Effective Analysis of Power Cost Reduction by Controlling Reactive Power Using a Synchronous Generator

Abstract

Maximum masses in modern electrical distribution systems are inductive. Examples consist of motors, transformers, gaseous tube light ballasts and induction furnaces. Inductive hundreds want a magnetic discipline to operate. Inductive masses require two sorts of contemporary: • operating power (kW) to perform the actual work of creating warmness, mild, motion, system output and so forth • Reactive power (kVAR) to preserve the magnetic area. Operating power consumes watts and may be examined on a wattmeter. it is measured in kilowatts (kW). Reactive strength doesn’t perform useful “paintings,” but circulates between the generator and the load. It locations a heavier drain on the energy source, in addition to on the energy source’s distribution gadget. Reactive electricity is measured in kilovolt-amperes-reactive (kVAR). Running energy and reactive electricity together make up obvious electricity and apparent electricity is measured in kilovolt-amperes (kVA).

According to the Indian Electricity Act, HT consumers should maintain a power factor of 0.90–0.99. Low power factor can lead to a penalty by the electricity board and if not maintained within three months can lead to disconnection of the electrical supply. There are many ways to correct power factors such as capacitor banks, Synchronous machines, and phase advancer FACTS devices. Operating the plant with low input cost is one of the top priorities for any manufacturing facility. Increasing specific energy costs can reduce profit margins. With the use of inductive load generation of reactive power is inevitable. This reactive power puts extra load on cables, transformers, and circuits. The case study below presents how the Chittor cement plant reduces reactive power and controls power factors by the synchronous generator.