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摘　要: 本文阐述了吉林省永吉县星星哨水库水电站利用发电机残压自行研制出的电子式转速表的工作原理、特点、安装与接线，说明了该装置在发电机组上的应用，收到了良好的效果。

 

关键词: 转速；残压；f/v转换；电子转速表

 

the application of electronic speed indicator in generators

 

//sun fengying, zou hui, sun xuzhi

 

abstract: in the paper, xingxingshao hydropower station in yongji county, jilin province, which developsthe principles, characteristics, installation and wiring of the electronic speed indicator through utilizing theresidual pressure of generator. the paper shows the application of the device in generators has yielded goodresults.

 

key words: rotational speed; residual pressure; f/v conversion; electronic speed indicator

 

发电机组从启动到额定值，从并网到运行，从运行到停机，时刻都要测量发电机组的转速，按照机组转速的高低来操纵机组的运行。目前电站中常用电压型的转速信号器，是按照永磁发电机发出