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 standby pump 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。
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 standby pump at fire-fighting pump station, t…
文章总结了消防给水系统和泡沫灭火系统的设计原则，同时指出了消防泵房布置设计和消防水池设置的基本要求。
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.
阐述了利用PL C实现一台软启动器控制两组两用一备水泵电机的软启、软停的控制方式，并对运行过程进行了分析。
The new method proposes that the electric pump assume the duty of normal operations, emergency-standby and water supply for boiler MFT. It reduces the utilization of electric pump.
通过对汽动给水泵的改进，电动给水泵只承担正常运行时事故备用和锅炉MFT后锅炉上水，电动给水泵利用率非常低。
The new method proposes that the electric pump assume the duty of normal operations, emergency-standby and water supply for boiler MFT. It reduces the utilization of electric pump.
通过对汽动给水泵的改进，电动给水泵只承担正常运行时事故备用和锅炉MFT后锅炉上水，电动给水泵利用率非常低。
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