Determine the Optimal Level of Compensation
Requirement of KVAr
Determine the amount of kVAr required for compensation to achieve the target power factor.
The change of voltage and current wave forms of each load. This was done by adopting a simple calculation procedure with the load expressed in kW and the desired power factor.
Selection of Capacitor Bank
Choose the capacitor bank of the correct size that would be able to supply the needed kVAr compensation.
Choose the Compensation Method
For export compensation, the capacitor bank must be connected at the main LV distribution board. This minimizes on tariff penalties as well as apparent power demand.
For compensation by sector, it recommended to install capacitor banks at each local distribution board. This helps in minimizing losses in the feeder cables as well as enable a reduction in the cable size.
In the case of individual compensation, capacitors are installed directly on the terminals of inductive loads such as motor. This minimises cable sizes and losses.
Install the Compensator
It is advisable to install the capacitor bank enclosure in the mentioned location with the provision of proper air circulation and insulation.
Step-1: Screw the capacitor bank onto the bus-bar section of the main/local distribution board or any bus-bar control section using proper sized cables.
Step-2: Mount suitable protection devices including the contactors, fuses and the discharge resistors so as to protect the capacitors.
Step-3: So connect the capacitor bank to power factor regulator for its automatic operation. Give the regulator voltage signals and current signals.
Step-4: Connect as per the connection diagram do the wiring of circuits like control circuits of contactors and so on.
Step-5: Compensate the system by carrying out the tests of the capacitor bank in operation and confirming variation in the power factor.
With the help of these instructions, installation of a kVAr compensator will allow for the correction of the power factor and the further stabilization of the electricity supply.
There may be certain aspects regarding installation of this type of roof that are unique to the manufacturer, which is why it’s important to consult the instructions.