This paper proposes an injection current based three phase power flow method.
介绍了凸极无刷直流电动机转子位置检测的电流注入法。
Firstly, the existing methods of the three phase power measurement in the teaching materials are introduced. And then another three connection methods are suggested for three phase four wire circuits.
首先介绍了现有教材中已给出的三相电路功率的测量方法，进而提出了三相四线制三相电路功率测量的另三种接线方法。
The three phase system is more efficient in that for the same mechanical power a greater total electrical output is obtained.
三个阶段的系统，更有效，为同一机械动力更大的总电力输出表达式。
In this paper, we propose and discuss two new control methods for three phase shunt APFs: the sinusoidal line current control method and the instantaneous reactive power compensation control method.
本论文提出三相并联型有源滤波器的两种新的控制方法，即正弦波化控制和瞬时无功功率的控制方法。
Improved management of processing operations through the use of the Three-Phase 853 Digital SCR Power Controller, which provides real-time information on process parameters.
改进管理的加工业务通过三阶段使用- 853数字晶闸管功率控制器，可提供实时信息的工艺参数。
Among the three-phase power-factor correction circuits, the full decoupling circuit is especially suitable for high power fields because of its high input power and good electrical performance.
在三相功率因数校正电路中，全解耦型电路由于其输入功率大，电气性能较好等优势特别适用于大功率场合。
The three-phase CPU card power meter's technical condition is being introduced.
然后先容了本三相cpu卡预支费电能表所满足的技术条件。
Fit for various small machinery powered by three-phase power supply.
适用于使用三相电源的各类小型机械。
Primary electrical power is provided by two engine driven generators which supply three-phase, 115 volt 400 cycle alternating current.
主电力是由两个发动机驱动发电机供应三相，115伏400周期交流电。
Parameter test and load discharge can process at one time. It is controlled by CPU, and can automatically test three-phase voltage, current and power ETC.
参数检测和带载放电同时进行，单片机控制，可自动检测三相电压、电流、频率等参数。
Through analyzing the asymmetry about the power among three phase of the no-load experiments of the triphase asynchronous motor is designed.
通过对三相异步电动机空载实验中遇见的故障——三相相间功率的极大不对称性进行分析。
In this paper, based on the orthogonality of sine function, a detection approach of generalized reactive current suitable for both the single phase and three phase active power filters is presented.
本文根据正弦函数的正交特性，提出了一种既适用于单相也适用于三相有源电力滤波器的广义无功电流检测方法。
The equipment should be placed on the ground without violent vibration or on the working stage and connected in the power grid of 380v with three phase and four wire.
设备应放置在无剧烈振动的地面或工作台上，接入三相四线380v的电网。
Zero current transition (ZCT) topology of the single switch three phase boost power factor correction (PFC) rectifier is proposed.
提出了一种零电流开关结构的单开关管的三相升压功率因数校正整流器。
Of course, can also be equipped with DC motor, single-phase motor, synchronous motor and all kinds of three-phase asynchronous motor and other power sources.
当然也可以配直流电机、单相电机、同步电机及各类三相异步电机等动力源。
In this paper, principle of design and study of three-phase induction motor power measuring device is discussed in theory and practice.
本文从理论和实践方面探讨了矿用三相异步电机功率测量装置的设计及研制原理。
The binding methods of yokes in three-phase power transformer cores and their merits and demerits are introduced. The general tightening device is analyzed briefly.
介绍了三相油浸式电力变压器铁心铁轭的绑扎方式及其优缺点，并对常见的拉紧装置作了简要分析。
A new control method for the three-phase aeronautical active power filter was proposed.
提出了一种新型三相航空有源电力滤波器的控制方法。
The working principle, principal block diagram, and the detecting records of the three-phase power converter are also analysed in this article.
本文还对三相功率变换器的工作原理、原理框图以及检测数据进行了分析。
The characteristic and application conditions of three-phase ac intelligent thyristor power module (ITPM) and load characteristic of klystron are presented.
简要叙述了三相交流晶闸管智能模块(ITPM)的性能特点、应用情况以及速调管的负载特性。
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.
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。
Based on the decoupling of fundamental power flow and harmonic power flow, a separate iteration method for calculating three-phase asymmetrical harmonic power flow in power system is presented.
以基波潮流和谐波潮流的解耦性为基础，提出了一种将电力系统三相不对称基波潮流和谐波潮流分离迭代的计算方法。
This paper introduces the trouble shooting methods for the coil short of miniature three-phase power transformer, and points out some notable matters in the test.
介绍了小型三相电力变压器线圈短路故障查找的方法和试验时的注意事项。
Especially three-phase four-wire active power filter hardware has simple structure with only three group switch device.
特别是三相四线制有源电力滤波器硬件结构简单，只有三组开关器件。
The single-phase harmonic current components can also be detected by the method effectively through constructing a dummy symmetry three-phase power system.
通过构造一个虚拟的三相对称系统，该检测方法可以推广到单相电力系统的谐波电流检测。
The operation of unbalanced three-phase loads of distribution network will increase power loss.
配电网三相负荷不平衡运行将增加配电网的电能损耗。
Three phase wiring saves 50% of power compared with one-phase.
三相电源比单相电源可省电逾50%之多。
It is necessary to design the monitoring system of high-power three-phase inverter to improve its levels of safety, reliability, control and automation.
为了提高大功率三相逆变电源系统运行的安全性、可靠性、可控性和自动化程度，设计其监控系统是必要的。
It is necessary to design the monitoring system of high-power three-phase inverter to improve its levels of safety, reliability, control and automation.
为了提高大功率三相逆变电源系统运行的安全性、可靠性、可控性和自动化程度，设计其监控系统是必要的。
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