level up.Q) What are Daily Challenges?
Outlaw Pass are only available for a limited time and once they finish, you can't access them again.
Every day at 6am UTC, you are given a new list of 7 daily challenges as well as 15 role daily challenges. They can range from hunting specific animals or finding certain herbs, to completing PVP/Freeroam events.Q) What are Free-roam events (role/normal)
Initially, you earn 0.1 Gold per completed challenge plus a bonus if you complete all 7 regular challenges.
After completing at least 1 challenge per day for 7 days, you then earn a little more gold per challenge each week before your daily challenge streak resets after 28 days.
Your daily challenge streak will then reset, and you start the process again.
In addition to this, there are also 3 daily challenges for each role available and you can do a max of 9 role daily challenges. Daily challenges for roles will also differ depending on your rank within each role.
Every 45 minutes, you'll receive an invite to a free-roam event. Free-roam events can be activities such as fishing, horse racing, archery competitions, or PVP. You earn XP + cash for completing.Q) What are ability cards?
There are also role specific events that happen every 90 minutes, you need to be ranked up and enrolled in each role before you'll see invites for these activities.
You can see the schedule for free-roam & role events here
Abilities in Red Dead Online are assigned to a character through Ability Cards. These are divided into two different types. Dead Eye cards that grant abilities only active during Dead Eye, while Passive cards add abilities that are always active, no matter what you do. Passive abilities are further divided into several different categories.Q) What are the playing styles online?
In Red Dead Online, it's not possible to assign all of the available abilities to the character, as there are only 4 slots available. One slot is used for a single Dead Eye card, while the remaining three slots are used for Passive abilities. Source.
Defensive: Players in Defensive mode will be indicated by a shield icon, will take reduced damage from enemy players, cannot be lassoed, melee attacked, executed or targeted with auto-aim. Defensive players will also be excluded from being targeted in PvP-related missions such as Player Assassination. Those who attack Defensive players receive hefty penalties via the Hostility system, while players who initiate conflict while in Defensive mode will be instantly pulled out of Defensive mode and also receive similar Hostility penalties.
Offensive: The Offensive playing style is set as the default and is how most players traditionally interact in Free Roam – free to engage in hostile contact with other players if you are prepared to accept the potential consequences.
At rank 25, you can buy an off-hand holster which allows you to equip a second handgun.Q) How do I change appearance
Press Left on the D Pad (Keyboard TBC) to bring the Online menu up > Scroll down to Online Options > Scroll down to Change AppearanceQ) How do I setup camp
Press Left on the D Pad (Keyboard TBC) to bring the Online menu up > Scroll down to camp options > Choose location for campQ) Where is the gun locker?
Camps can be used to access wardrobes, collect items you've ordered via the catalog, craft & cook and fast travel if upgraded.
A small camp is suitable for 1-4 posse members and costs $1 per in game day. A large camp is suitable for 1-7 posse members and costs $2 per in game day.
You unlock it through the trader role, then purchase it at Wilderness Outfitters in camp, and then it appears at your specific tent in camp.Q) How do I buy a dog?
At your camp, head to Cripps and access Wilderness Outfitters, from there you can select the dog option.Q) What can dogs be used for?
Looking cool at your camp and warning you of camp raids when you unlock the perk. Not really much else. (They're not companions like Dogmeat from Fallout 4)Q) I saw an item, but can't find it on PC or Xbox One.
Some items are exclusive to PS4, so you may see things promoted by Rockstar that aren't yet available on your platform or it may be from an old Outlaw Pass.Q) What is the best Horse
This post should help.Q) What are the best Weapons
Captain Balrick's arsenal should help you decideQ) What is the best ability card loadout
This post in the /RedDeadOnline mega-guide should help.Q) What is the best way to make money/gold
This post should help.Q) Where are the treasure maps located?
You can find them all here.
Yes! You can play in all roles concurrently.
Get started as a Bounty Hunter when you meet the Legendary Bounty Hunter in Rhodes and purchase the Bounty Hunter License. The standard cost is 15 Gold Bars.Q) What are legendary bounties?
Licensed Bounty Hunters can pick up work by visiting bounty boards located near law offices, post offices and train stations across the states. There is no shortage of criminals to be dealt with and the targets range in difficulty, from lone low-level petty thieves to notorious outlaws with armed protection details and a watchful eye. Taking on an armed gang or bringing multiple targets to justice is made easier with the help of a Posse, who will all earn a cut of the final bounty. And keep in mind, bringing in targets alive will yield a greater reward.
Reaching Bounty Hunter Rank 12 will open up the opportunity to take down other players with high bounties of $20 or more. Bounty Hunters will be notified through an invite about the opportunity to hunt down the wanted player when they’re nearby in a structured pursuit. The wanted player must escape (or surrender) within the allotted time and if captured, they’ll also have opportunities to escape and flee. If the Bounty Hunter brings the target in alive, they’ll receive an award while the criminal serves time.
Legendary bounties are high-tier bounties, they usually involve a mini-story/cut scene. They're also much tougher than a regular bounty.
There are 10 legendary bounties that can be access as part of the Bounty Hunter role and 3 that can be accessed (when they've all released) by purchasing the Prestigious Bounty Hunter upgrade.
our trusted camp companion, Cripps, has long dreamed of starting a trading outpost and you’re going to help him make it happen - by becoming a partner in the fledgling Cripps Trading Company. Combining Cripps’ lifetime of working with animal materials and your skills at hunting and frontier security, you’ll have the perfect ingredients to develop a thriving business.Q) Can I skip the medium wagon?
