缺相保护

同时DSP控制器开发平台提供了必要的保护电路：过压保护、过流保护、缺相保护、电机过热保护、IPM模块故障等保护电路，以及相应的故障信号处理电路。

DSP 's developing platform of controller offers the essential protection circuit which protect the circuit electrical machine .

35kV变压器跌落保险缺相保护

Phase-lacking Fault Protection due to Drop-fuse for 35 kV Transformer

YQS型潜水泵电机缺相保护的改进

Improvements for the Phase Protection of YQS Submersible Pump Motor

NBM-350晶体管脉冲焊机缺相保护电路的分析与改进

Analysis and improvement of the phase absence protective circuit of the NBM-350 MIG / MAG transistor pulsed welding machine

新颖三相异步电动机错相和缺相保护电路

A new protecting circuit of phase-change and phase-out in three-phase asynchronous motor

利用交流接触器实现三相电动机缺相保护

Application of AC Contactor to Realize Phase Break Protection in Three-phase Motor

并且系统还具备过流保护，缺相保护，启动前10秒报警等功能。

This system has the functions of current protection , phase-less protection .

介绍了一种实用新型三相交流电动机的缺相保护控制装置。

The protective and controlling devices of three-phase alternation motor are described .

浅析三相异步电动机如何走单相正反转异步电动机缺相保护误动分析

Misoperation analysis of open-phase protection for positive and negative rotation asynchronous motor

挖掘机中的错相和缺相保护电路

Protecting Circuit of Phase - Change and Phase - Out in Excavator

一种具有缺相保护和反时限过流保护功能的电子继电器

An Electronic Relay with Phase-failure Protection , Short-Circuit Protection and Overcurrent Protection

低压电机运行中的缺相保护实现

Realization for phrase-lacking protection in the operation of a low voltage motor

电视发射机缺相保护电路的改进

Improvement on Lack Phase Protection Circuit of TV Transmitter

一种基于单片机的相序检测及电机缺相保护方法

A Novel Method for Phase Sequence Test and Phase-break Protection Based on MCU

电动机缺相保护与补相再运行装置

The Phase - absent Protection and Supplement of Phase to Run again for Motor

三相异步电动机缺相保护功能的改进

Improvement of three-phase asynchronous motor open-phase protect function

船舶岸电相序自动整定和缺相保护的研究

Research of Shore Power Phase-sequence Automatic Modification and Open-phase Protection on Board the Ships

对三相交流异步电动机的缺相保护，传统的方法是采用热继电器。

Proper selection and use of thermal relay are over expounded from six aspects .

三相电动机缺相保护实用方法

Practical Phase-lacking Protection to Three-phase Motor

缺相保护、过负荷保护和两段过流后备保护构成整套变压器保护。

The transformer protection is composed of phase-lacking , over loading and two zones backup over-current protections .

水厂深井泵电机缺相保护的改进

The Improvement of the Vacant Phase Protection of Deep-well Pump 's Electric Machine of the Water Plant

传统的热继电器缺相保护存在反应慢、误动作或不能及时切断电路等问题。

The traditional relay features in slow response , wrong actions and failure to punctually shut the circuit .

介绍具有缺相保护的单负载-双电源自动切换控制。

The automatic single - load double - source change - over control with out of phase protection is presented .

介绍了一种新颖的相序检测及电机缺相保护方法，利用单片机实现数字相序检测，并且用相频变换的方法来实现电源缺相检测。

The digital test technique is used to test the phase sequence and the phase-frequency conversion technique is used to test the line-break breakdown .

对传统的热继电器保护电路进行了改进，通过加接接触器，有效地实现了三相异步电动机的缺相保护。

This article is aimed at the improvement of the heating relay , and realizing the protection of the three-phase AC introduction motors connecting AC contactors .

本文所设计的节电控制系统还包括了过载保护、缺相保护以及三相不平衡保护等故障判断和保护功能，提高了电机寿命，从而也极大降低了电机的使用成本。

Those functions , such as overload protection , open-phase protection and unbalanced three-phase fault protection are also implemented which can elongate the service life of the motor .

此断相保护装置可广泛应用于无缺相保护的电气设备中，使设备控制部件免于遭受断路故障的不必要的损坏。

The phase-failure protection can be widely used in the electrical equipment without open-phase protection to make the control part free of the unnecessary damage of the open circuit failure .

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 .

充分利用单片机的内部资源，实现了相序自适应、缺相保护和系统参数在线调节功能。

It makes full usage of the resources of the single ? chip computer and realizes the functions of phase self ? adaption , phase ? lost protection and parameter ? adjusting on line .

风机安置电源开关时，必须安置电源缺相保护或热继电器。内装交流接触器、热继电器、自复位万能转换开关或按钮等。

Do not forget to link up the phase indicator ( undercurrent relay ) and maximum relay when allocate the power switch . Inside is installed AC contactor , thermal replay , self-settable conversion switch .