The power supply of sub-control box is forbid to link directly from pump phase line, if needs to supplied from pump house, the isolate transformer and isolate line should be build up.
场地分控箱供电禁止直接从泵站相线上搭接，如果需要从泵房供电，必须安装隔离变压器和隔离线路，因为场地分控箱处于雷电的威胁下。
With S7-300 PLC as the main controller, has designed a modular pump house drainage control system.
设计了以S7 - 300 PLC为主要控制器的模块化泵房排水控制系统。
The application of PLC in automatic control of pump house in tank farm is introduced.
介绍了油库实时监控系统的系统配置、应用软件构成及功能。
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