Protection Relay or Protective Relay is a device designed to trip a circuit breaker when a fault is detected as matter of fact it is designe to protect power system.

What is a Protection Relay? Protection relay is a smart device that receives inputs, compares them to set points, and provides outputs. Inputs can be current, voltage, resistance, or temperature. Outputs can include visual feedback in the form of indicator lights and/or an alphanumeric display, communications, control warnings, alarms, and turning power off and on.
Protection or Protective Relay eliminate unnecessary trips, isolate faults, protect motors and breakers, and provide system information to help you better manage your system

We differentiate Protection Relay types by function:
* Overcurrent relay
* Inverse Definite Minimum Time relay
* Distance relay/Impedance relay
* Differential relay
* Directional relay
* Synchronism check relay

How does Protection Relay works and what are the types by funtion you can see in video.

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Create: Hrvoje Čočić
Music: Strange precident from youtube music
Category: Education
Licence: Standard YouTube Licence

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