Title :
Overcurrent protection of capacitors applied on industrial distribution systems
Author :
Mendis, S.R. ; Bishop, M.T. ; McCall, J.C. ; Hurst, W.M.
Author_Institution :
Cooper Power Syst., Franksville, WI, USA
Abstract :
The protection of power factor correction capacitors used to enhance electrical system efficiency is addressed. Different considerations in the selection of capacitor fuse applications and the philosophies behind them are reviewed. Individual and group fusing are discussed. Continuous current, transient current, fault current, tank rupture curve coordination, voltage on good capacitors during a fault, energy discharged into a failed unit, outrush current, and coordination with unbalance detection schemes are topics covered. Examples of actual applications of capacitors in industrial distribution systems are presented
Keywords :
distribution networks; fault currents; overcurrent protection; power capacitors; power factor correction; power system protection; transients; capacitor fuse; continuous current; electrical system efficiency; fault current; group fusing; industrial distribution systems; power factor correction capacitors; tank rupture curve coordination; transient current; unbalance detection schemes; ANSI standards; Furnaces; Fuses; Industrial plants; Power capacitors; Power harmonic filters; Power system harmonics; Power system protection; Reactive power; Voltage;
Journal_Title :
Industry Applications, IEEE Transactions on
