Automatic Power Factor Controller (APFC) is meant to provide balanced reactive power compensation in an electrical system through automatic switching of capacitor banks by Thyristor Switching, Contractor Switching or Hybrid Switching using Programmable Logic Controllers (PLC). High Transmission power consumers benefit largely owing to reduced KVA consumption and incentive/no penalty due to resultant better Power Factor. Indirectly, the consumer also contribute to the National cause of energy saving and also to reduce CO2 emissions