风电专用熔断器

主要技术参数：

1、额定电(dian)压：40.5(KV)

2，额定工作电流：200(A)                                 

3、动(dong)稳(wen)定电(dian)流(liu)(峰值(zhi))：80；120(KA)

4、热(re)稳定电流(liu)(峰值)：6.3；16(KA)

5、热稳定时(shi)间：4(S)

使用条件

1、环境温度：-45℃～55℃；                          ;           

2、海拔(ba)不(bu)超过3000m；

3、风速不大于50m/s；

4、地震烈度不超(chao)过8度；

5、熔断器(qi)不适用于下述场所(suo)：有燃烧(shao)或爆炸危险(xian)的场所(suo)；

6、本(ben)产品(pin)为高原型、防污型产品(pin)：

技术特性：

本产(chan)品设计独特符合国(guo)家技术标准，具有实用(yong)功能。

1、本产品采用(yong)(yong)合成硅橡胶材料作为绝缘(yuan)(yuan)体，中心材料采用(yong)(yong)绝缘(yuan)(yuan)引拔棒(bang)。

2、开关触头采(cai)用钢制件、磷(lin)青铜(tong)材(cai)料、不锈(xiu)钢材(cai)料组成。

3、所(suo)有连接部(bu)分标(biao)准件均采用不锈钢标(biao)准件（304材(cai)质）

4、开关动作(zuo)部分是压铸铜件(jian)、玻纤丝缠(chan)绕(rao)管。

5、熔管上动(dong)触头(tou)(tou)为(wei)双触头(tou)(tou)组合、下动(dong)触头(tou)(tou)为(wei)翻(fan)转触头(tou)(tou)设计方(fang)式。

6、绝缘体(ti)连接(jie)部(bu)分为精密(mi)铸钢件，中(zhong)心支(zhi)架(jia)厚度为12毫米。有效地避(bi)免了外力影响开关整体(ti)变动。

7、该产品(pin)上(shang)静触头(tou)为双接(jie)触面，一处为施压接(jie)触方式(shi)(shi)、第二位卡和接(jie)触方式(shi)(shi)。

8、下静触头为铜压铸触头。

型号实验标准说明：

产品性能符合GB15166.3-2008国(guo)家标准和(he)IEC282-2国(guo)际标准。该产品电(dian)气性能和(he)机械(xie)性能优良，已达到GBl985—2004及修订和(he)IEC694的要求(qiu)，并且满(man)足了喷射式熔断器GB/15166.3-2008标准。是现行40.5KV级户外隔离开关及熔断器的更新换(huan)代产品。其产品具有双重功能。

