A. total impedance up to a fault.
B. voltage at the fault point.
C. load current being supplied before the occurrence of a fault.
D. both A and B.
Answer
D. both A and B.
Explanation
The amount of current that will flow through a short circuit depends on two values:
- The system voltage
- The connected total impedance of the path from the source to the point of the fault.
- This impedance normally includes the feeder conductor’s resistance and reactance, any transformers, impedances (going from the point of fault back to the energy source), and any other equipment connected in the path of current flow.
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