結構與特性:
TBB系列自動投切裝置具備智能化的檢測控制性能,可適用于智能化無人值守變電站,其結構形式主要有戶外框架式、戶外預裝式(箱式)和戶內柜式三種。自動投切無功補償裝置是將原來1臺主變配置1組電容器實行整投整切的模式,改為由多組電容器不等(或等)容量調節投切模式。
控(kong)(kong)制(zhi)(zhi)原(yuan)理以電(dian)(dian)(dian)(dian)壓(ya)無(wu)功(gong)綜(zong)合控(kong)(kong)制(zhi)(zhi)為主,控(kong)(kong)制(zhi)(zhi)器(qi)按照(zhao)電(dian)(dian)(dian)(dian)壓(ya)和(he)無(wu)功(gong)缺(que)額的多少投(tou)切(qie)電(dian)(dian)(dian)(dian)容(rong)器(qi)。為防(fang)(fang)止電(dian)(dian)(dian)(dian)壓(ya)無(wu)功(gong)分離控(kong)(kong)制(zhi)(zhi)可能(neng)造成的頻繁調節(jie)變壓(ya)器(qi)有載分接頭和(he)頻繁投(tou)切(qie)電(dian)(dian)(dian)(dian)容(rong)器(qi),防(fang)(fang)止電(dian)(dian)(dian)(dian)壓(ya)調節(jie)與(yu)電(dian)(dian)(dian)(dian)容(rong)投(tou)切(qie)的沖突,控(kong)(kong)制(zhi)(zhi)器(qi)采用電(dian)(dian)(dian)(dian)壓(ya)無(wu)功(gong)綜(zong)合自動控(kong)(kong)制(zhi)(zhi)方案。電(dian)(dian)(dian)(dian)壓(ya)無(wu)功(gong)綜(zong)合控(kong)(kong)制(zhi)(zhi)方案采用二(er)維模糊(hu)“十二(er)區”控(kong)(kong)制(zhi)(zhi)準則(ze)。控(kong)(kong)制(zhi)(zhi)的基(ji)本原(yuan)則(ze)是 “保證電(dian)(dian)(dian)(dian)壓(ya)合格,實現無(wu)功(gong)平衡(heng),減(jian)少調節(jie)次數(shu)”。
功能特點:
1、跟蹤補償無功功率,不過補,不欠補,降低損耗,抑制系統諧波。
2、成套裝置采用模塊化設計原理,隨著負荷增加,允許追加補償模塊。
3、控制電容器組實現投切過程自動化、智能化、最優化,具備手動、自動、遙控三種控制模式。
4、可控制1-2段母線,2-8組電容,可綜合控制,也可獨立控制。
5、電容器組可等容分組,也可以根據用戶負荷變化情況組合不同容量。
6、單組電容器組配置獨立的保護單元,具備過壓、欠壓、過流、速斷、不平衡電壓保護。
7、控制器具備閉鎖、自診斷及現場參數設置等功能。
8、電容器專用真空投切開關體積小,重量輕,壽命長,無重燃等優點。
9、成套裝置具備快速放電、限制合閘涌流和操作過電壓等功能。
10、戶(hu)內柜式(shi)和(he)戶(hu)外(wai)預裝(zhuang)(zhuang)式(shi)結構占地面積小,安裝(zhuang)(zhuang)方便(bian),裝(zhuang)(zhuang)設智能化檢測控制模(mo)塊,并可遠程檢測裝(zhuang)(zhuang)置(zhi)運行狀況。