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柱上SF6負荷開關

柱上SF6負荷開關

Overhead Distribution Switch

G&W公司可以提供各式各樣的15.5kv到38kv等級柱上負荷開關,對安裝方式,開關可以是直接安裝在電線桿上,也可以交叉臂的安裝方式,而對于開關的操作,可以使手動操作,或者通過遠程控制箱,配電自動化或者自動轉輸控制包,具體的形式需要依據系統的等級需求。

G&W解決方案的優勢

對于操作人員,最大限度地安全--G&W柱上負荷開關的關鍵的觸頭組件完全被保護在一個密閉的,SF6充氣的金屬箱體里面。SF6是一種無毒,非可燃介質,具有優異的滅弧性能。負荷開關的內部的觸頭位置指示牌清晰可見,而外部的操作機構可以被鎖住以防止誤操作,而且如果箱體內的壓力低于可操作規定的壓力時,電子控制箱會禁止機構操作,其結果就是對于操作人員的最大的保護。

免維護- G&WSF6 柱上負荷開關是根據IEEE和IEC標準,直接在工廠測試,密封,產品高壓測試,操作開關前需要檢查SF6的壓力

套管- G&W公司可以根據用戶需求,提供各式各樣的套管,套管形式可以包括磁套管及具有彈性的獨特的裝有電壓互感器的磁套管

 

SF6配電開關和空氣開關相比具有以下優勢

    特別是在重要的自動化配電方案中,隨著開關操作次數的增加,負載性能的顯著提高,

  • 更長的使用壽命
  • 免維護
  • 更加方便用于自動化

 

最高系統電壓/kV

15.5

27

38

 

電壓等級/kV

12

24

36

 

雷電沖擊耐壓/kV

110

125

150

 

一分鐘工頻交流耐壓/kV

42

60

70

 

額定持續工作電流A

630

630

630

 

額定短時耐受電流, kA 4秒

12.5

12.5

20

 

負荷開關故障關合電流kA asym

 

31

31

40

 


Above tested to 500 load break operations at full rated current at 15kV (630A*) and 2000 mechanical operations

對于15kv系統電壓下,630amp的額定電流,開關通過500次負荷操作和2000次的機械操作。.

* 350 @ 25kV

 

 

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