What are the application of Under voltage release
Under voltage release
Under voltage release provides tripping the circuit breaker if the input voltage (phase or line) drops below 70% of the rated value. Also, it prevents the circuit breaker from closure if the voltage is below 85% of the rated value. The main purpose of the under voltage release is to de-energize electric equipment in case of impermissible reduction of voltage. Also, the release can be used as shunt release if a push button (NC) is connected in series with the circuit controlling the release. On short opening of the push-button contacts the release will trip the circuit breaker.
Under voltage relay
A relay that has contacts that operate when the voltage drops below a set voltage. Under voltage relays are used for protection against voltage drops, to detect short-circuit faults,and more.
Under voltage coil
- An Under Voltage coil is used to remotely trip a circuit breaker and some switch dis connectors.
- An Under Voltage coil has to have a voltage applied to it to enable the device to close, and have the supply removed from it to trip the device.
- An example of an application for an Under Voltage coil would be for emergency stop or load shedding.
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