WO2019041545A1 - Automatic medium-voltage transfer switching equipment - Google Patents

Automatic medium-voltage transfer switching equipment Download PDF

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Publication number
WO2019041545A1
WO2019041545A1 PCT/CN2017/109510 CN2017109510W WO2019041545A1 WO 2019041545 A1 WO2019041545 A1 WO 2019041545A1 CN 2017109510 W CN2017109510 W CN 2017109510W WO 2019041545 A1 WO2019041545 A1 WO 2019041545A1
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Prior art keywords
power supply
circuit breaker
automatic
control system
remote
Prior art date
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PCT/CN2017/109510
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French (fr)
Chinese (zh)
Inventor
陈文俊
Original Assignee
常熟市五爱电器设备有限公司
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Publication of WO2019041545A1 publication Critical patent/WO2019041545A1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

Definitions

  • the invention relates to a medium voltage automatic transfer switch device.
  • the medium voltage automatic transfer switch device is an automatic power conversion system of 12kV and below, which is specially used for high reliability continuous power supply. Suitable for data centers, large buildings, smart grids, hospitals, transportation, airports, command centers and metallurgical chemicals.
  • the object of the present invention is to provide a medium voltage automatic transfer switch device, which is switched by using two vacuum circuit breakers with mechanical and electrical interlocking, and can be used as an automatic transfer switch for selective line fault protection. Independently applied to dedicated dual power automatic switch applications.
  • the technical solution of the present invention is to design a medium voltage automatic transfer switch device, including a control system, which is configured with three conversion modes: an automatic conversion mode, a local conversion mode, and a remote remote conversion mode;
  • the automatic conversion mode includes two switching processes: a cold standby switching process and a hot standby switching process;
  • the cold standby switching process is as follows:
  • the common power supply works, the backup power supply is in the inspection and isolation position, and the circuit breaker is opened;
  • the standby power supply circuit breaker After the common power circuit breaker exits the working position, the standby power supply circuit breaker will automatically enter the working position when the standby power supply voltage is normal;
  • the hot standby switching process is as follows:
  • the local conversion method is as follows:
  • the user selects local switching at the front panel of the controller of the control system, and the switching device control system exits the control logic of the vacuum circuit breaker, and the user controls the splitting of the two incoming circuit breakers on the spot.
  • the remote remote conversion mode is as follows:
  • the user remotely controls the automatic switch through the remote device, and the user controls the remote control by dry node or remotely by using communication.
  • the invention has the advantages and beneficial effects of providing a medium voltage automatic transfer switch device, which is switched by using two vacuum circuit breakers with mechanical and electrical interlocking, and can be used as an automatic transfer switch with selective line fault protection function. Applications can also be used independently for dedicated dual power automatic switching applications.
  • the medium voltage automatic transfer switch device of the invention has four key components:
  • Incoming cabinet components for carrying two incoming power supplies and switchgear including busbar system, voltage and current transformers, lightning arresters, fast earthing switches, live displays, cable connection branches, and optional line protection And related secondary equipment.
  • Vacuum circuit breaker for excellent performance of the main circuit conversion actuator.
  • Intelligent control system for judging and executing automatic conversion and reliable operation of equipment, and has multiple modes of redundancy control such as local conversion or remote remote conversion.
  • the interlock system has mechanical interlock and electrical interlock. Each interlock operates independently, and at the same time builds the system's safety system to ensure the double safety of automatic operation and manual operation.
  • the incoming line system of the medium voltage automatic transfer switch device of the invention inherits the design features of the KYN28 series metal armored enclosed switchgear, and realizes the physical isolation of the complete meaning of the two incoming line intervals. Easy maintenance, small size and safe operation.
  • the incoming line system of the medium voltage automatic transfer switch device of the invention is divided into two component modules:
  • the faulty backup power supply can be isolated and repaired separately, without affecting the common power supply;
  • the backup power supply can be a stable mains, or a generator
  • the two-way incoming power supply is arranged separately, and the on-site personnel can carry out the safe maintenance and overhaul of another faulty power supply without affecting the continuous operation.
