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Electrical Substations

Substation Protection

Protective Relay Frustrations

Solving misoperation with line parameter measurements BY WILL KNAPEK, OMICRON USA Between 80 to 90 percent of all power system faults involve ground. Many protective relaying schemes depend on ground distance protection to accurately sense and locate ground faults on multi-terminal sub-transmission...
Substation Technologies

Ethernet Cable Selection for Utilities

Electric utilities are constantly searching for the most efficient, reliable and cost-effective methods to deliver electricity to customers. A vision for accomplishing this is the migration of the electrical grid from a reliable, but inflexible system to the Smart Grid, which promises adaptability...

Power Transformers

Transformer Testing & Maintenance

Grounding Transformers Explained

By R. W. Hurst, Editor Grounding transformers are used to provide a path to ground for unbalanced load current and for fault currents on systems where a suitable ground is otherwise not available. Grounding transformers are normally constructed with one of the two configurations: Zig-Zag (Zn) with...
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Transformation

Reliable Energy-efficient Transformers

Reliable, Energy-efficient Transformers Are an Essential Part of Canada’s Electrical Infrastructure

The Canadian Transformer Industry: At-a-Glance
The Transformer industry is a vital component of our electrical system. Transformers allow the efficient transmission and distribution of power across grids, providing society with safe and reliable access to electricity. The Canadian Transformer industry is a large and growing market, contributing 36% of Canada’s total electrical manufacturing revenue.1
Electro-Federation Canada (EFC) represents leading electrical manufacturers that design, manufacture and market Power, Distribution and Dry-type Transformers, among other electrical equipment,...

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digital protective relays
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Power Outages in the United States

An Ounce of Prevention is Worth a Pound of Cure

Methodology for the maintenance program of high voltage substations

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Electricity Today T&D Magazine - Electrical Substations Special Issue. 2021.

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Electricity Today T&D Magazine - Substation Technologies Special Edition 2022

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Electrical Testing And Maintenance Handbook, Vol. 11