Impact of utility switched capacitors on customer systems-magnification at low voltage capacitors

Author

McGranaghan, M.F. ; Zavadil, R.M. ; Hensley, G. ; Singh, T. ; Samotyj, M.

Author_Institution

Electrotek Concepts Inc., Knoxville, TN, USA

Volume

7

Issue

2

fYear

1992

fDate

4/1/1992 12:00:00 AM

Firstpage

862

Lastpage

868

Abstract

An analysis is made of the potential for magnified transient voltages at customer buses during capacitor switching on the primary distribution system. The various factors affecting this phenomena are analyzed in detail through extensive sensitivity analysis simulations. These factors include the switched capacitor size, short-circuit capacity at the switched capacitor, customer step-down transformer size, low-voltage power factor correction, and customer load characteristics. The impact of these transients on customer equipment are described, and possible solutions to control the transients are presented

Keywords

distribution networks; power capacitors; power factor correction; sensitivity analysis; short-circuit currents; switching; transients; customer load characteristics; customer step-down transformer size; customer systems; low voltage capacitors; low-voltage power factor correction; magnified transient voltages; primary distribution system; sensitivity analysis simulations; short-circuit capacity; utility switched capacitors; Circuit simulation; EMTP; Low voltage; Power capacitors; Power factor correction; Power system transients; Surges; Switched capacitor circuits; Switching circuits; Transient analysis;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.127091

Filename

127091