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Electrical Substations




Physical Security & Monitoring

Animal Mitigation for Electric Utilities

Prevent animal- and bird-caused outages to improve reliability BY MARTY NILES, Cantega Technologies Utilities in North America are under enormous pressure from regulators, customers, and investors to improve reliability performance. Many of the mergers and acquisitions of utilities around North...

Power Transformers


Transformer Testing & Maintenance

How to Improve Transformer Protection

Using symmetrical components for fault discrimination in differential protection BY IMRAN RIZVI, ABB Inc. Classical differential protection schemes are subject to ghost differential currents due to current transformer (CT) saturation and magnetization currents. Several methods are used to counter...


Transformation

transformer oil

Leakers, What a Mess!

Electric Substation apparatus, transformers and circuit breakers, are the workhorses of the electric transmission grid. Our focus in this article is on the issue of dielectric media leaks. Specifically, oil in large power transformers and oil or SF6 gas in power circuit breakers. Oil and gas leaks both have their share of risks to the environment.
Financial control is playing a big part in the management of the assets in today’s electric utilities. The repair...

Transformation Articles