varistor

The application situation of a cabinet-type high voltage thermistor of the gas workshop in starting of the 450 kW high voltage asynchronous motor of Northeast Special Steel Group(Dalian Base) is presented.

介紹了東北特鋼集團(大連基地)煤氣車間柜式高壓熱變電阻器在450kW高壓異步電動機起動中的應用情況。

The article introduces the reduced voltage starting principle of the high power motor with 19000kW,working principle and starting characteristic of the thermal resistor,analyzes the main factors which affect the motor starting performance.

介紹19000kW大功率電機降壓起動原理、熱變電阻工作原理和起動特性,分析影響電機起動性能的主要因素;通過起動實踐和錄制起動曲線,了解熱變電阻的實際溫度、電網電壓等參數對電機起動過程的影響,以期合理地調節參數,優化起動曲線。