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更新時間：2019-04-09 
瀏覽次數：1252在當(dang)前的(de)(de)新一(yi)輪農網改造中，對(dui)于(yu)導(dao)線(xian)(xian)供(gong)電(dian)(dian)(dian)半(ban)徑(jing)，不能片面的(de)(de)根據(ju)要求(qiu)(10KV線(xian)(xian)路(lu)供(gong)電(dian)(dian)(dian)半(ban)徑(jing)不大于(yu)15km，400V不大于(yu)0.5km)來規(gui)劃，要通(tong)過計(ji)算線(xian)(xian)路(lu)載流量(負(fu)荷(he)電(dian)(dian)(dian)流)和(he)電(dian)(dian)(dian)流密(mi)度合理選擇，對(dui)于(yu)已經(jing)運行(xing)的(de)(de)線(xian)(xian)路(lu)，定(ding)期(qi)檢(jian)查一(yi)下線(xian)(xian)路(lu)末(mo)端(duan)電(dian)(dian)(dian)壓(ya)偏(pian)差和(he)線(xian)(xian)路(lu)功率損失是否(fou)在規(gui)程要求(qiu)以內(這一(yi)點一(yi)定(ding)要通(tong)過計(ji)算才(cai)能確(que)定(ding))。所(suo)以在新建或(huo)改造架空(kong)電(dian)(dian)(dian)力線(xian)(xian)路(lu)、敷設低壓(ya)地(di)埋線(xian)(xian)路(lu)前，首先應(ying)對(dui)負(fu)荷(he)進行(xing)全(quan)面調查，根據(ju)低壓(ya)負(fu)荷(he)情況，合理選擇導(dao)線(xian)(xian)截面、導(dao)線(xian)(xian)型號(hao)和(he)供(gong)電(dian)(dian)(dian)半(ban)徑(jing)。對(dui)于(yu)超過供(gong)電(dian)(dian)(dian)半(ban)徑(jing)的(de)(de)線(xian)(xian)路(lu)可以通(tong)過轉移負(fu)荷(he)、縮短供(gong)電(dian)(dian)(dian)半(ban)徑(jing)、增(zeng)加導(dao)線(xian)(xian)截面、加裝(zhuang)無功補償裝(zhuang)置等方法來降低線(xian)(xian)損。SF6氣體純(chun)度分(fen)析儀(yi)上有電(dian)(dian)(dian)池充(chong)電(dian)(dian)(dian)指示(shi)燈和(he)電(dian)(dian)(dian)源(yuan)指示(shi)燈，充(chong)電(dian)(dian)(dian)接上AC220V即可，內置有過充(chong)過放保護的(de)(de)充(chong)電(dian)(dian)(dian)器(qi)。探(tan)測(ce)組件(jian)可快速(su)準確(que)地(di)測(ce)出SF6純(chun)度。
線路在架設安(an)裝過(guo)程中應盡量減少導線接(jie)頭，因接(jie)頭處(chu)接(jie)觸電(dian)(dian)阻大，運行后使(shi)電(dian)(dian)能損耗增大。地(di)埋線更應避免接(jie)頭，萬一出現接(jie)頭，要加以絕緣處(chu)理，嚴防漏(lou)電(dian)(dian)。
線路和設(she)備在運行(xing)過程中要加強(qiang)xun視(shi)維(wei)護(hu)，比如：絕(jue)(jue)緣(yuan)(yuan)子絕(jue)(jue)緣(yuan)(yuan)程度降低可能引起電(dian)量損(sun)耗，供(gong)電(dian)設(she)施上(shang)灰塵過多引起漏電(dian)損(sun)耗，電(dian)力系統中的(de)高(gao)次(ci)(ci)諧(xie)波(bo)引起的(de)線損(sun)等。高(gao)次(ci)(ci)諧(xie)波(bo)電(dian)流通過變(bian)壓器(qi)，可使變(bian)壓器(qi)的(de)鐵芯損(sun)耗明顯增加，從而變(bian)壓器(qi)出(chu)現過熱，效率降低。高(gao)次(ci)(ci)諧(xie)波(bo)的(de)干擾(rao)，往往還會(hui)導致供(gong)電(dian)空氣(qi)開關誤(wu)動作，造成電(dian)網停電(dian)，嚴重影響用電(dian)設(she)備的(de)正常(chang)工作。同時(shi)，高(gao)次(ci)(ci)諧(xie)波(bo)對通訊設(she)備也產生干擾(rao)信號。通過檢查(cha)維(wei)護(hu)，減少故障跳(tiao)閘次(ci)(ci)數(shu)，這樣也可以達到多供(gong)少損(sun)。
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