It has been common practice for a long time in this country to ground the secondary circuits and cases of most instrument transformers used in switching stations, substations and generating stations and in certain other types of installations for reasons of safety to personnel and equipment. The object of the grounding is to limit the voltage on the secondary circuits and cases due to the effects ...
AIEE No 52-1951由美国电气电子工程师学会 US-IEEE 发布于 1951-03-08,并于 1951-03-08 实施。
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