  • the cabinet adopts the central structure of the circuit breaker, which greatly facilitates the operation of the maintenance personnel and facilitates the repair and replacement of the circuit breaker.
  • the smaller form factor provides customers with a more standard mounting size and field layout.
  • Each cabinet is packaged and transported separately for flexible handling and assembly.
  • Each interval is divided into four independent metal separations. One interval arcing fault will not extend the influence to another interval.
  • the relay instrument room is isolated from other high-voltage compartments, and the door can be opened when the high-voltage is energized.
  • the medium-voltage automatic transfer switch device uses two independently operated vacuum circuit breakers with mechanical interlocking as the actuator for switching between high-voltage circuits.
  • the selective protection relay can cut off the fault current, and the front-end circuit breaker can also be short-time resistant. Fault current within the tolerance of the product standard.
  • Vacuum circuit breakers have excellent electrical performance.
  • the system consists of two circuit breakers placed in separate compartments. There are fixed mechanical interlocks and electrical interlocks between the two circuit breakers to ensure that only one circuit breaker can be connected at any time. The design requirements of the gate.
  • the vacuum interrupter has the characteristics of high stability, large capacity, small volume and long life, and the highest safety standard.
  • the spring operating mechanism with modular design is simple and reliable, simplifying the mechanism and ensuring stable operation of the mechanism.
  • the control system of the medium voltage automatic transfer switch device of the invention is composed of one control cabinet and two incoming PT handcars in the self-contained incoming line system.
  • control cabinet The main functions of the control cabinet:
  • the control cabinet integrates a complete intelligent control system to independently operate the automatic switching function of the dual power supply in the overall medium voltage scheme.
  • the control system integrates all functions of power supply monitoring, logic judgment, conditional lockout, action output, accident alarm, event record, communication network, etc. It is one of the key cores for managing power supply switching, ensuring power supply quality and improving power supply continuity.
  • the system is based on voltage judgment, and has voltage PT disconnection blocking protection to avoid misjudgment and make the action more accurate.
  • the independent control cabinet can be a separate outlet interval, which can be placed on the left or right side of the two incoming line intervals to form more flexible options such as cable upper/lower outlet or copper cabinet top outlet. It can also be used as a busbar lift/interval with adjacent busbars to form a busbar connection adapter cabinet.
  • the main components of the control cabinet are:
  • the medium voltage automatic transfer switch device of the invention can be applied to the switching occasions between a plurality of power sources, and is mainly divided into:
  • the automatic transfer switch provides a unique set of features for this application.
  • the oil machine When the oil machine is normal, it is in the stop state and starts at the time of switching.
  • the automatic cold standby switching mode is specially designed to meet the starting characteristics of the oil machine, and the automatic switching is carried out in strict accordance with the operating personnel's operating specifications to improve the reliability of the process. Sex and safety to meet the safety requirements of the grid.
  • a medium voltage automatic transfer switch device includes a control system, and the control system is configured with three conversion modes: an automatic conversion mode, a local conversion mode, and a remote remote conversion mode;
  • the automatic conversion mode includes two switching processes: a cold standby switching process and a hot standby switching process;
  • the cold standby switching process is as follows:
  • the common power supply works, the backup power supply is in the inspection and isolation position, and the circuit breaker is opened;
  • the standby power supply circuit breaker After the common power circuit breaker exits the working position, the standby power supply circuit breaker will automatically enter the working position when the standby power supply voltage is normal;
  • the hot standby switching process is as follows:
  • the local conversion method is as follows:
  • the user selects local switching at the front panel of the controller of the control system, and the switching device control system exits the control logic of the vacuum circuit breaker, and the user controls the splitting of the two incoming circuit breakers on the spot.
  • the remote remote conversion mode is as follows:
  • the user remotely controls the automatic switch through the remote device, and the user controls the remote control by dry node or remotely by using communication.

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

Automatic medium-voltage transfer switching equipment, comprising a control system, wherein the control system is configured with three transfer modes: an automatic transfer mode, an on-site transfer mode and a remote control transfer mode. When the control system enters any of the transfer modes, the other two transfer modes are locked, thereby preventing the occurrence of a logic confusion phenomenon caused by multi-command operations. The automatic medium-voltage transfer switching equipment uses two vacuum circuit breakers having mechanical and electrical interlocking to carry out handover, can serve as an automatic incoming line transfer switching application having a selective line fault protection function, and can also be independently applied to a special purpose automatic dual-power supply handover switch application.

