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An overvoltage relay is a protective device designed to monitor the voltage level in an electrical system. It operates by continuously comparing the measured voltage against a predetermined threshold. When the voltage exceeds this threshold, the relay activates, typically by opening a circuit or triggering an alarm, to prevent damage to equipment from excessive voltage. This ensures system safety and helps maintain operational integrity by disconnecting or alerting operators to the overvoltage condition.

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1mo ago

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