A study of adaptive zero - sequence current protection 自適應(yīng)零序電流保護(hù)的研究
The device can protect start - up status and running status of asynchronous motors by differential protection , over current protection , negative - sequence current protection , zero - sequence current protection , inverse time current protection , under - voltage protection and so on , can measure every kind of electricity , and can process the function of telecontrol , telemetering and telecommunication 其依靠電流差動(dòng)、速斷、負(fù)序過(guò)流、反時(shí)限、零序過(guò)流和低電壓等保護(hù)方法實(shí)現(xiàn)了片電動(dòng)機(jī)的運(yùn)行、啟動(dòng)和自啟動(dòng)過(guò)程進(jìn)行保護(hù),并實(shí)現(xiàn)各種電量的計(jì)量,同時(shí)具有遙控、遙測(cè)、遙信的功能。