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Automatic switching-on controller

An automatic closing and controller technology, applied in the direction of automatic disconnecting emergency protection devices, electrical components, emergency protection circuit devices, etc., can solve the problems of no maintenance function, complex structure, cumbersome control process, etc., to ensure safe operation , Simple and convenient installation, flexible operation

Active Publication Date: 2014-04-30
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This application can intelligently perform automatic reclosing under the condition of obtaining the current power grid status, but it has the disadvantages of large volume, complex structure, cumbersome control process, and no maintenance function; in case of maintenance work, the output closing cannot be realized. Whether the gate operation command is output or not is controlled, which poses a safety threat to the operators

Method used

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  • Automatic switching-on controller
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  • Automatic switching-on controller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The circuit diagram of this embodiment is as figure 2 Shown. The delay trigger circuit includes an energy storage start relay, a closing start relay, a start protection relay, an energy storage delay timer, a first closing delay timer and a second closing delay timer, wherein the energy storage delay The time timer adopts an off-delay timer, the second closing delay timer adopts an on-delay timer, and the first closing delay timer adopts a holding type on-delay timer.

[0033] Among them, the starting protection relay coil CJ3 is connected to the output end of the voltage stabilizing circuit, and the parallel branch composed of the second closing delay timer normally open contact SJ3-1 and the starting protection relay normally open contact CJ3-1 is connected in series A starting protection branch is formed between the starting protection relay coil CJ3 and the voltage stabilizing circuit.

[0034] The branch circuit connected in series by the energy storage start relay co...

Embodiment 2

[0043] The delay trigger circuit described in this embodiment includes an 80C52 single-chip microcomputer, a startup control unit, a closing control unit, and an energy storage control unit welded on a PCB circuit board. The input ends of the 80C52 single-chip microcomputer are respectively connected to the time setting button and the communication module, The output ends of the 80C52 single-chip microcomputer are respectively connected with the start control unit, the closing control unit and the energy storage control unit, and the output ends of the start control unit, the closing control unit and the energy storage control unit are respectively connected with the communication module.

[0044] The rectifier circuit and voltage stabilizer circuit described in this embodiment are also soldered on the PCB circuit board. The circuit diagrams of the rectifier circuit and voltage stabilizer circuit are as follows: image 3 As shown, the circuit diagram of 80C52 microcontroller is as ...

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PUM

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Abstract

The invention discloses an automatic switching-on controller. The automatic switching-on controller comprises an enclosure, a rectifying circuit, a voltage stabilizing circuit, a delay trigger circuit and a communication module are arranged in the enclosure, wherein the communication module is connected with a background control system and an intelligent universal breaker respectively. A time setting button and an overhaul control switch are arranged on the outer wall of the enclosure. The input end of the rectifying circuit is connected an alternating-current power source, the output end of the rectifying circuit is connected with the input end of the delay trigger switch circuit through the voltage stabilizing circuit, the input end of the delay trigger circuit is further connected with the time setting button and the delay trigger circuit is connected with the communication module. The overhaul control switch is connected with the wire inlet side of the alternating-current power source in series. The automatic switching-on controller has an overhaul protection function and provides a safe working environment for operators on the basis that the automatic switching-on function of the breaker is achieved.

Description

Technical field [0001] The invention relates to the technical field of power supply, in particular to an automatic closing controller for controlling the action of an intelligent universal circuit breaker. Background technique [0002] The intelligent universal circuit breaker is a low-voltage circuit breaker that incorporates microprocessor and computer technology. It can make the circuit breaker form a master-slave LAN system through the RS485 standard communication interface and the corresponding communication protocol with the background control system, so that the system can be realized Long-distance four-remote control function; at the same time, it also has online parameter detection, action value adjustable, fault memory and communication functions, so it is widely used. [0003] Intelligent universal circuit breakers are usually installed in box-type transformers. When a fault occurs on the high-voltage side of the transformer, it can automatically stop working, disconnect...

Claims

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Application Information

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IPC IPC(8): H02H3/06H02H7/26
Inventor 强寅诚李军崔恒智郭更须王超飞梁保存
Owner STATE GRID CORP OF CHINA