Procedure and programme for power capacitor design for shunt compensation and power factor improvement

摘要

The paper presents the procedure for finding out required amount of capacitance to be connected to the end-points of a transmission line for shunt compensation and at load-terminal of a feeder for p.f. improvement. It also gives the procedure for designing the capacitors to meet all the specifications, without violating any constraint, in a most economic way. The construction uses aluminium foils with impregnated paper dielectric pressed in between wound on a mandrel. Each unit has been split into a no. of sections. A no. of units has been placed in parallel for the facility of switching in and out with variation in load. It is an economic way to improve the power factor, and reduce voltage regulation. It also reduces line losses and saves in tariff.