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Ring main unit ground knife padlock intelligent control device, system and ground knife padlock device

An intelligent control system and intelligent control technology, applied in control systems, grounding devices, padlocks, etc., can solve the problems of live connection ground knife, low safety and reliability, etc.

Active Publication Date: 2022-07-08
广东电网有限责任公司韶关供电局
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, only one mechanical lock is usually hung on the ground knife in the ring network cabinet, which needs to be unlocked manually with a key, and has nothing to do with whether the cable head in the ring network cabinet is live, the safety reliability is low, and there is a live connection ground knife risk

Method used

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  • Ring main unit ground knife padlock intelligent control device, system and ground knife padlock device
  • Ring main unit ground knife padlock intelligent control device, system and ground knife padlock device
  • Ring main unit ground knife padlock intelligent control device, system and ground knife padlock device

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Embodiment 1

[0039]figure 1 This is a schematic structural diagram of an intelligent control device for a ground knife padlock in a ring main unit provided in Embodiment 1 of the present invention, refer to figure 1 , the intelligent control device for the ground knife padlock of the ring main unit provided by the embodiment of the present invention includes: a potential difference sensing module 200, a filtering module 300, a voltage comparison module 400 and a control module 500; the input end A1 of the potential difference sensing module 200 is connected to the ring main unit. 100 connection, the potential difference sensing module 200 is used to sense the voltage of the ring main unit 100 and output it from its output terminal A2; the input terminal B1 of the filtering module 300 is electrically connected to the output terminal A2 of the potential difference sensing module 200, and the output terminal of the filtering module 300 is electrically connected. The terminal B2 is electrically...

Embodiment 2

[0043] As an optional implementation manner of the embodiment of the present invention, communication control may also be performed between the control module 500 and the ground knife padlock 600 . figure 2 This is a schematic structural diagram of an intelligent control device for a ground knife padlock in a ring main unit provided in Embodiment 2 of the present invention. Refer to figure 2 On the basis of the above embodiment, the intelligent control device for the padlock of the ring main unit provided by the embodiment of the present invention further includes a first communication module 700; the input end F1 of the first communication module 700 is electrically connected to the output end E2 of the control module 500. Connection, the output end F2 of the first communication module 700 is connected to the ground knife padlock 600 in communication, the first communication module 700 is used for outputting a second control signal to the ground knife padlock 600 according t...

Embodiment 3

[0046] image 3 A schematic structural diagram of an intelligent control device for a ground knife padlock in a ring main unit provided in Embodiment 3 of the present invention, image 3 The circuit structure of the potential difference sensing module 200 is exemplarily shown. refer to image 3 , the potential difference sensing module 200 includes a voltage sensor Q, an amplifier U1, a first resistor R1 and a first capacitor C1; the first end of the voltage sensor Q is electrically connected to the first input end of the amplifier U1, and the second input end of the amplifier U1 is grounded , the output end of the amplifier U1 is electrically connected to the input end B1 of the filter module 300, the second end of the voltage sensor Q is grounded; the first end of the first resistor R1 is electrically connected to the first input end of the amplifier U1, the first end of the first resistor R1 The second terminal is electrically connected to the output terminal of the ampli...

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Abstract

The embodiment of the invention discloses an intelligent control device, system and ground knife padlock device for a ring main unit ground knife padlock. The control device includes a potential difference sensing module, a filter module, a voltage comparison module and a control module; the potential difference sensing module is used for The voltage of the ring main unit is sensed and output from its output terminal, the voltage comparison module is used to compare the voltage output by the filter module with the preset voltage and generate a trigger signal; the control module is used to generate a first control signal according to the trigger signal to control the ground The state of the knife padlock. The technical solution provided by the embodiment of the present invention adopts the potential difference sensing module to sense the voltage of the ring main unit, and controls the ground knife padlock to unlock or lock through the control module, which can monitor the live state of the ring main unit equipment in real time, and does not require manual labor during the maintenance process. To determine whether the ring network cabinet is live, improve the reliability of live detection, can prevent the live ground closing knife caused by misoperation, and is conducive to ensuring the safety of life, property and equipment.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of power electronics, and in particular, to an intelligent control device and system for a ground knife padlock of a ring main unit, and a ground knife padlock device. Background technique [0002] In the power transmission and distribution system, the ring network switch cabinet (ring network cabinet) plays an important role in the process of power generation, transmission, distribution and power conversion, and can realize the opening and closing, protection, monitoring and control of the circuit. function. The grounding switch (ground knife) plays a vital role in the operation, maintenance and maintenance of the switchgear. [0003] At present, only a mechanical lock is usually hung on the ground knife in the ring main unit, which requires a manual key to unlock, and has nothing to do with whether the cable head in the ring main unit is electrified or not, the safety and reliabi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02B1/24H02B1/16H01H9/54H01H9/28E05B47/00E05B67/00H02P29/00
CPCH02B1/24H01H9/54H01H9/281E05B47/0012E05B67/00H02P29/00
Inventor 戴书军曹骏
Owner 广东电网有限责任公司韶关供电局
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