[vc_row][vc_column][vc_custom_heading source="post_title" font_container="tag:h1|text_align:left|color:%231e73be"][vc_column_text]戶(hù)外跌落式熔斷器及拉負(fù)荷跌落式熔斷器是戶(hù)外高壓保護(hù)電器。它裝配在配電變壓器高壓側(cè)或配電線(xiàn)支干線(xiàn)路上，用作變壓器和線(xiàn)路的短路、過(guò)載保護(hù)及分合負(fù)荷電流。跌落式熔斷器由絕緣支架和熔絲管二部分組成，靜觸頭安裝在絕緣支架兩端，動(dòng)觸頭安裝在熔絲管兩端，熔絲管由內(nèi)層的消弧管和外層的環(huán)氧玻璃管組成。拉負(fù)荷跌落式熔斷器增加彈性輔助觸頭及滅弧罩，用以分合負(fù)荷電流。

跌落式熔斷器在正常運(yùn)行時(shí)，熔絲管借助熔絲張緊后形成閉合位置。當(dāng)系統(tǒng)發(fā)生故障時(shí)，故障電流使熔絲迅速熔斷，并形成電弧，消弧管受電弧灼熱，分解出大量的氣體，使管內(nèi)形成很高的壓力，并沿管道形成縱吹，電弧被迅速拉長(zhǎng)而熄滅。熔絲斷后，下部動(dòng)觸頭失去張力而下翻，鎖緊機(jī)構(gòu)釋放熔絲，熔絲跌落，形成明顯的開(kāi)斷位置，當(dāng)需要拉負(fù)荷時(shí)，用絕緣桿開(kāi)動(dòng)觸頭，此時(shí)主動(dòng)、靜觸頭仍然接觸，繼續(xù)用絕緣桿拉動(dòng)觸頭，輔助觸頭也分離，在輔助觸頭之間產(chǎn)生電弧，電弧在滅弧罩狹縫中被拉長(zhǎng)，同時(shí)滅弧罩產(chǎn)生氣體，在電流過(guò)零時(shí)，將電弧熄滅。[/vc_column_text][vc_column_text]

[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column width="1/3"][vc_single_image image="43" img_size="medium" alignment="center" onclick="custom_link" css_animation="fadeInUpBig" link="/project/rw12dieluoshirongduanqi1/"][vc_btn title="RW12-1型" style="3d" color="primary" align="center" css_animation="fadeInUpBig" button_block="true" link="url:http%3A%2F%2Fwww.xhxfg.com%2Fproject%2Frw12dieluoshirongduanqi1%2F|title:AFRW12-1%E5%9E%8B%E8%B7%8C%E8%90%BD%E5%BC%8F%E7%86%94%E6%96%AD%E5%99%A8||"][vc_single_image image="51" img_size="medium" alignment="center" onclick="custom_link" css_animation="fadeInUpBig" link="/project/rw12fdieluoshirongduanqi/"][vc_btn title="RW12F型" style="3d" color="primary" align="center" css_animation="fadeInUpBig" button_block="true" link="url:http%3A%2F%2Fwww.xhxfg.com%2Fproject%2Frw12fdieluoshirongduanqi%2F|title:AFRW12F%E5%9E%8B%E8%B7%8C%E8%90%BD%E5%BC%8F%E7%86%94%E6%96%AD%E5%99%A8%EF%BC%88%E5%B8%A6%E7%81%AD%E5%BC%A7%E7%BD%A9%EF%BC%89||"][vc_single_image image="107" img_size="medium" alignment="center" onclick="custom_link" css_animation="fadeInUpBig" link="/project/jingzhutongjian/"][vc_btn title="精銅鑄件" style="3d" color="primary" align="center" css_animation="fadeInUpBig" button_block="true" link="url:http%3A%2F%2Fwww.xhxfg.com%2Fproject%2Fjingzhutongjian%2F|title:%E8%B7%8C%E8%90%BD%E5%BC%8F%E7%86%94%E6%96%AD%E5%99%A8%E7%B2%BE%E9%93%B8%E9%93%9C%E4%BB%B6||"][vc_single_image image="145" img_size="medium" alignment="center" onclick="custom_link" css_animation="fadeInUpBig" link="/project/dieluoshirongduanqilingjian/"][vc_btn title="組裝零件" style="3d" color="primary" align="center" css_animation="fadeInUpBig" button_block="true" link="url:http%3A%2F%2Fwww.xhxfg.com%2Fproject%2Fdieluoshirongduanqilingjian%2F|title:%E8%B7%8C%E8%90%BD%E5%BC%8F%E7%86%94%E6%96%AD%E5%99%A8%E7%BB%84%E8%A3%85%E9%9B%B6%E4%BB%B6||"][/vc_column][vc_column width="1/3"][vc_single_image image="57" img_size="medium" alignment="center" onclick="custom_link" css_animation="fadeInUpBig" link="/project/rw12dieluoshirongduanqi2/"][vc_btn