A review on testing and evaluating substation grounding systems

Author

Pillai, P.R. ; Dick, E.P.

Author_Institution

Ontario Hydro, Toronto, Ont., Canada

Volume

7

Issue

1

fYear

1992

fDate

1/1/1992 12:00:00 AM

Firstpage

53

Lastpage

61

Abstract

A systematic approach of testing and modeling grounding system performance of large multi-grounded power stations is described. Simple and detailed test methods using 65-70 Hz current injection are explained. A simple model including distribution neutrals and shielding factors has been developed to validate measurements and is based on hand calculations. The testing and modeling procedure has been successfully used at more than 20 Ontario Hydro stations spanning a period of more than a decade. Results at one transformer substation are presented as an example

Keywords

distribution networks; earthing; power stations; power system protection; testing; transformer substations; 65 to 70 Hz; Canada; current injection; distribution neutrals; measurements; modeling; performance; power stations; power system protection; shielding factors; substation grounding; testing; transformer; Cables; Circuit faults; Grounding; Power measurement; Power system measurements; Power system modeling; Power system protection; Substations; System performance; System testing;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.108889

Filename

108889