In the application of central air-conditioning, the technology of variable-frequency primary pump has been widely studied.
在中央空调的应用过程中，冷冻水一次泵变频技术得到了广泛的研究。
From the viewpoint of energy saving, the application of variable frequency technology in the secondary pump system was expounded and the energy consumption of variable frequency pump was analyzed.
从节能的角度，阐述了变频技术在二次泵变水量系统中的应用，对变频水泵的能耗进行了分析。
Now the novel linear motor of bidirectional pulse variable-frequency control is applied to drive the flow control pump successfully.
目前，设计的双向脉冲变频控制的直线电机已成功应用于计量泵的驱动器中。
A two-stage compression variable frequency air source heat pump (TV-ASHP) has been developed combining variable frequency technology with two-stage compression cycle.
将双级压缩和变频技术有机结合，提出一种适用于寒冷地区双级压缩变频空气源热泵系统。
Energy consumption of variable frequency drive pump are analyzed, and makes Suggestions about its suitable application.
详细分析了变频调速水泵的能耗，对如何合理应用变频调速水泵进行了探讨。
In the light of the pickup current of a submersible electric pump being too large when started at full pressure, a new variable frequency control system is developed.
针对电动潜油泵工频全压启动时存在启动电流过大等诸多问题，开发出新型电动潜油泵变频控制系统。
Simultaneously, it provides the method to determine the best pressure of header system and optimum frequency of variable frequency pump based on the special working condition.
同时，给出了在特定工况下，确定最佳母管压力和变频泵最佳频率的方法。
The high voltage variable frequency transformation of power plant's pump system of condensation water pump, condensation water booster pump is described briefly.
对发电厂的凝泵、凝升泵的高压变频改造进行了简要叙述，并对经济性试验的数据进行了定量分析。
The medium voltage variable-frequency controller is developed for the variable-frequency against the existing problem during application of submersible pump.
潜油电泵中压变频控制器是针对潜油电泵在应用中存在的问题而研制开发的变频调速控制装置。
And using the frequency variable adjusting speed technique to control the speed of benzole cooling pump automatically, to achieve the temperature stability of the benzole.
同时利用变频调速自动控制粗苯冷却泵的转速，实现粗苯温度的稳定。
The configuration and variable frequency adjusting speed of water circulation pump in city heat-supply system are introduced, and the effects of energy saving are analyzed.
对城市供热系统中循环水泵的配置及变频调速进行了介绍，分析了其节能效果。
Points for attention in the design and application of variable frequency and speed pump system have been proposed as well.
指出了变频调速泵送系统在设计和应用中的注意事项。
In the heat-supply system with distributed variable frequency pump, there exists a zero pressure difference, at which supply and return water pressures are equal.
分布式变频泵供热系统中存在零压差点，该点供回水压力相等。
At last, the variable frequency technology for LOX loading pump is presented.
最后介绍了用现代变频器实现加注泵调速的技术。
This of those includes description to the variations of the pump efficiency, motor efficiency and variable frequency drive (VFD) efficiency at the reduced load conditions.
这其中包括了对部分负荷下泵效率、电机效率和变频器效率变化的说明。
To this problem, the variable-frequency speed regulation and flow regulation split-ranging coordinated control of the centrifugal pump for energy saving is given.
离心泵的变频调速是目前广泛采用的流量调节方法，高效节能是其最大优点，但是当流量降低时，可能造成压头过低而影响后续流程。
A brief introduction of the variable frequency AC motor speed control features, pointed out that the centrifugal pump inverter transformation of the economy.
简单介绍了交流电动机的变频调速特点，指出采用变频器改造离心式水泵的经济性。
This paper introduces the application of 4.8mw variable frequency power supply of Fengguang brand in the water pump test system of Arak Machinery Plant in Iran.
本文介绍了风光牌4.8MW变频电源在伊朗阿拉克机械厂水泵测试系统的应用情况。
Motor loss takes a large proportion in total power of pump when variable frequency pump is used.
水泵变频时电动机损耗占水泵总功耗的比例较大。
Test bench through the use of Fengguang brand high-voltage variable frequency power supply to achieve the pump performance test function.
测试台通过采用风光牌高压变频电源实现了水泵性能测试功能。
Test bench through the use of Fengguang brand high-voltage variable frequency power supply to achieve the pump performance test function.
测试台通过采用风光牌高压变频电源实现了水泵性能测试功能。
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