Measuring and monitoring relays | cosPhi monitor, CPW-E12
Task
To monitor phase shifts when motors are underload in systems, a monitoring relay should switch off the system when the phase shift is detected in order to avoid damage.
Solution
The cosPhi monitor CPW-E12 is used to detect an underload. The response value and the response time are adjustable. It can also be used in conjunction with a frequency converter (frequency 2 to 200 Hz). The monitoring takes place through the detection of the phase shift between current and voltage. This phase angle shifts with the load on a motor.
- for the industrial control cabinet
- mounting on TH 35 mounting rail according to IEC 60715
- connection with screw terminals
Advantages
- adjustable response value
- adjustable response time
- can be used with frequency converters (2-200 Hz)
- fault memory (can be unlocked remotely)
- 1 x changeover relay