Phase sequence and phase loss sensor, with adjustable lower and upper voltage threshold CKF-318

Phase sequence and phase loss sensor. Without neutral wire.
Destiny

The CKF-318 phase sequence and phase loss sensor is designed to protect electric motors powered from a 3 × 400 V three-phase network (without the neutral wire).
Implemented security functions:
- voltage asymmetry between phases
- complete phase loss
- symmetrical voltage drop in three phases
- phase sequence change
- exceeding the upper phase voltage threshold> 480 V
- exceeding the lower phase voltage threshold <320 V

Action
When the mains voltage conditions are correct, the sensor contacts are closed. In the event of voltage anomalies, the sensor disconnects the contacts with an appropriate time delay. The return of the network parameters to normal