Once you agree to help Cripps, you can start turning your camp into a business by sourcing items for Cripps to convert into sellable goods. An investment of 15 Gold Bars to purchase a Butcher’s Table will get your business up and running.
Once you’re operational, you’ll provide Cripps with Materials through hunting animals – pristine pelts and carcasses will provide better yields. You’ll also take on Resupply Missions to acquire additional necessities through less than savory tactics. Once supplied, Cripps will begin turning the materials into sellable goods, which can then be sent out on low-risk local deliveries for payment or across greater distances for a premium.
Improve your hunting yields with a Hunting Wagon for larger hauls or upgrade your Delivery Wagons for larger sales. As business flourishes and your presence becomes known in the market, your competition may grow jealous of your success, so keep an eye out for raids on your camp. As your trade grows, you might consider purchasing a camp dog from Wilderness Outfitters. Not only are dogs great camp companions for all players, but a Trader of sufficient rank can teach their dog to warn of incoming attacks.
No, you need to buy the medium wagon, then the large wagon.Q) What can I sell to Cripps?
You can sell carcasses & small animals (e.g squirrels). Along with some animal parts, e.g feathers.Q) How long does it take Cripps to make goods after resupplying?
Cripps does not accept meat, fish or skinned carcasses.
Cripps requires materials and supplies to produce goods. You give him materials by donating carcasses and pelts. He uses two units of materials to produce one good. You either buy supplies or obtain them through resupply missions. Either way, that gives enough supplies to produce 25 goods. As long as both materials and supplies are available, Cripps produces 1 good every 2 minutes (1 in-game hour).
Seek out the mysterious travelling saleswoman Madam Nazar to acquire the Collector’s Bag and get started on the path of the Collector. It will cost 15 Gold Bars for access to collecting and selling rare items.Q) Where is Madam Nazar?
With Madam Nazar’s help, you will be able to explore the world finding valuable treasures, whether they’re discarded Tarot cards in abandoned camps, buried treasures unearthed with your trusty shovel, hidden family heirlooms and more.
Collect individual pieces and sell them off directly to Madam Nazar or collect entire sets for even more valuable sales. As you progress, you’ll unlock enhanced searching skills; more useful tools like a metal detector; benefits like increased carrying capacities; the ability for your horse to directly pluck and pass herbs to you while mounted, and more.
Madam Nazar can be located by completing a map/collection for her. Her location is posted daily on /RedDeadDailies - She changes location at 6am UTC time each day.Q) Who is Madam Nazar?
You can also find her using https://madamnazar.io/
Madam Nazar is the Collector role vendor, you can obtain maps, cosmetics & other items such as the shovel from her.Q) Why is Madam Nazar?
...Q) Where do you buy a shovel?
From Madam Nazar, it costs $350. If you need help finding her, check /RedDeadDailiesQ) Where do you buy a metal detector?
From Madam Nazar, it unlocks at level 5 and costs $700. If you need help finding her, check /RedDeadDailiesQ) Can you sell collector items individually or does it need to be a full set?
Yes, however you get far less money than you would if you sold a full collectionQ) Can you only have one collector map active?
Yes, if you try to open a second map, it may auto-close and almost looks like a bug, however, you should only try and activate one at any given time.
In the options menu (left on the D-pad, or L on PC), select "Camp & Properties" → "Moonshine Shack" → "Shack Location".Will be expanded upon soon...
2023.06.07 06:56 Acrel-electric Application of energy management system in bio-pharmaceutical industry
摘要：根据生物制品类企业的电力能源使用特点，制定了符合公司实际情况的能源管理系统，介绍了该系统的架构及其在企业的应用情况，提升了公司能源数据的实时监控能力，优化了公司能源分配，降低了公司电力能源消耗，有针对性地解决了公司生产活动中的能源损耗问题。submitted by Acrel-electric to u/Acrel-electric [link] [comments]
Abstract: according to the electric energy use characteristics of biological products companies, has established accord with the actual situation of the company energy management system, this paper introduces the architecture of the system and its application in enterprises, improve the company's energy data real-time monitoring ability, optimizing the allocation of the company's energy, electric energy consumption, reduce the company targeted to solve the problem of the energy loss in the company's production activities.
Key words: Energy management;Data analysis;Electric energy metering;Energy conservation and emissions reduction
Energy is an important material material to promote the development of human economy. Scientific and effective measurement and monitoring of energy resources plays a key role in the quality of products produced by biological enterprises. Biopharmaceutical companies require equipment to work continuously when producing products, and continuous energy supply is the basic requirement to achieve this condition.According to the characteristics of production and operation, enterprises should strengthen energy supervision and formulate a reasonable energy management system, which can not only improve production efficiency, but also reduce production costs, so that enterprises can have stronger competitiveness in the market.
Brief introduction of enterprise electric energy consumption
Biomedicine industry is a high-tech industry with high technology content, high investment, high income and high risk. Its high technology is not only reflected in the high standards and strict requirements of product quality, but also reflected in the high requirements of production equipment and production environment. Long r&d cycles and high upfront costs have led to large investments in clean plants and other public energy system facilities that meet GMP requirements and biological product standards.
According to our company's annual main energy consumption statistics, the total energy consumption is about 20,000 tons of standard coal.According to the investigation and analysis, the energy system operates with load all year round, and the energy consumption changes periodically with season and time. In summer and winter, the energy consumption is large, while in spring and autumn, the energy consumption is small.The energy consumption is large in the day and small at night, and the energy operation is unbalanced.
