If any of return sludge pumps is in off mode, it will be regarded as standby unit. If fault is found on duty pump, the standbypump will be automatically change over.
没有启动的污泥回流泵作为备用泵，如主泵发生故障，备用泵自动切入。
2
Pointed out are the basic demands of fire-fighting pump station design and fire-fighting water pool setting. Analysis is made on setting principles of standbypump at fire-fighting pump station, t…
To explicate the softstart and softstop, the control way of PLC achieve a softstarter controls two teams two uses a standby water pump motor, and analyze operation process.