Question
Download Solution PDFWhich of the following devices protects a motor from receiving wrong voltage levels?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF- A phase sequence detector protects a motor from receiving wrong voltage levels.
- The phase-sequence detector or phase-sequence checker for a three-phase supply is a device used for testing the three-phase sequence of supply in an electrical circuit or at the input of the electrical motors such as a three-phase induction motor, a three- phase-energy meter, etc.
- The control of the motor operation happens in such a way that the protection circuit switches off the motor during under-voltage and overload conditions and corrects the phase sequence during phase reversal conditions.
- There are generally two types of the phase sequence detector
1. Static type phase sequence detector
2. Rotating type phase sequence detector
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