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1·Stator phase failure is one typical fault of a three-phase induction motor.

缺相故障是三相感应电动机的典型故障之一。

2·In all faults of Three-phase induction motors, stator phase failure has a higher rate.

在三相感应电机运行的各种故障中，绕组缺相故障的发生率较高。

3·Thermal overload relays offer phase failure protection and are convertible from manual to automatic reset.

继电器具有相位故障保护和从手动转换为自动重置的功能。

4·This paper analyzed the reasons and its dangerous of phase failure and phase stagger operation for three-phase asynchronous motor.

分析三相异步电动机产生断相错相运行的原因及其危害性。

5·It can provide protection from over current, short circuit, undervoltage, phase failure, leakage lockout, and operation overvoltage.

具有过流、短路、欠压、断相、漏电闭锁、操作过电压等保护。

6·The relations between load torque and overload current, load torque and staring time, load torque and current of phase failure are given.

得出了负载转矩与电流过载倍数、负载转矩与启动时间、负载转矩与断相电流的关系曲线。

7·Four kinds of common motor phase failure operation are analysed, and therefrom the current-voltage equal-ratio rule is derived and verified.

分析了四类常见的电动机断相运行，并由此推出和验证了断相运行状态下的电流—电压等比规律。

8·The designed installation is mainly used in synthetic protection of small AC motor. It has the functions of phase failure protection and overload short protection.

本设计装置主要用于中小型交流电动机的综合保护，它具有断相、过载短路保护功能。

9·The electronic control line can be added with multiple protecting circuits, such as the protecting circuits for leakage, undervoltage, phase failure, phase sequence, etc.

电子控制线路根据需要可以增加多种保护功能电路，如：漏电、欠电压、缺相、相序等等保护功能电路。

10·This pape. applying a new methods analyses and computes the parameters to phase failure of varies motors and gives protective schemes for motors with different connections.

本文用一种新的理论方法，对各种形式的电动机断相运行时的参数进行原理分析和定量计算，并由此给出不同接法的电动机所应采用的保护方案。