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Question:

Do I need to measure DC resistance when current transformer is connected? Why?

Do I need to measure DC resistance when current transformer is connected? Why?

Answer:

There is no such project in the calibration of transformers. Generally not required.
The verification items for current transformers and voltage transformers include:1, appearance inspection2 insulation resistance measurement3. Insulation strength test4, winding polarity check5 basic error measurement6 、 stability test.
The GB1208 current transformer standard is not requiredHowever, the standard GB50150 standard for power system acceptance requires the measurement of one or two direct current resistance

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