Relay’s role is very important in power grid and industrial automation.
Relay has the ability to control a current many times higher than the supply current, and is widely used in current applications with the following capabilities:
- Overload protection for motors and electrical circuits.
- Over current protection, differential protection, directional protection, distance protection….
- Ability to monitor insulation resistance for IT grounding system, detect grounding interruption.
- Set the delay time for Star-Triangle startup.
- Phase monitoring, phase loss, overvoltage, undervoltage, high frequency, low frequency protection..
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