Contactor can be easily retro-fitting auxiliary contact group, and appropriate combination of thermal relay to protect the load that may have been circuits. 接触器还可方便地加装辅助触头组,和适当的热继电器组合,保护可能发生过负载的电路之用。
The selection of an auxiliary relay is a key question of reliability to improve control system operation. 阐述了中间继电器的选型是切实提高控制系统运行可靠性的关键问题。
In recent years, the HV auxiliary transformers or starting/ standby transformers in multiple power plants in Guangdong experienced differential relay misoperation during external faults or the start-up of auxiliary large-capacity motors. 近年来,广东省内多个发电厂出现过高压厂用变压器或起动-备用变压器在区外故障时或厂用大容量电动机起动时差动保护误动作的情况。
Reliability of an Auxiliary Relay and the Analysis of Problems in Application 中间继电器可靠性与应用中问题分析
The principle and application of negative sequence directional relay against fault component are presented in this paper. And design on the auxiliary criteria, setting value set, engineering design and how to prevent the directional relay from miss-discrimination during transient of the protection are also discussed. 介绍了故障分量负序方向保护的原理与应用,讨论了该保护在辅助判据的设计、定值整定、工程设计及如何避免暂态过程方向误判别等问题。
Systematic design schemes and solutions to problems which may encounter in future are offered for actual detection system. It can be used in auxiliary apparatus for automobile relay automation product line. 同时,针对实际的检测系统开发提供系统设计方案和对一些将要遇到的问题进行了分析,可以用作汽车继电器自动化生产线的辅助设备。
During adjustment and trial operation in Lingao Nuclear Power Station the main and auxiliary transformers have some problems, including the abnormal action of gas relay, total hydrocarbon of the transformer oil and acetylene contents exceeding the standards, crack of O-shape seal ring for load-tap. 岭澳核电站在调试与试运行过程中,主变压器及厂用变压器曾发生瓦斯继电器异常动作,变压器油总烃含量超标、乙炔含量超标,有载分接开关O型密封圈破裂等问题。
For the assistant scheduling problem, put forward the auxiliary strategy of the modern satellite communication network, Research the routing algorithms of satellite communications network and analyze the end-to-end delay, verifies the theory for relay assistant scheduling. 分析与研究现代卫星通信网的路由算法以及端到端延时,为中继辅助调度进行理论验证,给出小卫星任务调度联合优化目标函数。