隔离开(kai)关+熔断器(qi)组(zu)合(he)结构简介：

隔(ge)(ge)离(li)(li)开(kai)关+熔(rong)(rong)(rong)(rong)(rong)(rong)断器(qi)(qi)组(zu)合由绝缘(yuan)(yuan)支架(jia)和(he)熔(rong)(rong)(rong)(rong)(rong)(rong)丝(si)(si)管(guan)两大部分(fen)组(zu)成(cheng)(cheng)(cheng)(cheng)，静触(chu)(chu)(chu)头(tou)(tou)安(an)装(zhuang)在绝缘(yuan)(yuan)支架(jia)的(de)(de)两端，上(shang)动触(chu)(chu)(chu)头(tou)(tou)（双触(chu)(chu)(chu)头(tou)(tou)组(zu)成(cheng)(cheng)(cheng)(cheng)）和(he)下(xia)(xia)触(chu)(chu)(chu)头(tou)(tou)安(an)装(zhuang)在熔(rong)(rong)(rong)(rong)(rong)(rong)丝(si)(si)管(guan)的(de)(de)两端。熔(rong)(rong)(rong)(rong)(rong)(rong)丝(si)(si)管(guan)由内(nei)层的(de)(de)消(xiao)弧(hu)管(guan)和(he)外(wai)层环(huan)氧(yang)玻璃丝(si)(si)管(guan)组(zu)成(cheng)(cheng)(cheng)(cheng)。拉负(fu)荷隔(ge)(ge)离(li)(li)开(kai)关+熔(rong)(rong)(rong)(rong)(rong)(rong)断器(qi)(qi)时(shi)有弹性辅(fu)助触(chu)(chu)(chu)头(tou)(tou)，用(yong)以分(fen)、合负(fu)荷电(dian)流。隔(ge)(ge)离(li)(li)开(kai)关+熔(rong)(rong)(rong)(rong)(rong)(rong)断器(qi)(qi)在正常运行时(shi)，熔(rong)(rong)(rong)(rong)(rong)(rong)丝(si)(si)管(guan)借助熔(rong)(rong)(rong)(rong)(rong)(rong)丝(si)(si)张紧后(hou)形(xing)成(cheng)(cheng)(cheng)(cheng)闭(bi)合位置。当(dang)系统(tong)发生(sheng)故障(zhang)时(shi)，故障(zhang)电(dian)流使熔(rong)(rong)(rong)(rong)(rong)(rong)丝(si)(si)迅速熔(rong)(rong)(rong)(rong)(rong)(rong)断，并(bing)形(xing)成(cheng)(cheng)(cheng)(cheng)电(dian)弧(hu)，消(xiao)弧(hu)管(guan)受(shou)电(dian)弧(hu)灼热，分(fen)解(jie)出大量的(de)(de)气体(ti)，使管(guan)内(nei)形(xing)成(cheng)(cheng)(cheng)(cheng)高压力，并(bing)沿管(guan)道(dao)形(xing)成(cheng)(cheng)(cheng)(cheng)纵吹，电(dian)弧(hu)被(bei)迅速拉长(zhang)而熄灭(mie)(mie)。熔(rong)(rong)(rong)(rong)(rong)(rong)丝(si)(si)熔(rong)(rong)(rong)(rong)(rong)(rong)断后(hou)，下(xia)(xia)部动触(chu)(chu)(chu)头(tou)(tou)失去张力而下(xia)(xia)翻，上(shang)动触(chu)(chu)(chu)头(tou)(tou)（双触(chu)(chu)(chu)头(tou)(tou)）、下(xia)(xia)一触(chu)(chu)(chu)头(tou)(tou)机构释放熔(rong)(rong)(rong)(rong)(rong)(rong)丝(si)(si)管(guan)，熔(rong)(rong)(rong)(rong)(rong)(rong)丝(si)(si)管(guan)跌落，形(xing)成(cheng)(cheng)(cheng)(cheng)明显的(de)(de)开(kai)断位置。此时(shi)静触(chu)(chu)(chu)头(tou)(tou)、一动触(chu)(chu)(chu)头(tou)(tou)仍然(ran)接触(chu)(chu)(chu)，如(ru)需更换用(yong)绝缘(yuan)(yuan)杆拉下(xia)(xia)上(shang)一动触(chu)(chu)(chu)头(tou)(tou)，同时(shi)取下(xia)(xia)熔(rong)(rong)(rong)(rong)(rong)(rong)断管(guan)，安(an)装(zhuang)熔(rong)(rong)(rong)(rong)(rong)(rong)丝(si)(si)（在一动触(chu)(chu)(chu)头(tou)(tou)和(he)第二(er)动触(chu)(chu)(chu)头(tou)(tou)中间(jian)穿过熔(rong)(rong)(rong)(rong)(rong)(rong)丝(si)(si)透过熔(rong)(rong)(rong)(rong)(rong)(rong)断管(guan)连接下(xia)(xia)动触(chu)(chu)(chu)头(tou)(tou)）。辅(fu)助触(chu)(chu)(chu)头(tou)(tou)也分(fen)离(li)(li)，辅(fu)助触(chu)(chu)(chu)头(tou)(tou)之间(jian)产(chan)生(sheng)电(dian)弧(hu)，电(dian)弧(hu)在灭(mie)(mie)弧(hu)罩狭(xia)缝中被(bei)拉长(zhang)，同时(shi)产(chan)生(sheng)气体(ti)，在电(dian)流过零(ling)时(shi)，将电(dian)弧(hu)熄灭(mie)(mie)。

当需要分断(duan)时，用绝缘杆拉(la)开上动触头（双触头任(ren)何(he)一(yi)拉(la)环），可见明显断(duan)口。方(fang)便检修维(wei)护。