By reason that on - line monitoring data of electrical equipment are affected by many factors such as reference voltage of pt , outside environment , running mode , voltage fluctuation and random factors , they will be dispersive and fluctuant . what is more , distortion is possible for data while they are transmitted 由于在線數(shù)據(jù)是在設(shè)備運(yùn)行的條件下獲得,會(huì)受到各種因素如pt處獲得的基準(zhǔn)電壓、外界環(huán)境、系統(tǒng)運(yùn)行方式、電壓波動(dòng)以及一些隨機(jī)因素的影響,得到的數(shù)據(jù)會(huì)有一定的分散性和波動(dòng),即使在數(shù)據(jù)的傳輸過程中,數(shù)據(jù)也可能會(huì)失真。