Architecture of the Electric Energy Management System
Energy management system is a real-time management system integrating energy measurement, data transmission and analysis.Relying on wired network communication, it can realize real-time monitoring of enterprise power system, comprehensive statistical analysis of energy consumption, cost allocation, and analysis of advanced characteristics of energy-consuming load equipment, so as to realize optimal allocation of energy and achieve better energy conservation and emission reduction.
The enterprise energy management system consists of online monitoring data acquisition system, energy data transmission system, energy operation supervision system, energy efficiency analysis and management system, etc.
2.1 电力能源管理系统功能Power energy management system functions
The energy management system is mainly composed of energy supervision, monitoring and energy information platform. The energy management platform consists of server, database, intelligent data collector and front-end machine.Energy monitoring system is a processing platform for collecting, counting and analyzing energy consumption data.Energy information platform is a collection layer network platform composed of terminal energy consumption meters.
2.2 电力能源采集方式Electric energy collection method
With the gradual improvement of the first, second and third level energy metering equipment of our company, there are higher requirements on the effectiveness and accuracy of energy source data, and the manual meter reading method can no longer meet the above requirements.In order to realize real-time and accurate data management, it is necessary to replace traditional manual operation with intelligent acquisition equipment with advanced technology, high precision and good reliability.
The power supply nature of our company is the load enterprise, the central distribution room is the double circuit power supply.The workshop adopts electronic power meter to measure the electric energy, which can provide the basic measurement data of three-phase voltage, current and power with high precision, and has multiple functions such as compound rate calculation, demand calculation, harmonic calculation and so on.Modular design for easy function expansion and large screen display for easy data reading.According to the number of electricity meters assembled, the workshop chooses intelligent data collector with port 16, port 8 and port 4 to meet the requirements.As a bridge between metering equipment and control host, the collector's protocol conversion function can replace the preprocessor to select different acquisition protocols, collect real-time data of various intelligent equipment, and realize information summary and processing.
2.3 网络通信功能Network communication function
The energy monitoring system adopts bus, RS485 communication line, ethernet line, optical fiber and other communication modes. The system is compatible with other communication devices, and displays the running status and online running parameters of the energy system by monitoring the large screen.According to the energy monitoring requirements related to the project, each energy subsystem diagram can be modified and configured according to the requirements or actual operating conditions, and the system will reflect the operation parameters in real time according to the modified conditions.
3 电力能源管理系统应用Application of electric energy management system
The power energy management system releases energy data to the company's LOCAL area network. Specific indicators include real-time monitoring, statistical reporting, analysis and comparison, accident alarm, target management, energy conservation assessment, etc.Managers and technicians can read the relevant data under the appropriate authority.The platform can fully reflect a variety of functions, interface clear, easy to understand, easy to understand.
3.1 能源管理系统功能Energy management system functions
3.1.1 电能数据采集 Power data acquisition
（3）数据自动采集间隔不超过1 min，数据存储间隔可根据实际需求进行灵活设置，存储间隔支持5 min。
(1) There are two ways of energy consumption data collection: intelligent equipment collection and manual meter reading.The collector can save the historical data of 15 ~ 30 days independently to prevent the replacement of data after network interruption and recovery.
(2) Automatic collection of intelligent instrument data support RS485, M-BUS or Ethernet standard interface and standard MODBUS, DLT-645, CJT-188 and other communication protocols, for the use of non-standard protocol instrument support communication interface program development, to ensure the normal data collection.
(3) The interval of automatic data collection is no more than 1 min. The data storage interval can be flexibly set according to actual requirements. The storage interval supports 5 min.
(4) Main acquisition parameters include three-phase voltage, three-phase current, active power, reactive power, power factor, electric degree, etc.
3.1.2 电能数据报表Power data report
(1) The system provides daily, weekly, monthly, quarterly and annual reports of energy consumption statistics in fixed formats such as classification, itemization and subdivision.
(2) The system supports the creation of new energy consumption statistics that meet the actual management needs of managers.
(3) All reports support manual generation and regular automatic generation and mail distribution.
(4) All system reports can support office automation software(Excel).
3.1.3 设备信息管理Equipment information management
(1) Metering instrument information management.It can flexibly define the energy use attribute and ownership relationship of measuring instruments at each collection point, and the system can automatically complete the corresponding energy consumption data statistics according to the instrument attributes.Visual monitoring of on-line status of metering instruments, and the realization of instrument fault alarm;Conduct integrity statistics of instrument data, evaluate the validity of data in case of missing data, and remind operators to check and maintain;Supports remote query and setting of internal parameters of the instrument, including instrument address, communication rate, wiring mode, CT variable ratio, PT variable ratio, etc.
(2) Energy equipment information management.The system can realize the classified management of equipment according to the attribute of equipment energy use.Can monitor the running state and key parameters of energy-using equipment, establish equipment asset management and maintenance management files;Manage the historical maintenance record and maintenance plan of the equipment online to make the production process safe and stable.
3.1.4 系统安全管理System safety management
(1) User management.The system can create and delete users as needed, allowing administrators to be responsible for managing users within a group.
(2) Authority management.The system login needs to be verified by user password and permission, and all operational events are recorded. It supports hierarchical authorization mechanism, and personnel with different administrative authority can access hierarchically according to system Settings.
(3) Log management.The system records/queries the user's various operations, alarm information, etc., and records/queries the error and diagnostic log information in its own operation process.
3.2 能源消耗分析与管理Energy consumption analysis and management
According to the drug production quality management standard of bio-pharmaceutical enterprises, the energy needed for production shall be managed.Energy platform based on analysis of the data of the energy in the process of enterprise production cost allocation, promotes each production workshop to improve production technology and promote the upgrading of energy-consuming equipment, realize the departments of energy consumption and production workshop benchmarking, scientific and accurate definition and analysis of the energy consumption cost of each department team, convenient financial data calculation, the energy cost allocation to each department, analysis of energy consumption departments, analyze the effect of energy consumption cost based data maintenance, etc.
