变(Bian)压(Ya)器(Qi)中(Zhong)性(Xing)点(Dian)接(Jie)地(Di)电(Dian)阻(Zu)柜(Gui)就(Jiu)是(Shi)在(Zai)发(Fa)生(Sheng)单(Dan)相(Xiang)接(Jie)地(Di)故(Gu)障(Zhang)时(Shi)，(?)在(Zai)接(Jie)地(Di)相(Xiang)和(He)变(Bian)压(Ya)器(Qi)中(Zhong)性(Xing)点(Dian)之(Zhi)间(Jian)加(Jia)了(Liao)一(Yi)个(Ge)电(Dian)阻(Zu)，(?)可(Ke)以(Yi)限(Xian)制(Zhi)单(Dan)相(Xiang)接(Jie)地(Di)故(Gu)障(Zhang)电(Dian)流(Liu)。(?)

       配(Pei)电(Dian)系(Xi)统(Tong)中(Zhong)性(Xing)点(Dian)接(Jie)地(Di)方(Fang)式(Shi)通(Tong)常(Chang)有(You)中(Zhong)性(Xing)点(Dian)不(Bu)接(Jie)地(Di)、(?)中(Zhong)性(Xing)点(Dian)经(Jing)电(Dian)阻(Zu)接(Jie)地(Di)和(He)中(Zhong)性(Xing)点(Dian)经(Jing)消(Xiao)弧(Hu)线(Xian)圈(Quan)接(Jie)地(Di)。(?)各(Ge)种(Zhong)接(Jie)地(Di)方(Fang)式(Shi)不(Bu)同(Tong)，(?)使(Shi)用(Yong)方(Fang)式(Shi)也(Ye)不(Bu)同(Tong)。(?)随(Sui)着(Zhuo)国(Guo)民(Min)经(Jing)济(Ji)的(De)发(Fa)展(Zhan)，(?)许(Xu)多(Duo)城(Cheng)市(Shi)配(Pei)电(Dian)网(Wang)已(Yi)经(Jing)改(Gai)变(Bian)了(Liao)过(Guo)去(Qu)以(Yi)架(Jia)空(Kong)线(Xian)路(Lu)为(Wei)主(Zhu)的(De)局(Ju)面(Mian)，(?)而(?)是(Shi)以(Yi)电(Dian)缆(Lan)线(Xian)路(Lu)为(Wei)主(Zhu)，(?)与(Yu)此(Ci)同(Tong)时(Shi)，(?)一(Yi)些(Xie)新(Xin)型(Xing)设(She)备(Bei)，(?)如(Ru)结(Jie)构(Gou)紧(Jin)凑(?)的(De)封(Feng)闭(Bi)式(Shi)SF6开(Kai)关(Guan)柜(Gui)、(?)交(Jiao)联(Lian)聚(Ju)乙(Yi)烯(Xi)电(Dian)缆(Lan)以(Yi)及(Ji)氧(Yang)化(Hua)锌(Xin)避(Bi)雷(Lei)器(Qi)等(Deng)得(De)到(Dao)越(Yue)来(Lai)越(Yue)广(Guang)泛(Fan)的(De)应(Ying)用(Yong)，(?)这(Zhe)就(Jiu)使(Shi)得(De)原(Yuan)来(Lai)沿(Yan)用(Yong)的(De)非(Fei)有(You)效(Xiao)接(Jie)地(Di)方(Fang)式(Shi)有(You)些(Xie)不(Bu)适(Shi)用(Yong)。(?)因(Yin)此(Ci)，(?)如(Ru)何(He)有(You)效(Xiao)经(Jing)济(Ji)的(De)设(She)置(Zhi)中(Zhong)性(Xing)点(Dian)接(Jie)地(Di)成(Cheng)为(Wei)当(Dang)前(Qian)供(Gong)电(Dian)工(Gong)作(Zuo)的(De)重(Zhong)点(Dian)。(?)

       目(Mu)前(Qian)，(?)我(Wo)国(Guo)已(Yi)有(You)不(Bu)少(Shao)配(Pei)电(Dian)网(Wang)中(Zhong)性(Xing)点(Dian)采(Cai)用(Yong)了(Liao)经(Jing)电(Dian)阻(Zu)接(Jie)地(Di)的(De)运(Yun)行(Xing)方(Fang)式(Shi)。(?)安(An)装(Zhuang)中(Zhong)性(Xing)点(Dian)接(Jie)地(Di)电(Dian)阻(Zu)柜(Gui)后(Hou)，(?)当(Dang)发(Fa)生(Sheng)非(Fei)金(Jin)属(Shu)性(Xing)接(Jie)地(Di)时(Shi)，(?)受(Shou)接(Jie)地(Di)点(Dian)电(Dian)阻(Zu)的(De)影(Ying)响(Xiang)，(?)流(Liu)过(Guo)接(Jie)地(Di)点(Dian)和(He)中(Zhong)性(Xing)点(Dian)的(De)电(Dian)流(Liu)比(Bi)金(Jin)属(Shu)性(Xing)接(Jie)地(Di)时(Shi)有(You)显(Xian)著(Zhu)降(Jiang)低(Di)，(?)同(Tong)时(Shi)，(?)健(Jian)全(Quan)相(Xiang)电(Dian)压(Ya)上(Shang)升(Sheng)也(Ye)显(Xian)著(Zhu)降(Jiang)低(Di)，(?)零(Ling)序(Xu)电(Dian)压(Ya)值(Zhi)约(Yue)为(Wei)单(Dan)相(Xiang)金(Jin)属(Shu)性(Xing)接(Jie)地(Di)的(De)一(Yi)半(Ban)。(?)由(You)此(Ci)可(Ke)见(Jian)，(?)采(Cai)用(Yong)中(Zhong)性(Xing)点(Dian)经(Jing)电(Dian)阻(Zu)接(Jie)地(Di)，(?)可(Ke)降(Jiang)低(Di)单(Dan)相(Xiang)接(Jie)地(Di)时(Shi)的(De)暂(Zan)态(Tai)过(Guo)电(Dian)压(Ya)、(?)消(Xiao)除(Chu)弧(Hu)光(Guang)接(Jie)地(Di)过(Guo)电(Dian)压(Ya)和(He)某(Mou)些(Xie)谐(Xie)振(Zhen)过(Guo)电(Dian)压(Ya)，(?)并(Bing)能(Neng)采(Cai)用(Yong)简(Jian)单(Dan)的(De)继(Ji)电(Dian)保(Bao)护(Hu)装(Zhuang)置(Zhi)迅(Xun)速(Su)选(Xuan)择(Ze)故(Gu)障(Zhang)线(Xian)路(Lu)，(?)切(Qie)除(Chu)故(Gu)障(Zhang)点(Dian)。(?)