ECN | State the values of power factor during resonance condition for RLC series circuit. Also state the importance of power factor.

 i) At resonance, the value of power factor is always UNITY. 

ii) Importance of Power Factor:  

The power factor is important for operation of electrical system because its improvement has following effects:  

 The kVA rating of electrical equipment is reduced, resulting small size and less cost.  

 The current is reduced for same power and voltage, resulting in reduced cross section (size) requirement of the conductor and reduced cost of conductor.  

 Copper losses are reduced. 

 Voltage regulation is improved. 

 There is full utilization of full capacity of electrical equipment. 

 The kVA maximum demand is reduced, resulting in reduced demand charges. 

 High kW output is obtained from generators, resulting in higher kWh energy production.