4 安科瑞工业能耗管理平台介绍Introduction of Acrel industrial energy consumption management platform
4.1 平台架构介绍Platform Architecture Introduction
Acrel energy management and control system adopts the layered and distributed network structure, which has good reliability and real-time performance. It is mainly composed of three parts: the field equipment layer (energy metering terminal), the communication management layer (communication management terminal) and the main station layer (energy monitoring platform).
The above three parts run through the whole structure of the system respectively.The overall design structure of the energy management system is designed according to the basic structure of energy management. While meeting the above three parts, part of the analysis, monitoring, decision-making and release platform is added.
FIG. 4 Architecture composition of industrial energy consumption management platform
4.2 平台功能介绍 Platform function introduction
FIG. 5 Function diagram of industrial energy consumption management
4.2.1可视化展示 Visual presentation
Display the total amount of energy consumption, discount value, energy cost, energy consumption trend, proportion of energy consumption by item, regional energy consumption comparison, as well as current weather conditions and pollution situation, and display the energy consumption dynamics of important processes or sections of the enterprise in three dimensions.
4.2.2实时监控 Real-time monitoring
Real-time monitoring of energy use and alarm at each point of the enterprise.In this way, enterprise users can monitor the operation of each point in real time and grasp the alarm of the point more quickly.
4.2.3用能统计 Energy consumption statistical
From the types of energy use, monitoring area, production process/section time, disciplines such as dimension, use curve, pie charts, histograms, cumulative figure, digital table can use statistics, year-on-year, from analysis of the enterprise, the contrast, find out loopholes in the process of using energy and unreasonable place, so as to adjust the energy allocation strategy, reduce energy waste in the process of use.
4.2.4单耗统计Single consumption statistics
Docking with enterprise MES system, through product output and energy consumption data collected by the system, the trend chart of product consumption per unit was generated in the product consumption, and the year-on-year and sequential analysis was carried out.So that the enterprise can adjust the production process according to the product consumption, thus reducing energy consumption.
The use, consumption and conversion of various types of energy are compared and assessed by KPI according to the performance indicators formulated by energy plan or quota, including day, week, month, year and designated period according to shift group, region, production line and section, so as to help enterprises understand the internal energy efficiency level and energy saving potential.
4.2.6能耗预测Energy consumption prediction
By analyzing the energy consumption of the production process and production equipment of the enterprise, the calculation model of energy consumption is established, the data and model are modified according to the artificial intelligence algorithm, and the future trend of energy consumption of the enterprise is predicted and analyzed, so as to provide an effective decision basis for energy conservation.
The system collects data on the energy consumption of the region, section and equipment, monitors the operation status of the equipment and process, such as temperature, humidity, flow, pressure, speed, etc., and supports the one-time operation monitoring of the transformer and distribution system.It can browse the managed energy consumption data directly from the dynamic monitoring plan, and can query the relevant energy consumption by energy type, workshop, section, time and other dimensions.
Year, month, day of enterprise energy utilization, line loss situation, the equipment running status, operational conditions, such as statistical analysis, let users understand the operation of system, and provide data for the user base, and easy to find equipment is unusual, to find out the improvement points, and can use of mining and energy saving potential.
4.2.9移动端支持Mobile terminal support
The APP supports Android and IOS operating systems, making it easy for users to grasp the enterprise's energy consumption, efficiency analysis, quarter-on-quarter analysis, energy consumption folding, energy use prediction, operation monitoring, abnormal alarm, etc. according to different dimensions such as energy classification, region, workshop, process, team, equipment, etc.
4.3工业能耗平台设备选型Equipment selection for industrial energy consumption platform
Measurement of three-phase electrical parameters U,I,P,Q,S,PF,F, sub-item positive and reactive power statistics, total positive and negative active and reactive power statistics, infrared communication, current specifications, access through the transformer 3*1 (6) A, direct access to 3*10 (80) A, active power accuracy class 0.5s, reactive power accuracy class 2
Three-phase electrical parameters U,I,P,Q,S,PF,F measurement, total positive and negative active power, reactive power measurement, 2-31 total harmonic content analysis, sub-harmonic and fundamental wave electrical parameters(voltage, current, power) measurement, support payment rate, historical power records, support RS485 communication, 470MHz wireless communication, infrared communication, active power accuracy class 0.5S, reactive poweraccuracy class 2.
三相（I，U，kw，kvar，kwh，kvarh，Hz，cosφ）零序电流In；四象限能量；实时和最大需求； 这是最后一个月的极值；电流和电压不平衡，加载当前条形图显示；66种报警类型和外部事件记录（SOE），支持micro SD卡记录；2DI + 2DO；RS485/Modbus；LED显示屏
Three phase (I, U, kw, kvar, kwh, kvarh, Hz, cosφ) zero sequence current In; four-quadrant energy; real-time and max requirements; this and last months' extremum; current and voltage unbalcancedness; load current bar chart display; 66 alarm types and external event record(SOE), support micro SD card record; 2DI+2DO; RS485/Modbus; LED display
Three-phase (I,U, KW, KVAR, KWH, KVARH, HZ) single-loop residual current monitoring, 4-channel temperature monitoring, 1-channel relay output, 4-channel switch input, event recording, built-in clock, dot-matrix LCD display, 1-channel RS485/Modbus communication, optional 2G/4G/NB communication
Table 1 Industrial energy consumption management equipment selection table
The use and development of the company's energy management system can make up for the shortcomings of bio-pharmaceutical enterprises in energy management, and the application of digital energy information can facilitate managers to read the enterprise's energy consumption directly.Compared with the previous manual meter reading method, the automatic, real-time and intelligent energy management system greatly improves the work efficiency, and also provides conditions for accurate energy data statistics, analysis and recording in the later stage.