Description

中压自动转换开关设备Medium voltage automatic transfer switch device 技术领域Technical field
本发明涉及中压自动转换开关设备。The invention relates to a medium voltage automatic transfer switch device.
背景技术Background technique
中压自动转换开关设备为12kV及以下的电源自动转换***，专门用于高可靠性连续供电的场合。适用于数据中心、大型楼宇、智能电网、医院、交通、机场、指挥中心及冶金化工等类型的场所。The medium voltage automatic transfer switch device is an automatic power conversion system of 12kV and below, which is specially used for high reliability continuous power supply. Suitable for data centers, large buildings, smart grids, hospitals, transportation, airports, command centers and metallurgical chemicals.
发明内容Summary of the invention
本发明的目的在于提供一种中压自动转换开关设备，使用两台具有机械和电气联锁的真空断路器进行切换，可作为具有选择性线路故障保护功能的进线自动转换开关应用，也可独立应用于专用的双电源自动切换开关应用。The object of the present invention is to provide a medium voltage automatic transfer switch device, which is switched by using two vacuum circuit breakers with mechanical and electrical interlocking, and can be used as an automatic transfer switch for selective line fault protection. Independently applied to dedicated dual power automatic switch applications.
为实现上述目的，本发明的技术方案是设计一种中压自动转换开关设备，包括控制***，所述控制***配置三种转换模式：自动转换方式、就地转换方式和远程遥控转换方式；In order to achieve the above object, the technical solution of the present invention is to design a medium voltage automatic transfer switch device, including a control system, which is configured with three conversion modes: an automatic conversion mode, a local conversion mode, and a remote remote conversion mode;
所述控制***进入任意一种转换方式时，闭锁其他两种转换控制，防止多命令操作令逻辑混乱的现象发生。When the control system enters any of the conversion modes, the other two types of conversion control are blocked to prevent the multi-command operation from causing the logic to be confused.
优选的，所述自动转换方式包括两种切换过程：冷备用切换过程和热备用切换过程；Preferably, the automatic conversion mode includes two switching processes: a cold standby switching process and a hot standby switching process;
所述冷备用切换过程如下：The cold standby switching process is as follows:
正常运行时，常用电源工作，备用电源处于检修隔离位置，断路器分闸；In normal operation, the common power supply works, the backup power supply is in the inspection and isolation position, and the circuit breaker is opened;
A1)当***检测到常用电源电压故障后，经延时，断路器分闸；A1) When the system detects a common power supply voltage failure, the circuit breaker is opened after a delay;
A2)常用电源断路器分闸后经延时后自动退出工作位置至检修隔离位置；A2) After the common power circuit breaker is opened, it will automatically exit the working position to the maintenance isolation position after delay;
A3)常用电源断路器退出工作位置后，备用电源电压正常时，备用电源断路器将自动进入工作位置；A3) After the common power circuit breaker exits the working position, the standby power supply circuit breaker will automatically enter the working position when the standby power supply voltage is normal;
A4)备用电源断路器合闸，完成全部切换操作；A4) The backup power circuit breaker is closed to complete all switching operations;
所述热备用切换过程如下：The hot standby switching process is as follows:
正常运行时，常用电源工作，备用电源的断路器处于工作位置，断路器分闸；In normal operation, the common power supply works, the circuit breaker of the standby power supply is in the working position, and the circuit breaker is opened;
B1)当***检测到常用电源电压故障后，经延时进行分闸；B1) When the system detects a common power supply voltage failure, it is tripped after a delay;
B2)当备用电源正常时，经过延时备用电源断路器合闸，从而完成切换动作。 B2) When the standby power supply is normal, the standby power supply circuit breaker is closed after the delay, thereby completing the switching action.
