What is Phase Failure?

Definition

The loss of one or more supply phases to a motor or drive, causing unbalanced operation and potential overheating. Phase failure detection is a standard protection feature in modern drives and motor protection relays.

Related Terms

Phase Loss

The complete absence of voltage on one phase of a three-phase supply due to a bl...

Motor Protection

Functions and devices that safeguard a motor from damage due to overcurrent, ove...

Drive Fault

An error condition detected by a drive's internal diagnostics that causes it to ...

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