使用元件必须配备调压变压器或可控硅调压器及电压、电流表和温度自动控制仪表等。
To use the elements you should prepare the adjustable transformer or silicon controlled transformer voltage meter current meter and autocontrol temperature meter etc.
当电网电压和频率的变化时，分析了电动机、变压器、控制及保护系统、照明系统、通信导航设备等受电器工作的可靠性。
When the variation of bus-bar voltage and frequency occurs, the reliability of electric motors, transformers, control and protection system is analyzed in this thesis.
控制以及测量用补助电压变压器。
九域图原理是电压无功控制的成熟理论，但在处理三绕组变压器时有一定的难度。
The nine-zone graph theory is widely recognized in reactive power optimization but hard to deal with three-coil transformers.
介绍一种采用低压电压型变频器、正弦波滤波器和变频升压变压器构成的低-高式中压变频控制系统。
A kind of medium voltage AC variable frequency control system, which consists of voltage source inverter, sinuous filter and stepup transformer with variable frequency, is introduced.
本文从电压无功综合控制的基本原理出发，说明了变压器分接头的调节与并联电容器投入容量的大小对电网电压的影响。
The basic theory for voltage and reactive control and the taps changed in transformer and shunt capacitor switched affect the voltage value are discussed in the paper.
大多数商业使用多个抽头的变压器开关稳压器在不加控制的时间继电器水龙头，从而产生电压尖峰！
Most commercial voltage regulators using multiple-tapped transformers switch taps with relays at uncontrolled times, thereby creating voltage spikes!
为解决动态电压调节器(DVR)研制中的一类关键问题——耦合变压器激磁涌流问题，对DVR的控制策略进行了研究。
Inrush current is a major problem in the coupled transformer of a dynamic voltage regulator (DVR).
该系统控制策略以九区图为基础，并且在容易引起频繁动作的边界上采用人工神经网络预测变压器分接头调节和电容器投切后的电压无功，以决定采用何种控制方式。
The control strategy is based on nine-zone diagram and combined with artificial neural network, which makes a decision about the change of transformer taps and capacitor switching.
一个交流的权力中心由一个可控硅功率控制器或控制器的外壳，包装一或无电压匹配变压器。
An ac power center consists of a SCR power controller or controllers, packaged in an enclosure with or without voltage matching transformers.
通过DSP作为控制器，利用补偿变压器输出可以正负补偿的电压与电网串联，从而实现输出稳定的交流电压。
In this regulator system, a DSP controls bi-directional IGBT triggered and turn-off at zero-crossing to control different combination of secondary coil and realize AC voltage stabilization.
后接升压变压器，对其输出高电压进行调压-稳压控制。
Regulating the primary to voltage of a low voltage high current transformer . by which the output current can be regulated and stabilized .
适当增大逆变器输出滤波电感，合理选择串联变压器原副方变比，或采用电压前馈控制技术为改善其滤波效果的三条有效措施。
Then, the filtering characteristic of the active power filter is analyzed. Three measures which can improve the filtering effect are gained: augmenting the filtering inductance properly;
适当增大逆变器输出滤波电感，合理选择串联变压器原副方变比，或采用电压前馈控制技术为改善其滤波效果的三条有效措施。
Then, the filtering characteristic of the active power filter is analyzed. Three measures which can improve the filtering effect are gained: augmenting the filtering inductance properly;
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