Current transformers are commonly used in metering and protective relays in the electrical power industry.
2
电流互感器电流互感器是一种仪表变压器，通常与电流表、制电路、护继电器配套使用。
Ct (Current transformer) Current transformers are instrument transformers used in conjunction with ammeters, control circuits and protective relaying. They usually have5 ampere secondaries.
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