Home > categories > Measurement & Analysis Instruments > Resistance Meters > What are the direct resistance and loop resistance? What are the differences between the two? Why should they be measured? How to distinguish between DC test and AC test?
Question:

What are the direct resistance and loop resistance? What are the differences between the two? Why should they be measured? How to distinguish between DC test and AC test?

What are the direct resistance and loop resistance? What are the differences between the two? Why should they be measured? How to distinguish between DC test and AC test?

Answer:

Loop resistance refers to the contact resistance in the switching circuit, which can be measured by the ED0303 series loop resistance tester produced by Wuhan electric power equipment company
The difference between the two is that the device object of the test is differentThey are measured to determine whether they have short circuits or open circuits and poor contactThe equipment used in the DC test and the AC test is different
DC resistance is the DC resistance of inductive loads such as transformers. It can be measured by the ED0204 series transformer DC resistance tester produced by Wuhan electric power equipment company

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