查询词典 alternating current power supply

For example: a 12V AC power supply has an alternating voltage (which will make an alternating current flow).

AV 的电源提供一个交流电压(将产生一个交流电流流动)。

First, this paper briefly presented the construction of the software and hardware system of the ATE8000- 1 integrated test stand, and the monitoring circuit designs of alternating current power supply used voltage for this test stand.

文中首先简要介绍了ATE8000-1综合测试台系统的软硬件结构和总体方案，设计出了该测试台交流电源输出电压的监控电路。

Data communication ; IDC Internet data center ; Alternating UPS ; High voltage direct current UPS power supply system

数据通信； IDC互联网数据中心；交流UPS供电系统；高压直流UPS供电系统

On the railway of electrization, power supply mode is requested to be the single-phase alternating current.

在铁道电气化牵引区段，牵引供电网采用单相工频交流电供电方式。

Under this direction, we developed a kind of inverter power supply, and the parameters are as follows:(1)the input of three-phase alternating current;(2)the output of sinusoidal wave;(3)the frequency of output: 5-25 kHz, which can be adjusted;(4)the voltage of output: 5-20 kV, which can be adjusted.

根据这个特点，我们研制了一种高频、高压的大功率逆变电源，参数如下：(1)三相交流输入；(2)输出正弦波；(3)输出频率：5～25kHz，可调；(4)输出电压5～20kV，可调。

To control speeds for a typical alternating current motor, we usually take control variables (to change voltage and frequency of the stator power supply) from the stator side in an electric motor, which is also the only way for squirrel-cage asynchronous motor with rotor in a short-circuit state.

对于一般交流电动机的调速，我们都是从电动机的定子侧引入控制变量（改变定子供电电压、频率）来实现的，这对于转子处于短路状态的交流鼠笼型转子异步电动机是唯一途径。

To control speeds for a typical alternating current motor we usually take control variables (to change voltage and frequency of the stator power supply) from the stator side in an electric motor which is also the only way for squirrel-cage asynchronous motor with rotor in a short-circuit state.

对于一般交流电动机的调速，我们都是从电动机的定子侧引入控制变量（改变定子供电电压、频率）来实现的，这对于转子处于短路状态的交。。。

The socket structure is provided with a zero phase trigger control unit, through the photoelectric sensing element of the unit, optical coupling can be performed to generate zero phase trigger, and the opening or the closing of a two-way thyratron in the zero phase can be accurately controlled, therefore, an electric device inserted on an output socket can be started or stopped from the zero phase, in order to reduce the electromagnetic interference and prolong the service life of the electric device, the use efficiency of the electric device can be enhanced, the power supply thereof can be saved, filtering and rectifying can be performed through a current switching unit when the alternating current power supply passes through a filtering and rectifying circuit, the noise caused by external interference and affect can be filtered, and the power supply can be respectively transmitted to a current detecting socket and the input end of the current switching unit to be detected through a temperature sensor arranged on the current switching unit.

本实用新型为有关一种插座结构，尤指为设有零相位触发控制单元，可通过其光电感测元件来进行光耦合而产生零相位的触发，且可准确控制双向闸流阀在零相位的开启或者关闭，进而达到插置于输出插座上的电器装置从零相位开始启动或者关闭，以降低电磁干扰而延长电器装置使用寿命，且可提升电器装置的使用效率及节省电源，并通过电流转换单元于交流电源通过滤波整流电路进行滤波整流，可滤除外部所干扰影响的杂讯，并分别传送至电流侦测插座及电流转换单元的输入端，而可通过电流转换单元所设置的温度感应器来进行侦测，于电路温度升高时，温度感应器可进行切断双向闸流阀的电源输出而达到保护输出插座上所插设的电器设备。

A capacitance interference model of three-pulse alternating current power supply on signal wire is established.

建立了矿井电器三相交流电对测控信号线的电容性干扰模型，用复数运算法计算了稳态情况下的干扰电压，分析了布线位置对干扰的影响，并将结果推广到尖峰脉冲群下的供电线路，得出的微机测控信号线布线位置与干扰电压的关系对设计测控微机提供了基础。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。