5.1 系统运行连续、可靠、安全 The system runs continuously, reliably and safely
The energy management system improves the function of the system according to the energy use characteristics of bio-pharmaceutical enterprises.The system can continuously and reliably evaluate and match the company's energy consumption indicators, and strengthen the monitoring of key energy consumption data and energy consumption equipment.
5.2 系统操作使用简便 The system is easy to operate and use
From the analysis and summary of energy management personnel to the review and approval of relevant leaders, from departmental energy management to enterprise energy summary and report, the whole work process is clear and easy to understand, in line with the overall energy management requirements and enterprise energy management standards.
5.3 系统监管简洁有效 System supervision is simple and effective
This system carries on the energy data management according to the EMS mode, causes the system operation to be concise, carries on the centralized management control to the decentralized energy data.According to the data analysis results, the corresponding solutions are proposed to achieve the energy conservation targets set by the enterprise.
5.4 实现精细化管理 Implementation of fine management
Through the automatic data collection of the energy management system, the real-time and accuracy of the data are greatly improved, and the refined energy management is realized.
 Shi Wei. Application of energy Management System in bio-pharmaceutical enterprises [D]. Shanghai: Fudan University, 2011.
 Hu Depeng, Qi Junfei, Meng Ren, JIANG Jingming, Liu Daming.Application of power Energy Management System in bio-pharmaceutical enterprises [J]. Electrical Engineering and Automation.2019.08.
 Design and Application Manual of Acrel Enterprise Microgrid.2020.06 edition.
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2023.06.07 06:50 Acrel-electric Discussion about the application of medical IT power system in a hospital
摘要：本文主要阐述了IT隔离电源系统在深圳市第三人民医院ICU、手术室内的应用，以及IT隔离电源系统的重要性、优点及注意事项。 Abstract: This article mainly describes the application of IT isolated power system in ICU and operating room of the Third People's Hospital of Shenzhen city, as well as the importance, advantages and matters needing attention of IT isolated power system.submitted by Acrel-electric to u/Acrel-electric [link] [comments]
Key words: IT isolated power supply, system, ground
1、项目概况 Project overview
深圳市第三人民医院项目，位于龙岗区布吉镇李朗立交桥西南侧，建设用地 100005 ㎡，总建筑面积 81737 ㎡，包含门诊楼和医技科研楼、住院楼、行政楼、学术报告厅等共十四栋建筑及配套道路、广场、绿化等。为深圳市重大建设项目，是一所与中心城建设相配套适应 深圳市规划发展的现代化的平战结合的传染病医院。是集医疗、科研、防保、教学与康复为 一体的“三级”传染病医院。
The project of Shenzhen Third People's Hospital is located in the southwest side of Lilang overpass in Buji Town, Longgang District. The construction area is 10,0005 ㎡, and the total construction area is 81,737 ㎡, including 14 buildings such as outpatient building, medical technology research building, inpatient building, administrative building and academic lecture hall, and supporting roads, squares and greening, etc..As a major construction project of Shenzhen city, it is a modern infectious disease hospital which is compatible with the construction of the central city and ADAPTS to the planned development of Shenzhen city.It is a three-level infectious disease hospital integrating medical treatment, scientific research, prevention and protection, teaching and rehabilitation.
2、关于设置 IT 隔离电源系统的相关规范要求
Specification requirements for setting up IT isolated power system
随着社会经济的不断发展，大型综合型的现代化医院不断投入建设，因而医院电气安全可靠也引起来业界的重视，其中关于 ICU、手术室等重要场合的配电安全可靠越来越引起业界重视。尤其是关于IT隔离电源的设置。GB16895.24-2005/IEC60364-7-710:2002 标准中规定，在医疗领域2类医疗场所内，用于维持生命的、外科手术的和其他位于“患者区域”内的医疗电器设备和系统的供电回路应选用带绝缘监视的医疗IT系统供电。2008年8月1日正式实施的《民用建筑电气设计规范》中12.8.6对医疗场所采用的IT系统供电做了相应要求和规定。
With the continuous development of society and economy, large comprehensive modern hospitals are constantly put into construction, so the electrical safety and reliability of hospitals have also attracted the attention of the industry.The safety and reliability of power distribution in important occasions such as ICU and operating room have attracted more and more attention from the industry. Especially with regard to IT isolation power Settings.According to gb16895.24-2005 /IEC60364-7-710:2002, the power supply circuit for life-sustaining, surgical, and other medical electrical equipment and systems located in the "patient area" in class 2 medical facilities in the medical field shall be powered by medical IT systems with insulation and monitoring.12.8.6 In the Civil Building Electrical Design Code officially implemented on August 1, 2008, the corresponding requirements and regulations are made for the POWER supply of IT system used in medical places.
In class 2 medical facilities, the medical IT system shall be used for the power supply circuits for life-sustaining, surgical and other medical electrogas equipment and systems located in the "patient area".
Separate medical IT systems should be installed at least once in adjacent rooms for the same purpose.And it is equipped with insulation monitor.
Each health IT system should be located where medical personnel can monitor IT regularly and should be equipped with an audible and visual alarm system.
Medical IT transformers should be equipped with monitoring devices for overload and overheating.
