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What is a relay node?
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What is the difference between a relay and a multiplexer?

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What is the function of a Buchholz relay in transformer protection?

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What is the purpose of a relay in electrical circuits?

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What is the purpose of a phase rotation relay in three-phase electrical systems?

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How does a voltage dependent directional overcurrent relay determine fault direction?

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What is the purpose of a voltage restrained overcurrent relay?

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What is the function of a synchronism check relay in circuit breaker closing?

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What is the purpose of a voltage controlled directional overcurrent relay?

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How does a voltage polarized directional overcurrent relay determine fault direction?

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What is the function of a rate of change of power (dp/dt) relay?

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How does a voltage dependent overcurrent relay adapt to system conditions?

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What is the function of a thermal overload relay in motor protection?

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How does a multi-function numerical relay differ from traditional electromechanical relays?

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What is the function of a voltage restraint overcurrent relay?

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How does a percentage differential relay provide stability during through faults?

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How does a rate of change of voltage (dv/dt) relay operate?

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How does a vector shift relay detect islanding conditions?

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What is the function of a check synchronizing relay?

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How does a restricted earth fault (REF) relay protect transformer windings?

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How does a voltage controlled overcurrent relay operate?

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How does a voltage balance relay detect broken conductor faults?

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What is the function of a reclosing relay in distribution systems?

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How does a voltage regulating relay maintain system voltage?

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How does a reverse power relay protect against motoring conditions?

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How does a rate-of-change of frequency (ROCOF) relay work?

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How does a directional overcurrent relay determine fault direction?

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What is the function of a lockout relay in protection schemes?

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What is the purpose of a rate of change of frequency (ROCOF) relay?

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How does a digital protective relay differ from an electromechanical relay?

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What is the purpose of a Buchholz relay in transformer protection?
Answer : A Buchholz relay is a protective device used in transformers, primarily for detecting faults like gas accumulation and oil movement inside the transformer tank. It's a vital safety feature that ... or oil movement), helping to prevent bigger problems and ensuring the transformer operates safely....

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Describe the construction and operation of the Buchholz relay with a neat labeled diagram.

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Describe the operation of a current differential relay with a neat sketch.

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Draw a typical time-current characteristic for IDMT relay.

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