Logo
Select Quick Pages:
Home
About
Contact Us
Disclaimer
Privacy policies
Terms and conditions

The capacitor used in autotransformer circuits for sodium vapor lamps is for

  • The capacitor used in autotransformer circuits for sodium vapor lamps is for improving the power factor of the circuit.
  • An autotransformer is a type of transformer that uses a single winding to step up or step down the voltage of the electrical power supply.
  • In the case of sodium vapor lamps, an autotransformer is often used to step up the voltage to the level required for the lamp to operate.
  • The use of an autotransformer can also lead to a lower power factor, which means that the electrical current may not be fully utilized and can result in increased power consumption and reduced efficiency.
  • To improve the power factor of the circuit, a capacitor can be added in parallel with the autotransformer.
  • The capacitor helps to compensate for the inductive reactance of the autotransformer, which can cause the current to lag behind the voltage.
  • By adding a capacitor, the reactive power can be offset, resulting in a higher power factor and more efficient use of electrical power.