What is a Protection relay?

A protection relay is a relay designed to detect abnormalities in electrical equipment or power systems and protect the equipment before any damage or failure occurs. It monitors abnormal conditions such as overcurrent, overvoltage, overload, and short circuits, and when an abnormality is detected, it activates the pre-configured circuit to automatically stop the equipment. This helps prevent equipment damage and ensures the stability of the power system. Protection relays are widely used in power plants, substations, and other locations handling electrical power.

Application of Protection relay

✅Power plant protection
Installed on power equipment such as generators and transformers to detect overcurrent or short circuits and protect the equipment.
✅Power transmission lines
When an anomaly occurs during power transmission, the relay quickly disconnects the transmission network to prevent accidents.
✅Industrial equipment
Installed on high-voltage equipment or electric pumps in factories to detect overloads or overvoltage, protecting the machinery.

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