1. Voltage problemReason: High voltage will cause the transformer to be over-excited and the sound will become louder and sharper, which will directly seriously affect the noise of the transformer.Judgment method: First look at the low-voltage output voltage. Do not look at the voltmeter on the low-
Classification of circuit breakers1Frame circuit breaker (ACB)Frame circuit breaker is also called universal circuit breaker. All its parts are installed in an insulated metal frame. It is usually open. It can be equipped with a variety of accessories. It is more convenient to replace contacts and c
1. Operation inspection measures for distribution transformers(1) Noise inspectionDistribution transformers usually emit a "buzzing" sound during operation, which is uniform and slight. When the sound changes, it means that there is a certain fault in the distribution transformer. Therefor
1. The hazards, causes and types of multi-point ground faults in the transformer core1. The hazards of multi-point ground faults in the coreDuring normal operation of the transformer, the core cannot be grounded at multiple points. During normal operation of the transformer, there is an alternating
Generator excitationThe generator excitation system is the collective name for the power supply and its ancillary equipment that supplies the excitation current of the synchronous generator. It generally consists of two main parts: excitation power unit and excitation regulator.Generator excitation
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