优选的，所述就地转换方式如下：Preferably, the local conversion method is as follows:
用户在控制***的控制器前面板处选择就地切换，转换设备控制***退出对真空断路器的控制逻辑，由用户在现场对两路进线断路器分合进行控制。The user selects local switching at the front panel of the controller of the control system, and the switching device control system exits the control logic of the vacuum circuit breaker, and the user controls the splitting of the two incoming circuit breakers on the spot.
优选的，所述远程遥控转换方式如下：Preferably, the remote remote conversion mode is as follows:
用户通过远程设备对自动切换开关进行远程控制，用户借由干结点遥控控制,或利用通讯进行远程控制。The user remotely controls the automatic switch through the remote device, and the user controls the remote control by dry node or remotely by using communication.
本发明的优点和有益效果在于：提供一种中压自动转换开关设备，使用两台具有机械和电气联锁的真空断路器进行切换，可作为具有选择性线路故障保护功能的进线自动转换开关应用，也可独立应用于专用的双电源自动切换开关应用。The invention has the advantages and beneficial effects of providing a medium voltage automatic transfer switch device, which is switched by using two vacuum circuit breakers with mechanical and electrical interlocking, and can be used as an automatic transfer switch with selective line fault protection function. Applications can also be used independently for dedicated dual power automatic switching applications.
本发明中压自动转换开关设备由四个关键组成部分：The medium voltage automatic transfer switch device of the invention has four key components:
1.用于承载两路进线电源和开关设备的进线柜体组成部分，其中包括母线***、电压电流互感器、避雷器、快速接地开关、带电显示器、电缆连接分支、可供选择的线路保护及相关二次设备。1. Incoming cabinet components for carrying two incoming power supplies and switchgear, including busbar system, voltage and current transformers, lightning arresters, fast earthing switches, live displays, cable connection branches, and optional line protection And related secondary equipment.
2.用于承接主回路转换执行机构的性能优异的真空断路器。2. Vacuum circuit breaker for excellent performance of the main circuit conversion actuator.
3.用于判断和执行设备自动转换、可靠动作的智能控制***，并具备就地转换或远方遥控转换等多种方式冗余控制。3. Intelligent control system for judging and executing automatic conversion and reliable operation of equipment, and has multiple modes of redundancy control such as local conversion or remote remote conversion.
4.为确保人员和设备安全运行的联锁***，同时具备机械联锁和电气联锁，每种联锁独立运行，同时构建***的安全体系，确保自动运行和人工操作的双重安全。4. In order to ensure the safe operation of personnel and equipment, the interlock system has mechanical interlock and electrical interlock. Each interlock operates independently, and at the same time builds the system's safety system to ensure the double safety of automatic operation and manual operation.
本发明中压自动转换开关设备的进线***继承了KYN28系列金属铠装封闭式开关设备的设计特点，实现了2台进线间隔完全意义的物理隔离。维护方便，体积小巧，操作安全。The incoming line system of the medium voltage automatic transfer switch device of the invention inherits the design features of the KYN28 series metal armored enclosed switchgear, and realizes the physical isolation of the complete meaning of the two incoming line intervals. Easy maintenance, small size and safe operation.
本发明中压自动转换开关设备的进线***分为2个组成模块：The incoming line system of the medium voltage automatic transfer switch device of the invention is divided into two component modules:
1-常用电源进线柜1-Common power inlet cabinet
●用于连接和分断常用电源到主母线中；● Used to connect and disconnect common power sources to the main bus;
●监测备用电源状态，选择安装线路保护时，可进行相应选择性故障排除；● Monitor the standby power status and select the optional line fault protection when installing line protection.
●可将故障的备用电源隔离，单独进行检修，不影响常用电源供电；● The faulty backup power supply can be isolated and repaired separately, without affecting the common power supply;
●包含安全操作的柜体五防联锁。● Five anti-locking cabinets with safe operation.
2-备用电源进线柜2-backup power inlet cabinet
●用于连接和分断备用电源，备用电源可以是稳定的市电，或者是发电机；● used to connect and disconnect the backup power supply, the backup power supply can be a stable mains, or a generator;
●监测常用电源状态，选择安装线路保护时，可进行相应选择性故障排除； ● Monitor the common power status and select the optional line fault protection when installing line protection.
