一、三相組合式過電壓保護器是避雷器嗎

三相組(zu)合(he)(he)式過電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)保(bao)護(hu)(hu)(hu)器(qi)(qi)（三相組(zu)合(he)(he)式避雷器(qi)(qi)）是(shi)用(yong)于(yu)保(bao)護(hu)(hu)(hu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力設備(bei)絕緣免受(shou)過電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)危害(hai)的(de)(de)保(bao)護(hu)(hu)(hu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)，是(shi)一種的(de)(de)避雷器(qi)(qi)，其(qi)特(te)點在限(xian)制相地(di)之(zhi)間過電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)的(de)(de)同(tong)時(shi)，又對相間過電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)進(jin)行有效地(di)限(xian)制，這是(shi)普通避雷器(qi)(qi)無(wu)法做到的(de)(de)。應(ying)用(yong)于(yu)保(bao)護(hu)(hu)(hu)真空開關，旋(xuan)轉電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機，并聯補償電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容器(qi)(qi)，發電(dian)(dian)(dian)(dian)(dian)(dian)(dian)廠，變電(dian)(dian)(dian)(dian)(dian)(dian)(dian)站等等，這種組(zu)合(he)(he)保(bao)護(hu)(hu)(hu)器(qi)(qi)內部采用(yong)了大(da)容量氧化鋅電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻片作(zuo)為(wei)主要元件(jian)，它具有良好的(de)(de)伏安(an)特(te)性和吸收過電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)的(de)(de)能(neng)力，對保(bao)護(hu)(hu)(hu)設備(bei)能(neng)提供可靠(kao)的(de)(de)保(bao)護(hu)(hu)(hu)，深受(shou)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力系統(tong)的(de)(de)歡迎。

二、三相組合式過電壓保護器的結構特點

前文已(yi)經簡單了解到(dao)了三(san)相組合(he)式過電壓保護器(qi)是一種新型的避雷器(qi)，那么三(san)相組合(he)式過電壓保護器(qi)的結構特點有哪些(xie)么？

1、結構(gou)新穎獨特，四元件星形接法，技術性能優(you)異，絕緣(yuan)耐(nai)高壓(ya)，極大(da)地利用(yong)和縮減(jian)了使用(yong)空(kong)間。

2、復(fu)合外套整體模壓，具有良好的密(mi)封、防爆、防潮性能(neng)，抗(kang)漏痕(hen)、抗(kang)電蝕，耐(nai)污，憎水性好。

3、高(gao)壓電纜接線，保證(zheng)絕緣(yuan)強度，安裝靈活(huo)。

4、體積小，重量輕，節省占地，特別適合在各種開關柜內(nei)安(an)(an)裝（既(ji)可(ke)垂(chui)直安(an)(an)裝，也可(ke)水平(ping)安(an)(an)裝）。

三、三相組合式過電壓保護器的使用條件

1、海拔高度不大于2000M。

2、環境溫度：-40℃~+40℃。

3、電源頻(pin)率：48Hz~62Hz。

4、長(chang)期(qi)施加在保護(hu)器上的工頻電(dian)壓(ya)不超過保護(hu)器的持續運行電(dian)壓(ya)。

5、風速(su)不超過(guo)35m/s。

6、地震裂度7度及以下地區(qu)。