水泵启动

铝厂电厂大容量水泵启动的探讨

Discussion on the start up of large capacity pump in power plant

时频分析法在高压水泵启动过程分析中的应用

Application of Time-Frequency Analysis Method to Start-up Process Analysis of High-Pressure Hydraulic Pump

水泵启动后不出水的原因分析及解决方案

Analysis on the Reasons of No Flow after the Pump Start and the Solutions

火电厂供水系统水泵启动水锤分析

Analysis of Pump Starting Water Hammer for Water Supply System in Thermal Power Plants

水消防系统采用全自动加压系统，取消了通常设置的破玻璃消防水泵启动按钮和其他系统的水泵启动装置。稳高压消防水系统的应用

All the fire control water was lifted by automatically started pumping system . The Application of Stable High-Pressure Fire Water System in Wuhan Petrochemical Plant

根据井下排水系统的运行原理展开研究和论证，制定了井下水位监控和水泵启动方案。

Second , it studied and demonstrated with the running principle of the underground drainage system , then formulated the underground water level monitoring and pump running program .

在水泵启动、停止或阀门快速开启和关闭时会造成流量的突然变化，系统的压力突变造成管道系统发生振荡。

In the pump to start , stop or fast opening and closing the valve when the flow rate will cause a sudden change in system pressure piping system caused by mutations occurring oscillation .

常规的高层建筑消防灭火系统存在许多的隐患：如水泵启动环节多、控制线路复杂、系统维护困难，因而系统可靠性偏低。

There lie many latent troubles in fire-fighting of routine high-rise buildings , for example , there are many steps in starting the water pumps , the control circuit is complex , the system maintenance difficult and thus the system reliability is low .

针对抽水蓄能机组换相操作、水泵启动过程及电动机运行工况所带来的特殊保护问题进行了分析，提出抽水蓄能发电机－变压器组特殊保护的配置，并给出了相应情况下微机保护算法。

This paper analyses the special protection problems which are induced by phase reversing operation , motor starting process and the pumping mode , presents some unique protective applications for pumped storage generator transformer units , and gives digital relaying algorithms in the same cases .

沿江取水泵站启动水锤分析

Analysis of Pump-Starting Water-Hammer in Source Pump-Station Nearby River

抽水蓄能电站可逆式机组水泵工况启动过渡过程浅析

Analysis of the Transient Process of Starting the Reversible Unit in Water Pump Condition in Pumped-storage Station

本文介绍了一种由太阳辐射强度控制光伏水泵系统启动和停止的自动控制器，并给出它的性能及线路特点。

Photovoltaic pump system , which is an important kind of solar energy applications , have tremendous social and economical advantages .

陈籍水泵在启动以前，泵壳和吸水管内必须先布满水，这是因为有空气存在的情况下，泵吸人口真空无法形成和保持。

B.water-filled Pump start before the pump casing and suction pipe must be full of water that is because of the presence of air vacuum pumping the population can not be formed and maintained .

小型PLC在实现精制水泵电机自启动功能的应用

Application of Small PLC for realizing automatic startup of fine water pump motor

水泵群控软启动技术的研究应用

Appliance of Technology of Bevy Flexible Startup in Pump

为了减小水泵电机的启动电流，减轻对电网形成的冲击，减小能耗，系统启动采用Y/Δ启动。

In order to reduce the start-up current of electrical motor of water pump , alleviate the impact on power net and reduce energy consumption , Y / Δ start is adopt .

水泵电控全压启动电压损失计算

Loss Calculation of Electric Control Full-voltage Startup Voltage of Water Pump

如果水泵断电或水泵启动过程中管路中不出现过高或过低水压，则水泵断电后数秒内可以重新启动；

The pump can be restarted after a power cut for several seconds if no too high or too low pressure occures in the piping .

为了节省成本，考虑到变频器的价格较贵，论文分析了循环变频软启动原理，采用一台变频器来控制三台水泵实现循环变频启动。

For saving costs , the paper made a detailed analysis of the principle of variable soft-start cycle , and proposed to control three pumps by one frequency converter . In order to manage a cycle frequency converter start .