这对行波压电电动机的设计和测试具有很重要的意义。
It has some significance for designing and testing of traveling wave piezoelectric motors.
介绍了一种基于尺蠖运动原理的纳米级步距压电电动机，提出了一种新型的压电陶瓷驱动电源，并给出了详细的电路原理图。
A kind of piezoelectric motor with nano-step, based on the principle of inchworm motion, is introduced in this paper, then a newly developed driving power is presented in detail.
在实践的基础上，分析了低压电动机控制回路不装熔断器的危害性，及其装设熔断器的必要性。
On the practical base, the article analyzes endanger of low-voltage motor control circuit without fuse and necessary of fitting the fuse in the circuit.
尤其对发电机、变压器、高压电动机、电压互感器、开关、电容式电压互感器、电流互感器等一次设备有深入的了解。
In particular, the generators, transformers, high voltage motors, voltage transformers, switches, CVT, a current transformer and other equipment have an in-depth understanding.
高压电动机的微机继电保护与常规保护相比，具有快速、准确、可靠、故障率低、维护方便等特点。
Compared to normal protection high-tension motor's microcomputer is fast, accurate, reliable, has low failure rate and convenient maintenance.
介绍新一代综合保护器基本原理和功能，利用电气综合保护器，对高压电动机的启动实现全过程控制。
Presents the basic principle and function of the new generation of comprehensive electric protector, as well as the whole process control of HP electric motor switch-on with it.
分析了高压电动机的故障特征和现有保护的不足。
The fault character and insufficiency of the existing protection for the HV motor are analyzed.
提出了高压电动机的无功功率补偿及高压补偿柜容量选择。
The compensation of reactive power of a high voltage motor and the capacity selection of a hige voltage compensation cubicle are proposed in the paper.
从压电陶瓷的特性出发，分析了定子表面质点的运动，论述了行波型超声波电动机的运行机理。
Based on the research of the characteristics of piezoelectric ceramic, this paper presents the analysis of the movement of the stator surface points and work principle of motor.
高压变频器作为高压电动机的主要调速手段，被国内外公认为最有发展前途的调速方式，也被广大用户认可。
That high voltage inverters drive high voltage motors, is recognized as the most promising approach in domestic and abroad and accepted by most users.
介绍高压电动机过热保护原理，对过热保护的整定进行了探讨。
It introduces the principle of high voltage motors overheat protection, and discusses the adjusting method of overheat protection.
介绍了南京炼油厂变频调速技术用于焦化富气离心压缩机高压电动机系统的情况。
The application of frequency governing technique in high voltage motor system of centrifugal compres sor for coker rich oil gas was introduced.
近年来，真空开关已成为控制高压电动机必不可少的电器。
In recent years vacuum switches become necessary in high voltage motor control.
主要介绍基于80c196单片机控制的低压电动机保护测控单元。
The protection, measurement and control unit of low voltage electric motor based on single-chip microcomputer 80c196 was introduced briefly.
现有的异步电动机轻载节能器，大多以电压电流相位差为反馈讯号。
Introduces a new energy-saver for lightly-loaded asynchronous motors, taking current as its sample signal.
通过对低压电动机短路电流分析和计算，说明低压电动机短路的种类和保护方法。
By analysis and calculation for short circuit current of low voltage motor, kinds and protection methods of short circuit of the low voltage are explained.
本文介绍电压逆变器的原理，分析带上磁滞同步电动机这一负载后逆变器输出电压电流波形畸变的原因。
It introduces the principle of voltage inverter, analyzed the reason of distortion of output voltage and current wave form, as it is loaded with hysteresis synchronous motor.
通过对高压电动机起动过程中电气参数变化的研究，提出高压电动机过热保护的整定计算方法。
Through the study of the electric machine parameter changing during the starting of the high voltage motor, provided the setting calculation method for high voltage motor overheat protection.
过载保护技术是低压电器智能化技术的重要组成部分，是保证电动机、配电线路安全运行的重要技术。
The over-load protection technology is an indispensable constituent of the low-voltage apparatus intellectualization, ensuring the electric motor and the distribution line safe operation.
论文首先对三相交流调压电路及基于三相调压电路的三相交流异步电动机的软起动方法进行了分析。
The three phases voltage regulator circuits and three phases asynchronous motor soft starter method based on three phases voltage regulator circuits is analyzed at first.
基于MSP430的电动机保护装置是在传统的电机保护装置上集成了多种保护措施，实现了对低压电动机故障的判断和保护。
A motor protective device based on MSP430 integrates several protections into traditional motor protective device to diagnose and protect the motor faults.
对交流调压电路进行了进一步的研究，利用起动电流信号作为反馈量，对三相感应电动机软起动控制系统进行闭环控制。
Further study of Circuit exchange regulator presents, takes the starting current as feedback signal to complete closed-loop control of soft start control of the three-phase induction motor.
因配套原因两台功率与负载特性相差较大的高压电动机组必须选用一套启动设备对两台机组进行一拖二控制。
Two high voltage motors with significantly different power and load have to be started by the same set of starting device. Liquid soft starting devices for high voltage A.
基于单片机低压电动机保护电路设计摘要：电动机因具有结构简单、价格低廉、使用维护方便等优点，在国民经济各方面被广泛采用。
Based on SCM LV motor protection circuit design Abstract: motor is simple, inexpensive and easy to maintain use of the advantages of the national economy in all aspects are widely used.
基于单片机低压电动机保护电路设计摘要：电动机因具有结构简单、价格低廉、使用维护方便等优点，在国民经济各方面被广泛采用。
Based on SCM LV motor protection circuit design Abstract: motor is simple, inexpensive and easy to maintain use of the advantages of the national economy in all aspects are widely used.
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