GW4-252(D)(W)
戶外高壓交流隔離開關

產品簡介
□成套隔離開關由GW4-252(D)(W)型隔離開關本體、CS14G或CS17G型人力操動機構、傳動附件等組成，也可配用CJ6型等電動機構。
□隔離開關屬雙柱水平開啟式，各單級都由基座、支柱絕緣子、出線座及觸頭等部分組成，兩支柱絕緣子相互平行地安裝在基座兩端的軸承上，且與基座垂直。主導電部分分別安裝在兩支絕緣子上方，隨支柱絕緣子作約90°轉動。
□隔離開關的軸承座設計成全密封結構，能防止灰塵、潮氣、有害氣體進入軸承座內部引起的卡阻現象；軸承座內部裝有推力球軸承和向心球軸承，將隔離開關的重力及水平分力由這兩種 軸承承擔，使隔離開關長期運行后的操作力矩不會增加。各極兩軸裝配間通過連板、調節螺桿等連接傳動。采用不銹鋼軸銷及自潤滑軸套，潤滑劑為高效二硫化鉬鋰基潤滑脂。
□出線座中的紫銅編織帶分別緊固在導電桿和接線板上，接線板供用戶連接線路之用。
□中間觸頭部分的觸指成對裝配，靠彈簧使觸指夾緊觸指座和觸頭，以達到觸頭與觸指間的磨損，提高使用壽命。
□隔離開關附有接地開關時，主導電回路與接地開關的聯鎖用基座上的扇形板與弧形板 ，在主導電回路合閘時，接地開關不可合閘，接地開關合閘時，主導電回路不可合閘。
□A?set?of?disconnector?consists?of?GW4-252(D)(W)disconnector?body，CS14G?or?CS17Gmanual?operating?mechanism,driven?accessories?and?so?on,it?
????can?also?match?with?CJ6?dynamoelectric?operating?mechanism．
□The?disconnector?has?horizontal?opened?double-strut?structure,and?every?single?pole?consists?of?base,post?insulator,outlet?base,contact?and?so?on.The?
????two?post?insulators?are?parallel,and?they?are?vertically?mounted?on?the?bearing?by?the?two?sides?of?the?base．The?main?conductive?parts?are?respectively?mounted?on?top?of?the?two?post?insulators,and?they?are?turning?for90°along?with?the?post?insulators.
□The?bearing?base?of?the?disconnector?has?totally-enclosed?structure,it?can?prevent?the?dust,humidity?and?deleterious?gas?come?into?the?inner?of?the?bearing?which?could?causethe?blockphenomenon.The?ball?thrust?bearing?and?annular?ball?bearing?is?mounted?in?the?bearing?base?for?bearing?the?weight?and?the?horizontal?component?to?make?sure?that?the?operating?force?moment?will?not?increase?when?the?disconnector?is?running?long?The?two?bearings?of?every?pole?are?connecting?and?driving?through?the?connecting?board，adjusting?screw?and?so?on.?It?uses?stainless?steel?shaft?pin?and?self?lubricating?sleeve?pipe,and?the?lubricant?is?molybdenum?disulphide?lithium?grease．
□The?red?copper?braids?in?the?outlet?base?are?respectively?fixed?on?the?conducting?rod?and?connecting?board,and?the?connecting?board?is?used?for?connecting?the?circuit.
□The?contact?fingers?of?the?intermediate?contact?parts?are?assembled?in?pairs,it?uses?springs?to?clamp?contact?finger?base?and?contact?to?improve?the?usefuI?life.
□The?fanning?plates?and?arc?plates?in?the?base?are?used?to?insure?the?linking?between?main?conductive?loop?and?ground?switch?when?the?disconnector??matches?with?ground?switch.The?ground?switch?can&＃39;t?switch-on?when?the?main?conductive?loop?is?switching-on;the?main?conductive?can&＃39;t?switch-on?when?the?ground?switch?is?switching-on.