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Inversion method and device for high-voltage switch current failure

A high-voltage switch and inversion technology, which is applied in the direction of measuring devices, instruments, and measuring electronics, can solve problems such as unpredictable evaluation of high-voltage switch flow performance, and achieve the effect of improving the efficiency of operation and maintenance

Active Publication Date: 2022-05-20
PINGGAO GRP +1
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Problems solved by technology

[0004] The purpose of the present invention is to provide an inversion method and device for a high-voltage switch current failure, so as to solve the problem that the prior art cannot predict and evaluate the high-voltage switch current performance

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  • Inversion method and device for high-voltage switch current failure
  • Inversion method and device for high-voltage switch current failure
  • Inversion method and device for high-voltage switch current failure

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Embodiment Construction

[0027] The current fault of the circuit breaker will cause the characteristic parameters of the circuit breaker operating mechanism to change. Therefore, it is of great significance to deeply understand and study the state change of the circuit breaker mechanism for the monitoring of the current state of the circuit breaker and its accessories.

[0028] The present invention will be described in further detail below with reference to the accompanying drawings.

[0029] At present, the research on the state detection of the current flow characteristics of the high-voltage switch has been reported in relevant documents at home and abroad. However, in the prior art, there is no effective method for processing the collected relevant current state parameters of the high-voltage switch. The establishment of the processing model is too simple, only a part of the state parameters is considered, and it cannot accurately reflect the current flow state and predict the flow capacity of the...

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Abstract

The invention relates to the field of high-voltage equipment monitoring, in particular to an inversion method and device for a high-voltage switch current failure. The present invention establishes a high-voltage switch flow fault inversion model based on finite element technology and CFD technology, uses monitoring data as the input condition of the simulation model, obtains the inversion temperature by running the inversion model, and then adjusts the temperature according to the comparison result with the monitoring temperature Invert the parameters in the model, and finally judge whether the high-voltage switch has flow capacity at the maximum load according to the inversion model after adjusting the parameters. The invention can carry out model inversion simulation according to the monitoring data, thereby effectively judging whether the high-voltage switch is faulty, thereby proposing an improvement plan, realizing real-time early warning of faults, and improving the operation and maintenance efficiency of the high-voltage switch.

Description

technical field [0001] The invention relates to the field of high-voltage equipment monitoring, in particular to a method and device for inversion of a current-on fault of a high-voltage switch. Background technique [0002] The field operation experience of high-voltage switchgear shows that the current fault is one of its common and frequently-occurring faults. Taking circuit breakers as an example, circuit breakers are important high-voltage and high-current switching electrical equipment in the power system, and they play an important role in the system. Because of its important role in the system, the circuit breaker is the key maintenance object. Electric power technicians have been working on the monitoring of the current state of the circuit breaker, and even early warning, to reduce or cut off various power outages caused by the unplanned outage of the circuit breaker. , as far as possible to avoid or reduce the impact on the overall system. [0003] The external c...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/327
CPCG01R31/3275Y02E60/00
Inventor 王之军姚永其郭煜敬刘亚培王刚张博张豪郝相羽王冠
Owner PINGGAO GRP
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