relay

Abstract

The application discloses a relay, which comprises a shell, an internal component, a coil assembly, an exciter and a monitoring control assembly. The internal component is configured to switch the relay between a closed state and an open state in response to an input signal. The coil assembly is used to drive the internal component to move. The exciter is configured to generate a gas impact force when the exciter is activated, and the gas impact force is used to drive the internal component to move, so that the relay is switched from the closed state to the open state. The monitoring control assembly is electrically connected with the coil assembly and the exciter, and is configured to monitor a current value passing through the internal component, and control the coil assembly to be powered off or the exciter to be activated according to a comparison result of the current value with a first threshold value and a second threshold value. The first threshold value is smaller than the second threshold value. When the current value is greater than or equal to the first threshold value and smaller than the second threshold value, the monitoring control assembly controls the coil assembly to be powered off. When the current value is greater than or equal to the second threshold value, the monitoring control assembly activates the exciter.

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