Abstract
In order to strengthen the management of circuit breakers and sense its operation status at any time, condition-based maintenance has been carried out in power grids. Depending on the advanced condition monitoring and diagnosis technology, the abnormality of equipment can be judged and the failure of equipment can be predicted effectively. This paper discusses the state parameters need to be monitored for deep state sensing of high voltage circuit breakers. Monitoring parameters mainly include the current of opening/closing coils and energy storage motor coil, primary current and displacement of operating mechanism, respectively. And then, aiming at the complex installation environment of switch cabinet, a small integrated depth sensing node architecture is designed.
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