SPFC REACTIVE POWER COMPENSATION UNITS:
Compensation is done with an auto controlled system which includes stepped capacitor banks. SPFC automatically keeps the power factor within the close limits around a selected level. Capacitors taken into operation with the help of contactors. Thus the size of the compensation unit can be increased or decreased according to the requirement.
An automatic power factor regulator monitors the power factor of the system with the help of necessary devices like current transformers and gives the decision to close and open the necessary contactors to maintain a constant power factor within the tolerance .
System consists of :
-Capacitor banks with appropriate ratings and number of steps which are designed according to the client's requirements or can be determined by our technical team according to the recorded data supplied by the client with a powermeter.
-Contactors: On SPFC Reactive Power Compensation Units, specially designed Capacitor Duty Contactors are used to avoid from the high inrush currents.
- Automatic power factor regulator: The reactive energy regulator which is used on SPFC, is the only regulator in the market that offers the possibility of using 3 measuring transformers in addition to the traditional method of measuring with a single current transformer, as well as providing the functions of an integral power analyzer and controlling the residual leakage currents. it can adapt to any compensation need (different time periods)
RPFC REALTIME REACTIVE POWER COMPENSATION UNITS:
RPFC is an automatic realtime power compensation unit in which thyristors(SCR) are used to switch instead of the contactors. This is mostly appropriate where there are equipments with fast cycle or sensitive against transient surges.
Some advantages of RPFC units are:
-Very fast, almost immediate response against power factor fluctuation .
-No transient phenomena on the system which can happen on capacitor switching.