●可将故障的常用电源隔离，单独进行检修，不影响备用电源供电；● It can isolate the common power supply of the fault and separately repair it, without affecting the backup power supply;
●包含安全操作的柜体五防联锁。● Five anti-locking cabinets with safe operation.
○金属铠装开关设备结构，两路进线电源分隔布置为单独间隔，现场人员可在不影响连续运行的前提下，进行另一路故障电源的安全维护和检修。○ Metal armored switchgear structure, the two-way incoming power supply is arranged separately, and the on-site personnel can carry out the safe maintenance and overhaul of another faulty power supply without affecting the continuous operation.
○柜体采用断路器中置式结构，极大方便检修人员的操作，方便断路器的维修更换。○The cabinet adopts the central structure of the circuit breaker, which greatly facilitates the operation of the maintenance personnel and facilitates the repair and replacement of the circuit breaker.
更小的外形尺寸为客户提供更为标准的安装尺寸和现场布置。The smaller form factor provides customers with a more standard mounting size and field layout.
○每个柜体分别包装和运输，灵活搬运和组装。○ Each cabinet is packaged and transported separately for flexible handling and assembly.
○户内安装使用○Indoor installation and use
○每个间隔分为四个相互独立的金属分隔，一个间隔燃弧故障不会将影响扩大到另一个间隔，继电仪表室隔离于其他高压隔室，高压带电时可进行开门检查。○ Each interval is divided into four independent metal separations. One interval arcing fault will not extend the influence to another interval. The relay instrument room is isolated from other high-voltage compartments, and the door can be opened when the high-voltage is energized.
本发明中压自动转换开关设备的真空断路器具有如下特点：The vacuum circuit breaker of the medium voltage automatic transfer switch device of the invention has the following characteristics:
中压自动转换开关设备使用两台具有机械联锁的独立间隔运行的真空断路器作为高压回路之间切换的执行机构，配合选择性保护继电器能够切除故障电流，配合前端断路器亦可短时耐受产品标准耐受值之内的故障电流。The medium-voltage automatic transfer switch device uses two independently operated vacuum circuit breakers with mechanical interlocking as the actuator for switching between high-voltage circuits. The selective protection relay can cut off the fault current, and the front-end circuit breaker can also be short-time resistant. Fault current within the tolerance of the product standard.
●真空断路器具有优异的电气性能。● Vacuum circuit breakers have excellent electrical performance.
●***由两台分别放在独立隔室的断路器构成，在2台断路器间设有固定安装的机械联锁和电气联锁，确保双回路断路器在任何时候只可一台断路器合闸的的设计要求。●The system consists of two circuit breakers placed in separate compartments. There are fixed mechanical interlocks and electrical interlocks between the two circuit breakers to ensure that only one circuit breaker can be connected at any time. The design requirements of the gate.
●真空灭弧室具有高稳定性、大容量、小体积、长寿命的特点，最高安全标准。●The vacuum interrupter has the characteristics of high stability, large capacity, small volume and long life, and the highest safety standard.
●可靠的固封极柱，寿命期内完全免维护，使极柱获得了最高的外部环境适应性，满足了断路器在恶劣的环境下长期稳定运行的需求。同时也极大减轻运行维护的工作。●Reliable solid-sealed poles are completely maintenance-free during the service life, which makes the poles get the highest external environment adaptability and meet the needs of long-term stable operation of circuit breakers in harsh environments. At the same time, it greatly reduces the operation and maintenance work.
●采用模块化设计的弹簧操作机构简单可靠，简化机构的同时，确保机构稳定操作。●The spring operating mechanism with modular design is simple and reliable, simplifying the mechanism and ensuring stable operation of the mechanism.
本发明中压自动转换开关设备的控制***由1台控制柜以及自带进线***中的两台进线PT手车组成。The control system of the medium voltage automatic transfer switch device of the invention is composed of one control cabinet and two incoming PT handcars in the self-contained incoming line system.
