Automatic power factor

This topic has been dealt with in detail.Please go through the posts in this forum.

Logical/Correct approach is to connect each motor(or other load) with a capacitor--for it to look like cosΦ=1

You pay minimum to Electricity Board {--SEB}-- SEB most unhappy that way:

And DG sees minimum load-- good for DG

MUKULMAHANT

DID YOU REALLY MEAN TO IMPLY THAT ONE SHOULD CONNECT A CAPACITOR TO EACH MOTOR, "(OR OTHER LOAD)". THE "OTHER" LOAD COULD WELL BE PURELY RESISTIVE , IN WHICH CASE, POWER FACTOR CORRECTION IS NOT REQUIRED.

DONZI

Power factor correction is large concept. Different methodoliges are adopted since the basic intention is to adjust the power factor by varying current or voltage. APFC can be done in thy feeders or it can be done in the Substation also. ie., in the Sending end (Bus Capacitor Bank) or near to load end (Feeder Capacitor Bank). The current in one phase will be sensed and used as refernce current to on/off the capacitor switch. The current range will be set in the control panel.

In the Manual Bus Capaciotr bank there will be a separate CB with CT. In case of low voltage then immediately the capacitor bank will be turned on Bus to maintain the voltage.

Regards,

N.Suresh