In the cables, the location of fault is usually found out by comparing____________?
Correct answer: C. the capacitances of insulated conductors
- A. the resistance of the conductor
- B. the inductance of conductors
- C. the capacitances of insulated conductors
- D. all above parameters
Explanation
A cable fault changes the capacitance distribution between its insulated conductors, so comparing their capacitances helps locate the faulty section. Resistance comparison is used in some bridge methods, but capacitance comparison is the usual principle intended here.
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