高压电阻器 大功率电阻器

中性点经电阻接地，即是中性点与大地之间接入一定电阻值的电阻。 Neutral point ground through resistor, that is the resistor between the neutral point and the ground access certain resistance value. 发电机回路发生单相接地时电流过大容易造成发电机铁芯灼伤，同时产生的弧光接地过电压易破坏耐压水平较弱的发电机绝缘保护。 Generator circuit of single-phase grounding current is too likely to cause the generator stator core burns, while the arc grounding overvoltage easily destroy generator insulation protection with the low withstanding voltage level. 中性点接地电阻器性能Neutral grounding resistor performance: 常规电阻主要性能如下： 使用电压范围宽Using voltage range: 0.33～110kV 故障电流大Fault current: 1～5000A 阻值范围宽Wide resistance range: 0.5～1500Ω 允许通流时间Allow flow time: 5S，10S，30S，60S， 10minutes，连续运行continuous operation； 防护等级Protection grade: IP20～ IP55， 安装方式Installation：室内indoor,室外outdoor 可以辅助安装隔离开关，断路器，CT,PT等 Can assist the installation of isolating switch, circuit breaker, CT, PT etc. 允许温升The permissible temperature rise: 1.当额定时间为10秒,较大温升为760℃； At the rated time of 10S, maximum temperature rise of 760℃; 2.当额定时间为10Sflt888.b2b168.com/m/