Monitoring and recording system of mechanical characteristics of high voltage circuit breaker

Zhuangzhuang, Yang; Xu, Jianyuan

doi:10.1109/icepe-st.2013.6804397

Cited by 6 publications

(1 citation statement)

References 2 publications

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“…This is the main reason why it is crucial for any electric power system to ensure a reliable performance of its breakers. Statistical analysis of worldwide investigation on the reliability of high voltage circuit breakers shows that most failures of high voltage circuit breaker (70% of major faults and 86% of the minor faults) occur on mechanical system [1]. Traveltime is an important parameter to characterize properties of high voltage circuit breaker actuator performance which can directly reflect the operating state of the circuit breaker.…”

Section: Introductionmentioning

confidence: 99%

A Fault Diagnosis Method of High Voltage Circuit Breaker Based on Moving Contact Motion Trajectory and ELM

Niu

Liang

Yuan

et al. 2016

Mathematical Problems in Engineering

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In order to avoid the deficiencies of conventional high voltage circuit breaker mechanical properties detection methods, a new algorithm based on image block matching with diamond search strategy is presented in this paper. The motion of auxiliary mark on the pull rod or shaft is firstly recorded by a high-speed and high-definition digital camera when the circuit breaker is open or close. Then the motion trajectory is acquired through diamond image block matching method. The mechanical parameters, such as travel and open and close velocity, are calculated according to the travel-time curve of the circuit breaker. Finally, evaluation model is constructed taking mechanical parameters characteristic values as inputs of ELM. Comparing to the existing techniques, our method is a noncontact measurement based on computer vision. It is easy and convenient for practical application since it need not any electrical and mechanical connection to the breaker. Another advantage of our method is that it can obtain the line and angle displacement simultaneously. The experiment results on the circuit breaker of 220 kv show that our method is effective for breaker mechanical properties detection.

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Section: Introductionmentioning

confidence: 99%