A circuit breaker opening and closing coil repetitive pulse detection device

By using the repeat pulse method detection device in the circuit breaker split-closing coil, and using the repeat pulse generator and high-speed oscilloscope to collect and analyze signals, the problem of low efficiency of short-circuit fault detection between turns of the circuit breaker split-closing coil in the prior art is solved, and more efficient and sensitive fault detection is achieved.

CN112198426BActive Publication Date: 2025-03-28PINGDINGSHAN POWER SUPPLY ELECTRIC POWER OF HENAN +3
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Patent Information

Application Number
CN202011172135.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-10-28
Publication Date
2025-03-28
Estimated Expiration
2040-10-28

AI Technical Summary

Technical Problem

The prior art is difficult to effectively detect the inter-turn short circuit fault of the circuit breaker split-closing coil, resulting in low detection efficiency and insufficient sensitivity, which affects the safe operation of the power grid and equipment.

Method used

The circuit breaker split-closing coil repeating pulse detection device is adopted. The device includes a detection unit and an analysis unit. The detection unit can output exactly the same repeating pulse and collect the pulse signal of the coil through a USB interface and make a fault judgment.

Benefits of technology

It improves the efficiency and sensitivity of fault detection of circuit breaker opening and closing coils, can more accurately judge the severity of the fault, reduces the dependence of manual inspection, and improves the reliability and efficiency of the detection.

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Abstract

The present invention relates to a circuit breaker opening and closing coil repetitive pulse method detection device, belonging to the technical field of electrical fault detection devices. It comprises a detection unit and an analysis unit, wherein the detection unit is connected to the analysis unit via a USB communication interface, and the detection unit comprises a repetitive pulse generator 1, a repetitive pulse generator 2, a 220V AC power supply and a high-speed oscilloscope, wherein the repetitive pulse generator 1 is connected to one end of the circuit breaker opening and closing coil, the repetitive pulse generator 2 is connected to the other end of the circuit breaker opening and closing coil, the 220V AC power supply is respectively connected to the two ends of the circuit breaker opening and closing coil, the channel 1 of the high-speed oscilloscope is connected to one end of the circuit breaker opening and closing coil via a signal conditioning module 1, and the channel 2 of the high-speed oscilloscope is connected to the other end of the circuit breaker opening and closing coil via a signal conditioning module 2. The detection device of the present invention can improve the fault detection efficiency and detection sensitivity of the circuit breaker opening and closing coil.
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