In 12.8.10, relevant provisions are made for auxiliary equipotential connection.At the same time, 12.8.1-12.8.6 are stipulated in the provisions of 12.8.10 in accordance with the national standard "Medical Places required by Special Devices or Places" GB16895.24.The two types of places include: emergency room (outpatient operating room), operating room, CU room, catheter intervention room and angiography room.
3、IT 隔离电源系统简介及医院采用的重要性 Introduction of IT isolated power system and importance of hospital adoption
IT isolates the power system, and I indicates that the power side is not working grounded, or is grounded through high impedance.T represents the grounding protection of the electrical and gas equipment at the load side.IT system in the power supply distance is not very long, the reliability of power supply is high, good security.Generally used in places where blackouts are not allowed, or where strict continuous power supply is required, IT systems must be used in hospital operating rooms, emergency rooms, ICU rooms, and other type ii places.The use of IT mode power supply system, that is, the neutral point of the power supply is not grounded, once the equipment leakage, single-phase leakage current to the ground is very small, will not destroy the balance of the power supply voltage, so IT can avoid electric shock and other electrical accidents, at the same time is not enough to make the circuit protection electrical equipment action cut off the power supply, to ensure the uninterrupted power supply.So than the power neutral grounding system is safe and reliable.
The importance and necessity of using isolated power systems in hospitals.
而在一般通用建筑中所采用的对地漏电保护开关，其动作响应值是mA 级（如：30 mA），远远不能满足医疗领域的需要。在医院的特殊环境里，漏电流对病人构成了潜在的危险，因此对电气安全设计也提出了特殊的要求。尤其是那些生命攸关的场所，如外科手术室、重症监护室、心脏手术室等地均需安装医用IT隔离电源系统，其目的就是为了保证对该场所内的医疗电器提供一个安全可靠的电源，以确保病人的安全。在导电体触及到心脏(例如，打开心脏的手术或埋置心脏起搏器)时，在普通安全接地的导体之间流过的细微电流会造成微电击和死亡的可能。隔离变压器就象一个门一样，将医疗地区的非保护区域和保护区域的电气线路隔开，保护区域内所有带电导体是与地隔离的，防止线路绝缘层上危险电流造成微电击。绝缘监视仪必须与隔离变压器配合使用，用来连续监视隔离变压器二次侧的带电导体与地之间的电阻及电流，例如，手术过程中流出体外的血液和金属制的手术台可能会使病人与地形成一个通路，这样就存在预期危险电流，一旦医疗电子设备的导电体也形成对地通路(如漏电)，将会造成宏电击(不是所有电流都流经心脏)或微电击(所有电流都流经心脏)。一般供电电网是以大地作为参考电位，相线中的电流可以通过任何未绝缘的通道，对地构成回路，这是电击的根本原因。隔离供电是采用隔离变压器供电，电源经隔离变压器后，原电网中的地已不再是参考电位了。隔离变压器任何一根输出线都不能与地构成回路，只能在两根输出线之间构成回路，这就提高了供电的可靠性。用隔离变压器以分隔非保护区域与保护区域，在隔离变压器的次级引出IT系统的电源，以防止产生接地故障电流。将IT系统引入手术室或急救室，在房间内设一配电箱，箱内放置绝缘监视仪，绝缘监视仪的使用可以及早的显示隔离变压器次级负载部分的绝缘状况，在发生绝缘故障对人身构成威胁前就提供报警信号。而此时电源不会被切断，保证了供电的连续性，医护人员此时可以根据监视仪上显示的漏电流大小和手术的实际情况及时处理，因而人身触电的危险被降低到了最小。
It is well known that when the direct leakage of electrical equipment to the human heart is greater than 10uA, it will cause a micro-shock accident to the patient.
However, the action response value of the earth leakage protection switch used in general general buildings is mA level (such as: 30 mA), which is far from meeting the needs of the medical field.In the special environment of hospital, leakage current poses a potential danger to patients, so special requirements are put forward for electrical safety design.In particular, those vital places, such as surgical operating rooms, intensive care units, cardiac operating rooms, etc., need to install medical IT isolation power system, the purpose of which is to ensure a safe and reliable power supply to medical appliances in the site, so as to ensure the safety of patients.When the conductor touches the heart (for example, during open-heart surgery or embedding a pacemaker), the tiny currents flowing between normally safely grounded conductors can cause micro-shocks and the possibility of death.The isolation transformer acts as a door separating the non-protected area of the medical area from the electrical wiring in the protected area. All live conductors in the protected area are isolated from the ground to prevent the dangerous current on the line insulation from causing a micro-shock.Insulation monitors must be used together with the isolation transformer, used for continuous monitoring isolation transformer secondary side of charged conductor and earth between the resistance and current, for example, in the process of the operation flow of blood and in vitro metal table may make the patient and to form a path, so there are dangerous currents, once the conductor in the medical electronic equipment form of pathways (such as leakage), will cause the macro electric shock (not all current flows through the heart) or micro electric shock (all electric current flows through the heart).Generally, the power supply network takes the ground as the reference potential, and the current in the phase line can pass through any uninsulated channel to form a circuit to the ground, which is the root cause of electric shock.Isolated power supply is the use of isolated transformer power supply, power through the isolated transformer, the original grid is no longer a reference potential.None of the output lines of the isolating transformer can form a circuit with the ground, but can only form a circuit between two output lines, which improves the reliability of power supply.The isolating transformer is used to separate the unprotected area from the protected area, and the power of the IT system is extracted at the secondary of the isolating transformer to prevent the generation of ground fault current.The IT system will be introduced into the operating room or emergency room, and a distribution box will be set in the room, and insulation monitors will be placed in the box. The use of insulation monitors can show the insulation status of the secondary load part of the isolation transformer as early as possible, and alarm signals will be provided before the insulation failure poses a threat to the person.At this time, the power will not be cut off, to ensure the continuity of power supply.Medical staff can then monitor the leakage current and the actual operation, so that the risk of personal shock is minimized.
