The channels connect 400 electric pumping stations.
这些渠道连接着400多座电灌站。
The safety reliability and system risk estimation formula of electric pumping system are established by means of the safety systematic engineering method.
按照安全系统工程法，建立了电泵系统的安全可靠度以及系统风险评价的量化公式。
A new structure of choosing electric motor for the pumping unit was recommended, and a model was built to calculate the day-power consumption.
提出一种新的抽油机电动机优化匹配选型方案，建立电动机模型计算日耗电量。
Optimizing the combination of pumping unit, electrical motor and electric cabinet can raise energy (power) efficiencies for oil Wells.
油井抽油机、电机、电控箱组合配置有利于节能(电能)。
The insulation faults are serious trouble in electric machines at pumping stations.
在泵站，电机的绝缘故障是一个突出的问题。
Water supply enterprise consumes much of electric energy in the city, and the quantity it consumes mainly depends on the pumps of pumping stations.
供水企业向来是城市的用电大户，其用电量主要体现在泵站水泵机组的电耗上。
The movement law and electric driving system are analyzed. Variable frequency technique used in the system is discussed and PLC is used for automatic control of the pumping unit.
分析了数控抽油机的运动规律及电力拖动系统，论述了变频调速技术在系统中的应用。应用可编程控制器(PLC)完成抽油系统的自动控制。
The influence of variable load on a beam pumping unit on the electric current, input power, efficiency and power factor of the electric motor is discussed, and relevant calculating formulae are given.
讨论了游梁抽油机的变动载荷对电动机的电流、输入功率、效率和功率因数的影响，给出了计算公式。
We used a wind turbine drive some electric pump. For every pump is staged connected with the wind turbine, so the system be called the staged-connected wind-electric water pumping.
采用风力发电机驱动多台潜水螺杆电泵的系统，由于每台电泵是逐步接入系统的，因此该系统被称为分级接入式风电泵水系统。
Theoretical basis for diagnosing well conditions with pumping unit electric power and its application effect are approached.
探讨了利用抽油机电功率对油井工况诊断的理论依据和应用效果。
A new intelligent controller of energy conservation in a pumping machine is designed out which can judge indirectly the flowing capacity downhole through detecting the power of the electric machine.
设计了一种新型智能抽油机节能控制器，通过检测电机的功率间接判断井下供液能力的大小。
A pumping unit dynamic theft prevention electric driving device.
一种抽油机动态防窃电拖动装置。
The airflow goes via air-draught channel into air-pumping tower, speeding it up. The high-speed airflow acts on blade wheel to drive electric generator set.
热空气沿山坡温室向上运动，并汇聚成有一定速度的气流，该气流经风道进入抽风高塔而被加速，然后作用于风轮叶片，风轮带动发电机发电。
And in order to make companies know situation of working of the electric submersible pumping system, we evaluated the risk rank of the electric submersible pumping system by evaluating-point approach.
结合风险评价理论，采用评点法对潜油电泵系统进行了风险等级划分，从而可以使企业预先掌握潜油电泵系统的运行状况。
Moreover it is beneficial to our society. This article analyzed faults of the electric submersible pumping system happening in application.
针对大庆地区潜油电泵系统在井下作业过程中出现的故障，按照系统故障分类法对系统中出现的故障进行了分析；
Moreover it is beneficial to our society. This article analyzed faults of the electric submersible pumping system happening in application.
针对大庆地区潜油电泵系统在井下作业过程中出现的故障，按照系统故障分类法对系统中出现的故障进行了分析；
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