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A GIS/GCB circuit breaker three-phase opening and closing state monitoring device and using method

A state monitoring and circuit breaker technology, applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of equipment lack of phase operation, short circuit fault, equipment damage, etc., to eliminate the disadvantages of signal and actual inconsistency, avoid feedback errors, The effect of ensuring equipment safety

Active Publication Date: 2022-04-19
CHINA YANGTZE POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a GIS / GCB circuit breaker three-phase opening and closing state monitoring device and its use method. When the three-phase action is inconsistent due to the damage of the moving mechanism or the actual state is inconsistent with the position indication feedback, the equipment will run in a lack of phase or even a short-circuit fault, which will cause equipment damage in severe cases. It has a simple structure and low transformation cost, and can effectively monitor the three-phase circuit breaker. Characteristics of opening and closing state

Method used

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  • A GIS/GCB circuit breaker three-phase opening and closing state monitoring device and using method
  • A GIS/GCB circuit breaker three-phase opening and closing state monitoring device and using method
  • A GIS/GCB circuit breaker three-phase opening and closing state monitoring device and using method

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Embodiment Construction

[0033] Such as Figure 1 ~ Figure 3 Among them, a GIS / GCB circuit breaker three-phase opening and closing state monitoring device, it includes distance sensor 7; The contact point between the contact 4 and the static contact 5; the moving contact 4 of the circuit breaker body is connected with the operating mechanism, and the static contact 5 is fixed; between the moving contact 4 and the static contact 5 and the inner wall of the closed shell 1 Both are provided with insulating supports 3 .

[0034] Preferably, the distance sensor 7 is connected to the observation window 6 outside the closed casing 1 ; the distance sensor 7 is preferably a laser distance sensor 7 .

[0035] Preferably, the distance sensor 7 is connected inside the closed housing 1 .

[0036] Preferably, the distance measurement setting value of the distance sensor 7 is smaller than the distance between the probe of the distance sensor 7 and the inner wall at the opposite end of the closed casing 1 .

[003...

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Abstract

The invention discloses a GIS / GCB circuit breaker three-phase opening and closing state monitoring device and a use method thereof, which includes a distance sensor; the distance sensor is connected with the closed shell of the circuit breaker body, and the probe end of the distance sensor faces to the inside of the circuit breaker body The contact point of the moving contact and the static contact. The device solves the problem that the existing technology only monitors the position state of a transmission element of the operating mechanism. When the operating mechanism is damaged and the three-phase actions are inconsistent or the actual state is inconsistent with the position indication feedback, the equipment will run in a lack of phase or even a short circuit fault. In serious cases The problem of causing equipment damage has the characteristics of simple structure, low renovation cost, and effective monitoring of the three-phase opening and closing status of the circuit breaker.

Description

technical field [0001] The invention belongs to the technical field of state monitoring of electric equipment, and in particular relates to a three-phase opening and closing state monitoring device of a GIS / GCB circuit breaker. Background technique [0002] GIS / GCB is commonly used electrical equipment in power systems. GIS circuit breakers, isolation switches, and grounding switches are installed in metal enclosures, which are packed with pressure SF6 (sulfur hexafluoride) or compressed air; GCB circuit breakers, isolation switches, and grounding switches are enclosed in metal enclosures. In the shell, the metal shell of the circuit breaker room is sealed with pressure SF6 (sulfur hexafluoride) or compressed air, and the metal shell of the general isolation switch and grounding switch is natural air. [0003] In general, the opening and closing of GIS / GCB isolation knife switch and grounding knife switch are driven by a single motor in three-phase linkage operation. Some c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00G01S17/08G01B11/14
CPCG01M13/00G01S17/08G01B11/14
Inventor 李利华杨黎明尹春元杜雄春任波杨鹏肖骏逸王由武
Owner CHINA YANGTZE POWER
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