控制柜的主要功能：The main functions of the control cabinet:
控制柜整合了完整的智能控制***，在整体中压方案中独立运行双电源的自动切换职能。控制***集成电源监视、逻辑判断、条件闭锁、动作输出、事故报警、事件记录、通讯组网等所有功能于一体，是管理电源投切、保障供电质量、提高供电连续性的关键核心之一。The control cabinet integrates a complete intelligent control system to independently operate the automatic switching function of the dual power supply in the overall medium voltage scheme. The control system integrates all functions of power supply monitoring, logic judgment, conditional lockout, action output, accident alarm, event record, communication network, etc. It is one of the key cores for managing power supply switching, ensuring power supply quality and improving power supply continuity.
***以电压判断为主要依据，同时具有电压PT断线闭锁保护，避免误判，使动作更 准确。The system is based on voltage judgment, and has voltage PT disconnection blocking protection to avoid misjudgment and make the action more accurate.
独立的控制柜的另一个重要功能是其能够成为独立的出线间隔，可以放置在两台进线间隔的左边或右边，形成电缆上/下出线或铜排柜顶出线等更多灵活的方案设置，也可以作为母线提升/与相邻母线间隔形成母线连接转接柜等功能。Another important function of the independent control cabinet is that it can be a separate outlet interval, which can be placed on the left or right side of the two incoming line intervals to form more flexible options such as cable upper/lower outlet or copper cabinet top outlet. It can also be used as a busbar lift/interval with adjacent busbars to form a busbar connection adapter cabinet.
控制柜主要元件组成：The main components of the control cabinet are:
●转换操作智能控制单元●Conversion operation intelligent control unit
●智能电能监控仪表●Intelligent power monitoring instrument
●***综合智能控制触摸显示屏-大屏幕Panel PC(仅智能型控制***选型为标配)● System integrated intelligent control touch display - large screen Panel PC (only intelligent control system selection is standard)
本发明中压自动转换开关设备可以应用于多种电源之间的切换场合，主要划分为：The medium voltage automatic transfer switch device of the invention can be applied to the switching occasions between a plurality of power sources, and is mainly divided into:
一)市电-发电机a) Mains-generator
随着大数据时代的到来，用户对电源的可靠性要求越来越高，负荷容量和供电半径越来越长，高压油机的使用越来越受到市场的青睐。自动转换开关针对该应用方式提供了一系列特有的功能特点。油机正常时为停机状态，切换时启动，除传统热备用切换方式外，专门设计全自动冷备用切换方式，符合油机启动特性，严格按照运行人员操作规范进行自动切换，全面提高过程的可靠性和安全性，最大满足电网的安全要求。With the advent of the era of big data, users are increasingly demanding the reliability of power supplies, load capacity and power supply radius are getting longer and longer, and the use of high-pressure oil machines is increasingly favored by the market. The automatic transfer switch provides a unique set of features for this application. When the oil machine is normal, it is in the stop state and starts at the time of switching. In addition to the traditional hot standby switching mode, the automatic cold standby switching mode is specially designed to meet the starting characteristics of the oil machine, and the automatic switching is carried out in strict accordance with the operating personnel's operating specifications to improve the reliability of the process. Sex and safety to meet the safety requirements of the grid.
1.检测常用电源(故障)1. Detect common power supply (fault)
2.发送发电机启动信号2. Send generator start signal
3.自动进行双位置切换，待发电机运转正常后，自动转入发电机电源回路3. Automatically switch between two positions. After the generator is running normally, it will automatically switch to the generator power circuit.
4.监测备用电源(恢复正常)4. Monitor standby power (return to normal)
5.经过双位置切换，自动转换至常用电源(也可以手动)5. After double position switching, automatically switch to the common power supply (also manual)
6.发送发电机停止信号6. Send generator stop signal
二)市电-市电b) Mains - Mains
市电-市电应用中，Mains-mains application,
1.检测常用电源(故障)1. Detect common power supply (fault)
2.自动转换至备用电源2. Automatic conversion to backup power
3.监测常用电源(恢复正常)3. Monitor common power supply (return to normal)
4.自动转换至常用电源(也可以手动)4. Automatically switch to the usual power supply (also manual)
具体实施方式Detailed ways
下面结合实施例，对本发明的具体实施方式作进一步描述。以下实施例仅用于更加清楚地说明本发明的技术方案，而不能以此来限制本发明的保护范围。 The specific embodiments of the present invention are further described below in conjunction with the embodiments. The following examples are only intended to more clearly illustrate the technical solutions of the present invention, and are not intended to limit the scope of the present invention.
