一种输出脉冲宽度及幅值可调的直流电源装置  

A DC power supply device with adjustable output pulse width and amplitude

作　　者：齐向东 沈鹏 李良创 吴泽宇 韩震 Qi Xiangdong;Shen Peng;Li Liangchuang;Wu Zeyu;Han Zhen(Guangzhou Bureau of EHV transmission company of China Southern Power Grid Co.,Ltd,Guangzhou Guangdong,510000)

机构地区：[1]南方电网有限责任公司超高压输电公司广州局,广东广州510000

出　　处：《电子测试》2021年第17期120-121,共2页Electronic Test

摘　　要：断路器在每次检修后应进行低电压合闸、跳闸试验,其目的是保证断路器在变电站的操作电源为允许变动范围之内而且又偏低时,仍能可靠动作。断路器低电压动作特性在断路器检修时都要进行测试。如果断路器动作电压过高或过低,就会引起断路器误分闸和误合闸,以及在断路器发生故障时拒绝分闸,造成事故,甚至影响整个电网的稳定。本研究进行报告一种输出脉冲宽度及幅值可调的直流电源装置,带给相关的实践工作有价值的借鉴。Low voltage closing and tripping test should be carried out for the circuit breaker after each maintenance.The purpose is to ensure that the circuit breaker can operate reliably when the operating power supply of the substation is within the allowable range of variation and low.The low voltage action characteristics of circuit breaker should be tested during the maintenance of circuit breaker.If the action voltage of the circuit breaker is too high or too low,it will cause the circuit breaker to open and close by mistake,and refuse to open when the circuit breaker fails,which will cause accidents and even affect the stability of the whole power grid.This research reports a DC power supply device with adjustable output pulse width and amplitude,which can provide valuable reference for relevant practical work.

关 键 词：输出脉冲宽度 幅值可调 直流电源装置 技术分析 

分 类 号：TM561[电气工程—电器] TN86[电子电信—信息与通信工程]