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Feed pump­ monitoring

The feed pump at a natural gas fuel station must be monitored for dry running. If no LNG is being pumped, the pump must be switched off
Industry:
Pumps and compressors
Series/Measures
cos phi
Product:
G2CU400V10AL10
Data sheet:
Task:
The feed pump at a natural gas fuel station must be monitored for dry running. If no LNG is being pumped, the pump must be switched off.

Solution
After the startup phase, the G2CU400V12AL10 starts monitoring the cos phi. When the pump is running dry, the cos phi falls below the threshold, and the monitoring relay issues a fault message.
Use/value:
- The cos phi monitor is suitable for use with frequency converters
- The monitoring takes place in the switch cabinet without additional sensors
- No high-maintenance external monitoring components are needed

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