三相交流电源

一种基于TCR的单相变三相交流电源装置

Single / Three-Phase AC Power Source Device Based on Thyristor Controlled Reactor

在介绍电机结构的基础上，深入分析了SCLRM在三相交流电源下的自激换流工作原理。

On the basis of introducing the motor structure , the self-exciting converting principle of SCLRM under three-phase AC supply is described .

采用三相交流电源的低功耗绝热时序电路

Low-Power Adiabatic Flip-flops and Sequential Circuits Using Three-Phase AC Power Supply

精密对称三相交流电源自控伺服系统

Automatic Servo System of the Precision Symmetric Three-phase AC Power Supply

一种高精度三相交流电源的混合集成设计

The Design of Hybrid Integration of High Precision Three-Phase Alternating Power Supply

导引头陀螺精密三相交流电源研究

Three-Phase Precision AC Power Supply of Seeker Gyro

三相交流电源自动调相及断相保护控制系统设计

The design of automatic control system for phase order adjustment and phase-failure protection of three phase alternating current

本文介绍一种带有中间直流环节的频率可调简易三相交流电源装置。

The article introduces simple 3 - phase AC power system with a medium DC link of frequency variable .

军事和工业供电系统多采用三相交流电源，三相交流电路系统中有很多电机工作。

The tri-phase AC power is used by military and industry supply system , where a lot of motors work .

三相交流电源的相序对于某些用电设备有直接的影响，那么在某些用电场合，应要事先测定出电源的相序。

Phaes order of three phase alternating current has direct effects on some electrical appliances , so it is necessary to determine it beforehand .

本系列发电机适用于乡村、镇、地、区及牧区等照明及动力的三相交流电源。

The generators are to be user in town 、 the countryside 、 workersites 、 mountain districts and pasture lands as a electric power source for lighting purpose .

介绍了一种三相交流电源相序指示与控制器，给出了控制器的控制方法及电路图，分析了电路的工作原理。

This paper presents the techniques to detect and control the phase sequence for 3 phases AC power source , provides intact hardware circuit diagram and operation principle .

介绍了一个主要由峰值检波器和脉冲宽度鉴别器构成的三相交流电源缺相保护电路。

This paper introduces a kind of electric circuit which mainly consists of a peak detector and a pulse-width discriminator for protecting the three-phase alternating-current supply with loses a phase .

因此，研究如何把电气化铁路牵引网上具有电压波动较大、谐波含量丰富等特征的单相交流电源变换成电压较为稳定、谐波含量符合要求、对称的三相交流电源具有十分重要的意义。

So there is a point to research how to translate this kind of power source into three-phase AC source with stable voltage , low proportion of harmonic wave and symmetry three-phase power source .

三相交流稳压电源的微机控制系统

The Control System for a Three-phase AC Regulator

三相交流精密电源的研制

Development of 3-Phase AC Precision Power Supply

本文对方波电源的现状及特点作了论述，同时对HobartCW-300S三相交流方波电源的艺性能进行了测试分析。

In this paper , the present condition and the features of squre-wave arc welding power source are described ; the welding technological performance of Hobart ′ s CW-300S three phase square-wave AC arc welding power source is tested and analyzed .

新颖性–该系统具有一个脉宽调制（PWM）转换器模块，将发电模块输出的三相交流（AC）电源转换成直流（DC）电源。

NOVELTY-The system has a pulse width modulation ( PWM ) converter module converting three phase alternating current ( AC ) power outputted from a generator module to a direct current ( DC ) power .

三相交流方波弧焊电源的分析

The Analysis of the AC Square Wave Current Welding Power Source with 3 Phase Power Input

三相交流稳压器具有稳定电源之功能，故电源品质的稳定是一个重要的课题。

Many analog systems need a stable power supply voltage that does not vary with temperature and time in order to operate properly .

三相逆变器作为交流供电电源的主要部分，广泛地应用于电动车、电力设备、产业设备、交通车辆等领域。

As an important part of AC power supply , three phase inverter is widely used in areas like electric vehicles , power instruments , industrial instruments and transportation systems .

三相同步发电机作为三相工业频率的交流电源，研究其有功功率调节具有重要意义。

It 's significant to study the regulation of active power of three-phase synchronous generator by way of the alternating power source of three-phase industrial frequency .

然而频繁出现因为电源不平衡导致整个系统工作不正常，经常发生电机烧毁和不能按预定程序动作，所以在三相供电系统中往往要求有三相交流电源保护装置。

But the imbalance of power system often leads to the whole system works badly , and the motor even be destroyed and do not work according to the pre-program . So the tri-phase AC power safeguard equipment is demanded in the tri-phase AC power supply system .