Unbalance protection of fuseless, split-wye, grounded, shunt capacitor banks

Author

Horton, Randy ; Warren, Ted ; Fender, Karl ; Harry, Steven ; Gross, Charles A.

Author_Institution

Alabama Power Co., Birmingham, AL, USA

Volume

17

Issue

3

fYear

2002

fDate

7/1/2002 12:00:00 AM

Firstpage

698

Lastpage

701

Abstract

In recent years, a large number of electric utilities have been implementing fuseless split-wye grounded capacitor banks in lieu of the traditional externally fused bank. This change in philosophy has forced many protection engineers to research new methods of calculating the quantities needed to apply unbalance protection. This paper presents a novel method of calculating the unbalance current produced by fuseless capacitor unit failures as well as some general background information regarding fuseless split-wye grounded capacitor bank technology and unbalanced protection.

Keywords

earthing; power capacitors; power system protection; electric utilities; fuseless split-wye grounded shunt capacitor banks; power systems; protection engineers; unbalance current calculation; unbalance protection; Power capacitors; Power generation; Power generation economics; Power industry; Power system economics; Power system protection; Power system reliability; Reactive power; Shunt (electrical); Voltage;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2002.1022789

Filename

1022789