(1) 電容器屬于(yu)電(dian)(dian)流(liu)穩定型元件，其電(dian)(dian)流(liu)只與(yu)電(dian)(dian)壓和頻率有關，與(yu)變壓器(qi)的負(fu)荷電(dian)(dian)流(liu)無關，在電(dian)(dian)壓正常沒(mei)有諧(xie)波的情況下電(dian)(dian)容器(qi)不會過(guo)載。
(2)在電壓過高的情(qing)況下(xia)，完全(quan)可以由(you)控制(zhi)器來(lai)實(shi)現保(bao)護功(gong)能，不需要由(you)熱繼電器來(lai)實(shi)現保(bao)護功(gong)能。
(3) 在諧波超標的情況下(xia)，電(dian)(dian)容(rong)(rong)器(qi)(qi)(qi)(qi)(qi)會(hui)出現過(guo)載(zai)(zai)，雖然熱(re)(re)(re)繼電(dian)(dian)器(qi)(qi)(qi)(qi)(qi)可以將電(dian)(dian)容(rong)(rong)器(qi)(qi)(qi)(qi)(qi)切(qie)除，但是如果控(kong)(kong)制器(qi)(qi)(qi)(qi)(qi)不(bu)能夠測量諧波，那(nei)么就會(hui)繼續(xu)投入(ru)(ru)新的電(dian)(dian)容(rong)(rong)器(qi)(qi)(qi)(qi)(qi)，出現新的過(guo)載(zai)(zai)現象。如果熱(re)(re)(re)繼電(dian)(dian)器(qi)(qi)(qi)(qi)(qi)設置(zhi)在自動(dong)復(fu)位狀態，則過(guo)一會(hui)被(bei)切(qie)除的電(dian)(dian)容(rong)(rong)器(qi)(qi)(qi)(qi)(qi)還會(hui)重(zhong)新投入(ru)(ru)運(yun)行(xing)，繼續(xu)過(guo)載(zai)(zai)狀態，并(bing)且會(hui)干(gan)擾控(kong)(kong)制器(qi)(qi)(qi)(qi)(qi)的運(yun)行(xing)，因為控(kong)(kong)制器(qi)(qi)(qi)(qi)(qi)不(bu)知(zhi)道哪(na)些電(dian)(dian)容(rong)(rong)器(qi)(qi)(qi)(qi)(qi)已經被(bei)熱(re)(re)(re)繼電(dian)(dian)器(qi)(qi)(qi)(qi)(qi)切(qie)除，哪(na)些電(dian)(dian)容(rong)(rong)器(qi)(qi)(qi)(qi)(qi)即將恢復(fu)運(yun)行(xing)。如果熱(re)(re)(re)繼電(dian)(dian)器(qi)(qi)(qi)(qi)(qi)設置(zhi)在手(shou)動(dong)復(fu)位狀態，則最終所(suo)有的電(dian)(dian)容(rong)(rong)器(qi)(qi)(qi)(qi)(qi)將統(tong)統(tong)被(bei)切(qie)除，在手(shou)動(dong)復(fu)位之前，即使諧波消失，電(dian)(dian)容(rong)(rong)器(qi)(qi)(qi)(qi)(qi)也(ye)無法重(zhong)新投入(ru)(ru)運(yun)行(xing)。因此，在諧波嚴(yan)重(zhong)的情況下(xia)，熱(re)(re)(re)繼電(dian)(dian)器(qi)(qi)(qi)(qi)(qi)的保護(hu)效果遠(yuan)遠(yuan)不(bu)如控(kong)(kong)制順具有諧波保護(hu)功能效果好。
希拓電氣自主研發的低壓混合無功補償(chang)裝置是一種(zhong)有源(yuan)（SVG）和無(wu)源（TSC）相結合(he)的混合(he)補(bu)(bu)償(chang)方案。單獨(du)的TSC通(tong)過控(kong)制投入電(dian)網(wang)的電(dian)容組(zu)數，屬于有級(ji)補(bu)(bu)償(chang)，精(jing)度(du)低(di)，響應時間慢(man)。SVG可以補(bu)(bu)償(chang)不平衡電(dian)流，屬于無(wu)級(ji)補(bu)(bu)償(chang)，補(bu)(bu)償(chang)精(jing)度(du)高(gao)，響應時間快，但純SVG補(bu)(bu)償(chang)造價高(gao)。
投切模塊采用的是晶閘管投切模塊，模塊主要由雙向晶閘管，觸發電路，吸收電路，保護電路，智能型散熱片組成。自主專利技術保證電壓過零觸發，電流過零斷開，真正實現投切無涌流，跟隨速度快，有效補償沖擊性負荷，平均響應時間小于15ms，很好地取代傳統投切裝置。
SVG+TSC混(hun)合補(bu)償方(fang)案結合兩者的(de)優點，TSC補(bu)嘗無(wu)功(gong)，SVG補(bu)嘗不(bu)平衡，通過統一控制(zhi)實現對負載的(de)無(wu)級快(kuai)速補(bu)償，更(geng)具性價(jia)比！
希(xi)拓電(dian)(dian)氣（常(chang)州）有限公司作為一家(jia)集研(yan)發、生產、銷售和服務于一體的高新技(ji)術企業，自主研(yan)發的無(wu)(wu)功補(bu)償(chang)裝置充分考慮了城鄉和工業電(dian)(dian)網的特點，可以保證(zheng)城市低壓配電(dian)(dian)網無(wu)(wu)功補(bu)償(chang)的安全(quan)、可靠和準確(que)性。同時作為常(chang)州市“龍城英才計劃(hua)”領軍單位，我們(men)致(zhi)力于為用(yong)戶提供電(dian)能(neng)質量、能(neng)效管理和用(yong)電(dian)安全的系(xi)統解(jie)決方案，為用(yong)戶高效和安全用(yong)電(dian)保駕護航(hang)。期待您的來(lai)電(dian)咨詢！
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