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GIS inverted bus three-phase knife switch position alarm system based on bus tie current change

A technology of knife switch position and bus-connection current, which is applied to circuit devices, information technology support systems, electrical components, etc., can solve problems such as failure to send alarms in time to notify operating personnel, misoperation of knife switch with load, and low safety , to achieve the effect of avoiding vicious misoperation accidents, high safety and convenient observation

Pending Publication Date: 2021-04-20
JIANGSU ELECTRIC POWER CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a GIS inverted bus three-phase knife switch position alarm system based on bus tie current changes to solve the existing GIS inverted bus three-phase knife switch based on bus tie current changes proposed in the above background technology During the use of the position alarm system, if the existing alarm system fails to open and close the three-phase knife switch in place, it cannot send an alarm to notify the operator in time, which will lead to vicious misoperation accidents of the load-driven knife switch. Occurrence, low security and poor practicability

Method used

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  • GIS inverted bus three-phase knife switch position alarm system based on bus tie current change
  • GIS inverted bus three-phase knife switch position alarm system based on bus tie current change
  • GIS inverted bus three-phase knife switch position alarm system based on bus tie current change

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Embodiment 1

[0025] see Figure 1-3 , the present invention provides a technical solution: a GIS inverted bus three-phase knife switch position alarm system based on changes in the bus coupling current, including a current monitoring probe 1, the output end of the current monitoring probe 1 is electrically connected to a knife switch position monitoring module 2. The output end of the knife switch position monitoring module 2 is electrically connected to the communication module 3, the output end of the communication module 3 is electrically connected to the voltage and current acquisition module 4, and the output end of the communication module 3 is electrically connected to the central processing unit 5, The input end of the central processing unit 5 is electrically connected to a three-phase power supply 6, the output end of the central processing unit 5 is electrically connected to a voltage comparison analysis module 7, and the output end of the voltage comparison analysis module 7 is ...

Embodiment 2

[0029] Such as Figure 1-5 As shown, on the basis of Embodiment 1, the present invention provides a technical solution: the input end of the information transmission module 301 is electrically connected to the output end of the knife switch position monitoring module 2, and the output end of the signal transceiver module 303 is connected to the central processing The input end of unit 5 is electrically connected, the output end of alarm unit 13 is electrically connected with automatic alarm signal light 16 and automatic alarm buzzer 17 respectively, and the output end of warning module 12 is electrically connected with overload trip protection unit 18, overload trip The output end of the protection unit 18 is electrically connected to the reset button 19, the output end of the communication module 3 is electrically connected to the input end of the data storage module 8, and the output end of the signal transceiver module 303 is electrically connected to the input end of the da...

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Abstract

The invention discloses a GIS inverted bus three-phase knife switch position alarm system based on bus tie current change, the output end of a current monitoring probe is electrically connected with a knife switch position monitoring module, the output end of the knife switch position monitoring module is electrically connected with a communication module, and the output end of the communication module is electrically connected with a voltage and current acquisition module. Through the arrangement of the current monitoring probe, the position of the knife switch can be conveniently monitored, the monitored information is transmitted to a central processing unit through the transmission of the communication module, analyzed by the voltage comparison and analysis module and judged by the judgment module on one side of the PLC, and the judged information is conveniently transported to a warning module, in time warning effect is achieved, after receiving the information, the information is transmitted to the inner part of an alarming unit by the warning module, an automatic alarm signal lamp and an automatic alarm buzzer give out alarm light and sound to inform an operator, so that malignant misoperation accidents caused by disconnecting link pulling with loads are avoided, and the safety is high.

Description

technical field [0001] The invention belongs to the technical field of alarm equipment, and in particular relates to a GIS inverted bus three-phase knife switch position alarm system based on bus coupling current changes. Background technique [0002] The bus coupler is to connect the busbars. There are generally isolating switches and circuit breakers on it. The purpose is to increase the reliability of power supply, and it is usually disconnected. Two different transformers are generally connected to both sides. If one transformer fails, the other transformer can continue to supply power to the critical load by closing the circuit breaker and isolating switch. The bus tie is the connection between the busbars and the busbars. It can be a single power supply for double busbars. Busbar protection is an important part of power system relay protection. The bus bar is an important device in the power system and plays a very important role in the entire power transmission and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00G01R31/327
CPCY04S10/40
Inventor 肖伟渠卫东王志贺王菲刘成磊吴志坤沈润王晓辉陈醒
Owner JIANGSU ELECTRIC POWER CO
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