無功(gong)(gong)(gong)補償(chang)的(de)基(ji)本(ben)原(yuan)理：電(dian)(dian)網輸出的(de)功(gong)(gong)(gong)率(lv)包括(kuo)兩部(bu)分(fen);一(yi)是(shi)有功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv);二是(shi)無功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv).直(zhi)接消耗(hao)電(dian)(dian)能(neng)(neng),把(ba)電(dian)(dian)能(neng)(neng)轉變為(wei)機械能(neng)(neng),熱能(neng)(neng),化學能(neng)(neng)或(huo)聲能(neng)(neng),利用這(zhe)(zhe)些能(neng)(neng)作(zuo)功(gong)(gong)(gong),這(zhe)(zhe)部(bu)分(fen)功(gong)(gong)(gong)率(lv)稱(cheng)為(wei)有功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv);不消耗(hao)電(dian)(dian)能(neng)(neng);只是(shi)把(ba)電(dian)(dian)能(neng)(neng)轉換為(wei)另一(yi)種(zhong)形式的(de)能(neng)(neng),這(zhe)(zhe)種(zhong)能(neng)(neng)作(zuo)為(wei)電(dian)(dian)氣設備(bei)能(neng)(neng)夠(gou)作(zuo)功(gong)(gong)(gong)的(de)必備(bei)條件,并且,這(zhe)(zhe)種(zhong)能(neng)(neng)是(shi)在電(dian)(dian)網中(zhong)與電(dian)(dian)能(neng)(neng)進(jin)行周期性轉換,這(zhe)(zhe)部(bu)分(fen)功(gong)(gong)(gong)率(lv)稱(cheng)為(wei)無功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv)。

安裝補償模組經濟效(xiao)益分析

90年代(dai)以(yi)前，農(nong)村低(di)壓(ya)用電(dian)(dian)以(yi)居(ju)民生活用電(dian)(dian)為主，其(qi)負荷(he)主要是照明用白(bai)熾燈，不僅用電(dian)(dian)量(liang)少而且負荷(he)性質基本是純電(dian)(dian)阻(zu)性(COSφ≈1)，而低(di)壓(ya)動(dong)力用戶的(de)(de)負荷(he)功(gong)率因數雖然較(jiao)低(di)，但其(qi)用電(dian)(dian)量(liang)占總售電(dian)(dian)量(liang)的(de)(de)比例較(jiao)小，故(gu)影響不大(da)。近些年來，由于各種現代(dai)家用電(dian)(dian)器的(de)(de)迅(xun)速(su)普及和大(da)量(liang)使用，居(ju)民生活用電(dian)(dian)不僅用電(dian)(dian)量(liang)有了較(jiao)大(da)的(de)(de)增長，更重(zhong)要的(de)(de)是其(qi)負荷(he)性質有了很(hen)大(da)的(de)(de)改變。

沖擊耐(nai)壓(ya)試驗(yan)(yan)時，被試品不得帶有過電壓(ya)保護元件，電流互(hu)感器的二(er)次(ci)側應(ying)短路(lu)并接(jie)(jie)地，低(di)電流比的電流互(hu)感器允許將一次(ci)側短接(jie)(jie)。輔助(zhu)回(hui)路(lu)和(he)控制回(hui)路(lu)應(ying)能經(jing)受2500v工頻耐(nai)壓(ya)試驗(yan)(yan)，并按以下要求進行：將輔助(zhu)回(hui)路(lu)連接(jie)(jie)在一起，試驗(yan)(yan)電壓(ya)加在它(ta)和(he)接(jie)(jie)地骨架之(zhi)間。