Physics · Power Systems
For a suspension string of 'n' units with non-uniform unit voltages caused by shunt capacitances, what does selecting an optimal capacitance grading network primarily cause?
- 1Increasing the maximum unit stress to trade for average reduction
- 2Increasing the effective string efficiency by evening out the unit voltage distribution✓
- 3Rendering grading useless for EHV lines
- 4Making the top unit carry most of the voltage to protect lower units
Correct answer
Increasing the effective string efficiency by evening out the unit voltage distribution
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