4、深圳市某医院 IT 隔离电源系统的配置情况 Configuration of IT isolated power supply system in a hospital in Shenzhen city
A hospital in Shenzhen has installed a medical IT isolated power system in all operating rooms and ICUs.Specific composition including isolation transformer, insulation monitors, external alarm and display, current transformer, etc., the system sets the continuity of insulation monitoring, monitoring, and improve the fire load transformer temperature monitoring at an organic whole, reduces the contact voltage and the floor drain current, make person get an electric shock hazard to minimize, greatly improve the ability of accident prevention, to keep the power supply security.A hospital in Shenzhen city chose Bendell IT isolated power supply system from Germany. 系统图如下： The system diagram is as follows:
The IT isolated power system in the ICU is as follows:
Each ICU is equipped with a set of 6.3KVA IT system (including 6.3KVA isolation transformer ES710, insulation monitor 107TD47, current transformer STW2, external alarm display and tester MK2007CBM-CN, special instrument power supply AN450).
2）手术室中IT隔离电源系统图 Diagram of IT isolated power supply system in operating room
Each operating room is equipped with a set of 8KVAIT isolated power supply system (including isolation transformer 8KVA, insulation monitor, special power supply, external alarm display and tester MK2007CBM-CN).
3）系统设备功能: System and equipment functions:
a)绝缘监视仪 Insulation monitor
- Insulation monitoring and alarm system conforms to IEC61557-8 and IEC60364-7-710 standards.
- Special insulation monitors for medical IT systems
- Insulation monitoring, load monitoring and isolation transformer temperature monitoring functions
- LCD with backlit display
- insulation monitoring response value adjusting range 50kΩ-500Ω
- Adjustment range of overload monitoring response value 5A-50A
- Output alarm relay
- RS485 interface
-Measured value analog current signal output
- Built-in or external self-check button
- Wiring monitoring
- Guide rail installation
- ac impedance should be at least 100kΩ;
- The test voltage shall not be greater than dc 25V;
- Even in the case of fault, the peak value of its injected current is not greater than 1Ma;
- the latest in insulation resistance to the 50 kΩ, should be a signal.And the apparatus for testing this function is configured.
b)隔离变压器 Isolating transformer
-满足《建筑物电气装置 第 7-710 部分：特殊装置或场所的要求—医疗场所
- 容量 3.15-10kVA
- 噪音低于 35 分贝
-变压器的二次侧额定电压 Un 不超过 250V，用于移动式和固定式设备的医疗 IT 系统采用单相变压器，其额定输出容量不小于 0.5Kva，不超过 10Kva。
- Meeting electrical installations in buildings - Part 7-710: Requirements for special installations or places - Medical places
It is stipulated in GB16895.24-2005/IEC60364-7-710:2002 710.512.1.6 that medical isolating transformers shall meet the requirements of IEC61558-2-15.
- 3.15-10 kva capacity
- Temperature sensor is installed inside the winding
- Noise below 35 decibels
- The transformer is installed close to the medical site, in the cabinet or in the outer sheath to avoid inadvertent contact with live parts.
- the rated voltage on the secondary side of the transformer shall not exceed 250V. Medical IT systems for mobile and stationary equipment shall adopt single-phase transformers with rated output capacity of not less than 0.5Kva and not more than 10Kva.
- The metal housing of the isolating transformer is connected with the local equipotential connection terminal plate.
c) 外接报警显示和测试仪 Alarm and displaying device
- RS485 接口
- External alarm and display devices for insulation monitors
- Digital tube displays insulation resistance and load status
- Buzzer sound alarm and mute button
- RS485 interface
- Chinese panel
- The waterproof panel is easy to clean
- Real-time monitoring of isolating transformer load condition and transformer winding temperature.
- A green light indicates normal operation;
- A yellow light lights up when the insulation resistance drops to the minimum setting value.This light indicator should not be eliminated or disconnected;
- When the insulation resistance drops to the minimum setting value, the sound alarm action.The audible alarm can be cancelled;
- When the fault is cleared and restored to normal, the yellow signal should go out.Can monitor overload overheating of medical IT transformers
IT isolated power system has the following advantages:
1) The shock voltage and leakage current are too small to cause electric shock or other electrical accidents;
2) In case of ground fault of the power supply system, the circuit protection device will not cut off the power supply, which ensures the uninterrupted power supply.
Precautions for using IT to isolate power systems.
1）IT 系统不能引出中性线，因为在中性线发生接地故障时绝缘监测仪无法故障报警，系统将变为 TT 或 TN 系统，再发生相线接地故障，则系统电源将被切断，可能会产生严重后果。
1) The IT system cannot lead out the neutral wire, because the insulation monitor cannot give an alarm when the neutral wire has ground fault, and the system will
If TT or TN system is changed, the power supply of the system will be cut off if the phase-to-ground fault occurs again, which may have serious consequences.
2）由于 IT 系统发生一相接地时，另两相对低电压将升高，因此对电气线路及电气设备绝缘水平要求较高。
2) The other two relatively low voltages will increase when the IT system is connected to the ground, so the electrical circuits and electrical equipment are insulated, the level is high.
3）IT 系统的绝缘监测仪需通过 PE 线接地，因此其与PE线的连接必须可靠。
3) The insulation monitor of the IT system needs to be grounded through the PE wire, so its connection with the PE wire must be reliable.
