A Phase Failure Relay is a protection device used in three-phase electrical systems to detect one or more phase losses (failures).
When a phase fails, equipment such as motors might overheat (or) get damaged as a result of imbalanced current.
The relay checks the presence, sequence, & voltage levels of all three phases, and if an abnormality is detected, it trips the circuit or sounds an alert, preventing equipment damage and maintaining operational safety.
Protects against Phase Loss
Prevents damage to motors & equipment caused by missing phases.
Monitors Phase Sequence
Monitors phase sequence for correct motor rotation and prevents reverse rotation difficulties.
Detects Voltage Imbalance
Maintains equipment efficiency and prevents overheating by detecting voltage imbalances.
Guards against Voltage Fluctuations
Protects systems from overvoltage & undervoltage.
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