本发明具体实施的技术方案是：The technical solution specifically implemented by the present invention is:
一种中压自动转换开关设备，包括控制***，所述控制***配置三种转换模式：自动转换方式、就地转换方式和远程遥控转换方式；A medium voltage automatic transfer switch device includes a control system, and the control system is configured with three conversion modes: an automatic conversion mode, a local conversion mode, and a remote remote conversion mode;
所述控制***进入任意一种转换方式时，闭锁其他两种转换控制，防止多命令操作令逻辑混乱的现象发生。When the control system enters any of the conversion modes, the other two types of conversion control are blocked to prevent the multi-command operation from causing the logic to be confused.
所述自动转换方式包括两种切换过程：冷备用切换过程和热备用切换过程；The automatic conversion mode includes two switching processes: a cold standby switching process and a hot standby switching process;
所述冷备用切换过程如下：The cold standby switching process is as follows:
正常运行时，常用电源工作，备用电源处于检修隔离位置，断路器分闸；In normal operation, the common power supply works, the backup power supply is in the inspection and isolation position, and the circuit breaker is opened;
A1)当***检测到常用电源电压故障后，经延时，断路器分闸；A1) When the system detects a common power supply voltage failure, the circuit breaker is opened after a delay;
A2)常用电源断路器分闸后经延时后自动退出工作位置至检修隔离位置；A2) After the common power circuit breaker is opened, it will automatically exit the working position to the maintenance isolation position after delay;
A3)常用电源断路器退出工作位置后，备用电源电压正常时，备用电源断路器将自动进入工作位置；A3) After the common power circuit breaker exits the working position, the standby power supply circuit breaker will automatically enter the working position when the standby power supply voltage is normal;
A4)备用电源断路器合闸，完成全部切换操作；A4) The backup power circuit breaker is closed to complete all switching operations;
所述热备用切换过程如下：The hot standby switching process is as follows:
正常运行时，常用电源工作，备用电源的断路器处于工作位置，断路器分闸；In normal operation, the common power supply works, the circuit breaker of the standby power supply is in the working position, and the circuit breaker is opened;
B1)当***检测到常用电源电压故障后，经延时进行分闸；B1) When the system detects a common power supply voltage failure, it is tripped after a delay;
B2)当备用电源正常时，经过延时备用电源断路器合闸，从而完成切换动作。B2) When the standby power supply is normal, the standby power supply circuit breaker is closed after the delay, thereby completing the switching action.
所述就地转换方式如下：The local conversion method is as follows:
用户在控制***的控制器前面板处选择就地切换，转换设备控制***退出对真空断路器的控制逻辑，由用户在现场对两路进线断路器分合进行控制。The user selects local switching at the front panel of the controller of the control system, and the switching device control system exits the control logic of the vacuum circuit breaker, and the user controls the splitting of the two incoming circuit breakers on the spot.
所述远程遥控转换方式如下：The remote remote conversion mode is as follows:
用户通过远程设备对自动切换开关进行远程控制，用户借由干结点遥控控制,或利用通讯进行远程控制。The user remotely controls the automatic switch through the remote device, and the user controls the remote control by dry node or remotely by using communication.
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。 The above description is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make several improvements and retouchings without departing from the technical principles of the present invention. It should also be considered as the scope of protection of the present invention.

Claims (4)

  1. 中压自动转换开关设备，其特征在于，包括控制***，所述控制***配置三种转换模式：自动转换方式、就地转换方式和远程遥控转换方式；The medium voltage automatic transfer switch device is characterized in that it comprises a control system, and the control system is configured with three conversion modes: an automatic conversion mode, a local conversion mode and a remote remote conversion mode;
    所述控制***进入任意一种转换方式时，闭锁其他两种转换控制，防止多命令操作令逻辑混乱的现象发生。When the control system enters any of the conversion modes, the other two types of conversion control are blocked to prevent the multi-command operation from causing the logic to be confused.
