electric relay

Adopt hot relay protection, prevents electric motor brought about by electric motor surcharge from damaging.

采用热继电器保护, 防止电机过载所造成的电机损坏.

The minitype electromagnetic relay is one kind of controlling low-voltage electric appliances .

小型电磁继电器是一种控制类 低压电器.

The relay protection ensures the safe operation of the electric system.

继电保护装置是电力系统安全运行的保证.

The paper introduces the designing method of the digital time-delay relay and gives the detailed electric circuit picture.

阐述了数字式时间继电器的设计方法，给出了详细的电路图。

The system has already test run in the Relay Protection Department of Chengdu Electric Power Company.

本系统目前己经在成都电业局继电保护所试运行成功.

Electric braking on the right bank of the Three Gorges power station on the relay the impact of downtime

三峡右岸电站电气制动停机对继电保护的影响

The Analysis of Relay Protection and Calculation Method Base on Yuncheng Electric Power System

电力系统稳定器的应用配置及整定试验方法基于运城电网的继电保护分析及整定配置

The whole working process of time-delay relay for electric door-window on SANTANA 2000 is introduced in details here.

详细介绍桑塔纳2000（时代超人）电动门窗延时继电器在点火开关未接通前、接通后以及断开后的工作过程。

WANG Wei-jian . Application of Relay Protection on Generator and Transformer. Beijing: China Electric Power Press, 2004.

王维俭. 发电机变压器继电保护应用. 北京: 中国电力出版社, 2004.

Development of Self-adaptive Electric Relay Protection for Big/ Middle Model Electromotor

大中型电动机自适应继电保护装置的研制

Reversal current chronopotentiometry have to restrict sampling interval. To solve this problem, timing control is applied in electric relay. Timer control which is included in Delphi is used in the program. Program of controlling electric relay is executed every 4 seconds.

为了解决使用电流反向法必须要限制采样间隔的问题，我们对继电器实施定时控制，在编程中使用Delphi中的时钟控件（timer），每4秒钟执行一次程序。

Compared with conventional electric relay control system, PLC control can run more safely and reliably, and can be operated more practicality, simply and conveniently.

运行安全可靠，操作实用简单方便，PLC控制具有常规继电器控制所不具有的优越性。

JDC A Electric Relay Intelligent Detecting Set

JDC-A型继电器智能检测台