Automatic tripping device and method adopting optical-fiber infrared control over thermal failure of power isolating switch
A technology of isolating switch and automatic tripping, which is applied in the direction of protection switch operation/release mechanism, etc., can solve the problems of endangering the safety of the power grid, failure to realize, damage of power high-voltage isolating switch, etc., and achieve the effect of ensuring safe operation
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[0025] The technical scheme of the present invention will be described in detail below in conjunction with the drawings.
[0026] See Figure 1-Figure 6 , The optical fiber infrared control automatic trip device for thermal fault of the power isolating switch of the present invention is composed of a circuit breaker 0, a trip device, an isolating switch, an infrared temperature sensor with an infrared temperature probe, an optical fiber 5 for transmitting signal data, and AD conversion It is composed of device 6, control cable 8, etc. The circuit breaker 0 and the isolating switch are electrically connected through the high-voltage wire 01. The circuit breaker 0 can be an oil-filled switch, a vacuum switch, or a SF-filled switch. 6 Circuit breakers such as gas switches; the trip device includes a circuit breaker tripping coil 9 and a control module 7. When an overheating fault occurs in the isolating switch, the tripping coil 9 can act according to the instructions of the control...
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