title="RW12-2型" style="3d" color="primary" align="center" css_animation="fadeInUpBig" button_block="true" link="url:http%3A%2F%2Fwww.xhxfg.com%2Fproject%2Frw12dieluoshirongduanqi2%2F|title:AFRW12-2%E5%9E%8B%E8%B7%8C%E8%90%BD%E5%BC%8F%E7%86%94%E6%96%AD%E5%99%A8||"][vc_single_image image="67" img_size="medium" alignment="center" onclick="custom_link" css_animation="fadeInUpBig" link="/project/abbdieluoshirongduanqi/"][vc_btn title="NCX12型" style="3d" color="primary" align="center" css_animation="fadeInUpBig" button_block="true" link="url:http%3A%2F%2Fwww.xhxfg.com%2Fproject%2Fabbdieluoshirongduanqi%2F|title:NCX12%E5%9E%8B%E8%B7%8C%E8%90%BD%E5%BC%8F%E7%86%94%E6%96%AD%E5%99%A8%EF%BC%88ABB%E5%9E%8B%EF%BC%89||"][vc_single_image image="110" img_size="medium" alignment="center" onclick="custom_link" css_animation="fadeInUpBig" link="/project/dieluoshirongduanqichongyajian/"][vc_btn title="沖壓件" style="3d" color="primary" align="center" css_animation="fadeInUpBig" button_block="true" link="url:http%3A%2F%2Fwww.xhxfg.com%2Fproject%2Fdieluoshirongduanqichongyajian%2F|title:%E8%B7%8C%E8%90%BD%E5%BC%8F%E7%86%94%E6%96%AD%E5%99%A8%E5%86%B2%E5%8E%8B%E4%BB%B6%EF%BC%88%E9%93%81%E4%BB%B6%EF%BC%8C%E4%B8%8D%E9%94%88%E9%92%A2%E4%BB%B6%EF%BC%8C%E9%93%9C%E4%BB%B6%E7%AD%89%EF%BC%89||"][vc_single_image image="283" img_size="medium" alignment="center" onclick="custom_link" css_animation="fadeInUpBig" link="/contactus/"][vc_btn title="其他產(chǎn)品" style="3d" color="primary" align="center" css_animation="fadeInUpBig" button_block="true" link="url:http%3A%2F%2Fwww.xhxfg.com%2Fcontactus|title:%E8%81%94%E7%B3%BB%E6%88%91%E4%BB%AC||"][/vc_column][vc_column width="1/3"][vc_single_image image="60" img_size="medium" alignment="center" onclick="custom_link" css_animation="fadeInUpBig" link="/project/rw12dieluoshirongduanqi3/"][vc_btn title="RW12-3型" style="3d" color="primary" align="center" css_animation="fadeInUpBig" button_block="true" link="url:http%3A%2F%2Fwww.xhxfg.com%2Fproject%2Frw12dieluoshirongduanqi3%2F|title:AFRW12-3%E5%9E%8B%E8%B7%8C%E8%90%BD%E5%BC%8F%E7%86%94%E6%96%AD%E5%99%A8||"][vc_single_image image="78" img_size="medium" alignment="center" onclick="custom_link" css_animation="fadeInUpBig" link="/project/rw11dieluoshirongduanqi/"][vc_btn title="RW11型" style="3d" color="primary" align="center" css_animation="fadeInUpBig" button_block="true" link="url:http%3A%2F%2Fwww.xhxfg.com%2Fproject%2Frw11dieluoshirongduanqi%2F|title:AFRW11%E5%9E%8B%E8%B7%8C%E8%90%BD%E5%BC%8F%E7%86%94%E6%96%AD%E5%99%A8||"][vc_single_image image="127" img_size="medium" alignment="center" onclick="custom_link" css_animation="fadeInUpBig" link="/project/dieluoshirongduanqipeijian/"][vc_btn title="配件" style="3d" color="primary" align="center" css_animation="fadeInUpBig" button_block="true" link="url:http%3A%2F%2Fwww.xhxfg.com%2Fproject%2Fdieluoshirongduanqipeijian%2F|title:%E8%B7%8C%E8%90%BD%E5%BC%8F%E7%86%94%E6%96%AD%E5%99%A8%E9%85%8D%E4%BB%B6||"][/vc_column][/vc_row]