戶外38kV 35kV重合器分界斷路器電容器開關NKG（交流或直流）
NKG-40.5戶外真空斷路器是三相交流50HZ的戶外高壓電器設備；適用于24~40.5KV輸配電系統的控制和保護；也可適用于前落斷路器及開合電容器組的場合；本產品可配合看門狗分界控制器，重合器可實現電力系統智能化分界，重合控制。并可內附電流互感器供測量與保護用，斷路器可配彈簧或電磁操動機構，機械性能可靠，可頻繁操作，無火災和爆炸隱患；斷路器符合國家標準GB1984-1989《交流高壓斷路器》和國際電工委員會IEC56、IEC62271-100《高壓交流斷路器》的要求。斷路器的主要的特點：開斷性能優良，采用真空滅弧，開斷能力強，機械壽命高達10000次；結構簡單，面維護，不檢修周期長；絕緣性能好，抗污穢能力強；可根據客戶要求內裝電流互感器，計量精度達0.2S級，可實現三相互動保護。
NKG-40.5 outdoor vacuum circuit breaker is a three-phase AC 50Hz outdoor high-voltage electrical equipment; applicable to 24~40.5KV transmission and distribution system control and protection, but also can be used to fall in front of circuit breaker and closing a capacitor group occasions. This product can be matched with the watchdog boundary controller, recloser can realize power system intelligent demarcation and registration control. And containing current transformer for measurement and protection, circuit breaker can be with spring or electromagnetic actuator, reliable mechanical performance, frequent operation, no fire and explosion danger; circuit breaker conforms to the requirements of national standards GB1984-1989 "AC high voltage circuit breaker" and the International Electrotechnical Commission IEC56, IEC62271-100 the high-voltage alternating current circuit breakers,. The main characteristic of circuit breaker: breaking the excellent performance, using vacuum arc extinguish, strong breaking capacity, mechanical life of up to 10000 times; has the advantages of simple structure, maintenance, maintenance cycle for long; good insulation performance, strong anti contamination ability; can according to the customer requirements in the current mutual inductor, precision quantity of 0.2S grade, realize the protection of the three-phase interaction.
技術參數
| 項目 | 單位 | 參數 |
| 額定電壓 | KV | 15 | 24 | 36 | 40.5 |
| 額定絕緣水平 | 1min工頻耐壓 | 50 | 60 | 70 | 95 |
| 雷電沖擊耐壓（峰值） | 110 | 150 | 170 | 185 |
| 額定電流 | a | 630/1000/1250/1600/2000 |
| 額定短路開斷電流 | ka | 12.5/16/20/25/31.5 |
| 額定操作順序 |
| o-0.3s-co-180s-co |
| 額定短路電流開斷次數 | 次 | 12 |
| 額定短路關合電流（峰值） | ka | 50,63,80 |
| 額定峰值耐受電流 |
| 額定短時耐受電流 | ka | 20,25,31.5 |
| 真空滅弧室觸頭開距 | mm | 22+ -2 |
| 真空滅弧室觸頭超行程 | mm | 5+ -1 |
| 相間中心距離 | mm | 710 |
| 平均分閘速度 | ms | 1.5±0.20 | 1.5±0.20 | 1.5±0.20 | 1.5±0.20 |
| 平均合閘速度 | 0.7±0.20 | 0.7±0.20 | 0.7±0.20 | 0.7±0.20 |
| 觸頭合閘彈跳時間 | ≤2 | ≤2 | ≤2 | ≤2 |
| 三相分、合閘不同期性 | ≤2 | ≤2 | ≤2 | ≤2 |
| 合閘時間 | ≤145 | ≤145 | ≤150 | ≤150 |
| 分閘時間 | ≤70 | ≤70 | ≤70 | ≤70 |
| 機械壽命 | 次 | 10000 |
| 額定操作電壓及輔助回路額定電壓 | v | dc220,110,48,24 |
| ac220,110,48,24 |
| 沒相回路支流電阻（不含互感器） | μΩ | ≤100 |
| 動靜觸頭允許磨損累計厚度 | mm | 3 |
| 重量 | Kg | 1000 |
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