A review on testing and evaluating substation grounding systems

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...

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Bibliographic Details
Published in:IEEE transactions on power delivery 1992-01, Vol.7 (1), p.53-61
Main Authors: Pillai, P.R., Dick, E.P.
Format: Article
Language:English
Subjects:
Applied sciences
Cables
Circuit faults
Electrical engineering. Electrical power engineering
Electrical power engineering
Engineering
Engineering, Electrical & Electronic
Exact sciences and technology
Grounding
Power measurement
Power networks and lines
Power system measurements
Power system modeling
Power system protection
Science & Technology
Substations
System performance
System testing
Technology
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Description
Summary: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.< >
ISSN:0885-8977
1937-4208
DOI:10.1109/61.108889