  2. 根据权利要求1所述的中压自动转换开关设备，其特征在于，所述自动转换方式包括两种切换过程：冷备用切换过程和热备用切换过程；The medium voltage automatic transfer switch device according to claim 1, wherein the automatic conversion mode comprises two switching processes: a cold standby switching process and a hot standby switching process;
    所述冷备用切换过程如下：The cold standby switching process is as follows:
    正常运行时，常用电源工作，备用电源处于检修隔离位置，断路器分闸；In normal operation, the common power supply works, the backup power supply is in the inspection and isolation position, and the circuit breaker is opened;
    A1)当***检测到常用电源电压故障后，经延时，断路器分闸；A1) When the system detects a common power supply voltage failure, the circuit breaker is opened after a delay;
    A2)常用电源断路器分闸后经延时后自动退出工作位置至检修隔离位置；A2) After the common power circuit breaker is opened, it will automatically exit the working position to the maintenance isolation position after delay;
    A3)常用电源断路器退出工作位置后，备用电源电压正常时，备用电源断路器将自动进入工作位置；A3) After the common power circuit breaker exits the working position, the standby power supply circuit breaker will automatically enter the working position when the standby power supply voltage is normal;
    A4)备用电源断路器合闸，完成全部切换操作；A4) The backup power circuit breaker is closed to complete all switching operations;
    所述热备用切换过程如下：The hot standby switching process is as follows:
    正常运行时，常用电源工作，备用电源的断路器处于工作位置，断路器分闸；In normal operation, the common power supply works, the circuit breaker of the standby power supply is in the working position, and the circuit breaker is opened;
    B1)当***检测到常用电源电压故障后，经延时进行分闸；B1) When the system detects a common power supply voltage failure, it is tripped after a delay;
    B2)当备用电源正常时，经过延时备用电源断路器合闸，从而完成切换动作。B2) When the standby power supply is normal, the standby power supply circuit breaker is closed after the delay, thereby completing the switching action.
  3. 根据权利要求2所述的中压自动转换开关设备，其特征在于，所述就地转换方式如下：The medium voltage automatic transfer switch device according to claim 2, wherein said local conversion mode is as follows:
    用户在控制***的控制器前面板处选择就地切换，转换设备控制 ***退出对真空断路器的控制逻辑，由用户在现场对两路进线断路器分合进行控制。The user selects local switching at the front panel of the controller of the control system, and converts the device control. The system exits the control logic of the vacuum circuit breaker, and the user controls the splitting of the two incoming circuit breakers on site.
  4. 根据权利要求3所述的中压自动转换开关设备，其特征在于，所述远程遥控转换方式如下：The medium voltage automatic transfer switch device according to claim 3, wherein the remote remote conversion mode is as follows:
    用户通过远程设备对自动切换开关进行远程控制，用户借由干结点遥控控制,或利用通讯进行远程控制。 The user remotely controls the automatic switch through the remote device, and the user controls the remote control by dry node or remotely by using communication.
PCT/CN2017/109510 2017-08-30 2017-11-06 Automatic medium-voltage transfer switching equipment WO2019041545A1 (en)

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CN201781316U (en) * 2010-04-29 2011-03-30 杭州德赢科技有限公司 Dual power automatic switching system
US20120090966A1 (en) * 2010-10-18 2012-04-19 Eaton Corporation Automatic transfer switch with transfer inhibitor
CN104901415A (en) * 2015-06-04 2015-09-09 天台信沅电器有限公司 Double-power-supply centralized control device
CN205160197U (en) * 2015-11-20 2016-04-13 Asco电力技术公司 A control circuit for automatic change -over

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101465560A (en) * 2008-12-29 2009-06-24 南京南瑞继保电气有限公司 Method for rapidly switching power supply
CN201781316U (en) * 2010-04-29 2011-03-30 杭州德赢科技有限公司 Dual power automatic switching system
US20120090966A1 (en) * 2010-10-18 2012-04-19 Eaton Corporation Automatic transfer switch with transfer inhibitor
CN104901415A (en) * 2015-06-04 2015-09-09 天台信沅电器有限公司 Double-power-supply centralized control device
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