An introduction to the Acrel Medical IT Isolation power system
With the wide application of electronic medical equipment in the field of hospitals, leakage current poses more and more threats to patients, especially in those places where life is crucial. During surgery or under anesthesia, a variety of electrodes and sensors are directly inserted into the body of patients, and tiny leakage current may lead to death by electrocution.In addition, some medical equipment is used to maintain the life of seriously ill patients, once the equipment power failure, it will also pose a threat to the lives of patients.Therefore, the electrical design of this special place for medical treatment should be carried out in strict accordance with national standards and norms.
Ankore medical IT system insulation monitoring fault location device and system are suitable for the hospital operating room, ICU(CCU) ward and other important places, can provide safe, continuous, reliable power supply solutions for such places.
7.2 医用隔离电源系统Medical isolation power system
The medical Isolated power monitoring system is used to centrally monitor the health of the medical IT system in all medical 2 locations in the medical building.The centralized monitoring system can be set up in the hospital electrical operation and maintenance personnel on duty room, also can be integrated in other power monitoring system, monitoring by professional electrical personnel, once a set of IT systems fail, electrical maintenance personnel can in time to make a judgment, and according to the site condition for processing.
系统拓扑图 System topology
7.3 软件功能Software functions
Acrel medical isolated power monitoring system is based on the touch screen software design, the software has a variety of functions such as remote measurement, remote parameter setting and remote self-inspection, which provides a powerful system integration tool for the centralized monitoring of the isolated power system in 2 types of hospitals.The main functions of the software are as follows:
Primary diagram and field distribution display
The system has the function of one-time diagram and field distribution diagram display, can intuitively understand and timely find the alarm location or area of IT power supply system, so as to facilitate professionals to timely arrive at the scene for fault troubleshooting;
Real-time data acquisition and display
The parameters of each isolated power system are collected by means of insulation monitoring instrument and insulation fault location instrument installed in each isolated power system.The collected data will be displayed on the interface of the monitoring system in real time. These monitoring parameters include insulation resistance of IT system to ground, transformer load current, transformer winding temperature and insulation fault circuit, etc.
■ 故障报警Fault alarm
All kinds of faults in the medical isolated power system, such as insulation fault, overload fault, overtemperature fault and connection break fault, are uniformly processed and recorded, and information such as fault type, monitoring value, fault location and fault occurrence time can be displayed directly on the display interface.At the same time start the monitoring system sound and light alarm system, timely remind the relevant personnel, fault treatment.Among them, the sound alarm signal can be manually eliminated.
■ 远程参数设置和查询Remote parameter Settings and queries
Through the system, all kinds of alarm parameter thresholds of insulation monitors in medical isolated power supply systems can be adjusted and set remotely according to requirements, and these alarm parameter values can also be checked at will.The parameters include insulation alarm value, load current alarm value and isolation transformer temperature alarm value
■ 图形显示功能：Graphic display function:
7.4 安科瑞医用IT系统四件套选型 Acrel medical IT system four-piece set selection
The system can be in the form of a curve, showing the insulation status of each set of isolated power supply system, load status, as well as the isolation transformer temperature rise status, as well as their change trend, in order to facilitate the sub-managers to understand and analyze the operating changes of each power supply system, targeted maintenance and maintenance of some systems.
Insulation monitoring products of medical IT system (a four-piece set) include AITR S series medical isolation transformer, AIM-M10 medical intelligent insulation monitor, abakh 0.66P26 current transformer and AID series (AID10, AID150) external alarm and display instrument, etc., as shown in Figure 5.
Name and type
AITR series medical isolation transformer
AITR系列隔离变压器专用于医疗IT系统，铁芯采用日本进口的硅钢片叠加而成，损耗很小。绕组间采用了双重绝缘处理，并设有静电屏蔽层，减少了绕组间的电磁干扰。线包内安装了 PT100 温度传感器，用于监测变压器温度。整体采用真空侵漆处理，增加了机械强度和抗腐蚀性。产品具有很好的温升性能和很低的噪声。AITR series isolation transformer is specially used in medical IT system, and the core superposition adopts the silicon steel sheet imported from Japan, which has very small losses. The windings are treated with double insulation and have electrostatic shielding layer, which reduces electromagnetic interference between windings. The PT100 temperature sensor is installed in the windings to monitor the temperature of transformer. The whole body is treated with vacuum invasion paint, which increases mechanical strength and corrosion resistance. The product has good temperature rise performance and very low noise.
AIM-M10 medical insulation monitoring device
AIM-M10 medical insulation monitoring device is special for medical IT system.It is used to monitor the insulation status of IT system.It can send out alarm signals when insulation fault occurs.
The AKH-0.66P26 type current transformer is the protective current transformer which the maximum measurable current is 60A and the transformation ratio is 2000:1. The current transformer is directly fixed inside cabinet by screwing
AID series external alarm and displayer
It is suitable for wall installation embedded and can monitor 1 AIM-M10 insulation monitor. It has sound and light alarm function of insulation, overload, overtemperature and equipment failure, and RS485 communication.
LCD display, RS485 bus, centralized monitoring of up to 16 SETS of AIM-M10 medical intelligent insulation monitor data, sound and light alarm can be remote. The AID150 can also monitor data from multiple AIM-R100 residual current monitors.
Table 1 Insulation monitoring products of medical IT system (four-piece set)
Product information of IT isolated power supply system of Bender, Germany.
Wang Houyu on Applied Building Electricity of IT System, 2008 (11) : 3-7.
Application of Liu Jianjun and IT Isolated power Supply system in Shenzhen Third People's Hospital.
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