The problems associated with the use of a series capacitor for power factor improvement is listed in the options. Which option is not true?

• A. The effect of series capacitor is more than that of shunt capacitor in power factor improvement
• B. Switching-in of an unloaded transformer may develop ferro resonance
• C. Series capacitor develops high recovery voltage across the circuit breaker contacts
• D. Series compensated line has a tendency to cause series resonance, called sub synchronous resonance of frequencies lower than power frequencies