Differential Relay

Differential Relay

A differential relay is a protective device that is fed by current transformers located at two different series points in the electrical system. The differential relay compares the currents and picks up when there is a difference in the two, which signifies a fault in the zone of protection. These devices are typically used to protect windings in generators or transformers.

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Part of Speech: noun
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Industry/Domain: Electrical equipment
Category: Generators
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