10KV 三相三相 AC コラム上部スイッチ中国メーカー

10KV Three phase Three-phase AC Column Upper Switch
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オプション:

10KV/630A

10KV/250A

10KV/200A

11KV/200A

11KV/630A

11KV/315A

製品 説明

The voltage Isolating switch (high voltage disconnector) is mainly used to reliably isolate the parts that need to be cut off from the live pieces in the high-voltage distribution device to ensure the safety of maintenance work.

The contacts of the isolation switch are all exposed to the air and have obvious disconnection points. The isolation switch does not have an arc extinguishing device, so it cannot be used to cut off load current or short-circuit current. さもないと, under high voltage, the disconnection point will generate a strong arc, making it difficult to extinguish. It may even cause arcing (phase to ground or phase to phase short circuit), burn equipment, and endanger personal safety, causing a severe accident called “pulling the isolation switch with the load.” Isolation switches can also be used to switch specific circuits to change the operation mode of the system.

Symbols for high voltage isolation switches:

1. In the commonly used text symbol comparison table for electrical equipment, the symbol of the isolation switch is QS. The electrical symbol symbol is specified in IEC61636-1, not an English abbreviation but a combination of letter meanings. Q represents the switching device of the SWITCHING DEVICE FOR POWER CIRCUIT power circuit, and S represents the switching device selector of the SWITCHING DEVICE FOR Control CIRCUIT SELECTOR control, memory, and signal circuits.

2. High-voltage isolation switches are necessary switching devices in the electrical systems of power plants and substations and are generally required to be used with high-voltage circuit breakers.

3. High voltage isolation switches are suitable for indoor devices with three-phase AC 50Hz and a rated voltage of 12KV. They are used to connect, cut off, or convert circuits of high-voltage equipment under voltage and load conditions.

4. Commonly used high voltage isolation switches include GN19-10 and GN19-10C, while similar old products include GN6-10 and GN8-10.

We also produce other distribution equipment such as Vacuum Circuit Breakers, 電源ケーブル, 配電キャビネット, 等. Please feel free to leave a message for consultation.

会社概要Luoyang Datang EnergyPhotoelectron は、さまざまな高電圧および低電圧の電力サポート製品のメーカーです.変圧器の付属品にはタップチェンジャーが含まれます, 圧力リリーフバルブ, 温度計, 吸湿剤, ガスリレー, オイルレベルゲージ, バタフライバルブ, クロスフローファン, 等.高圧配電機器には、高圧および低圧絶縁ブッシングが含まれます, ケーブル, 断路器, 真空遮断器, 高圧絶縁体, 低圧絶縁, セラミック絶縁体, 等.設立以来, 同社は常に科学とテクノロジーによって導かれてきました, 確かな技術に裏付けられた, 海外の先進技術を積極的に導入, そして常に製品を改善し、改善しました. 長年にわたる専門的な管理を経て, 製品は国中でよく売れ、バングラデシュにも輸出されています。, ミャンマー, インド, ロシア, インドネシア, タイ, その他の東南アジアおよびアフリカ諸国.ようこそ訪問, 調査する, そして交渉する.

製品の属性

モデル番号.: GW9-12/630

種: 空気, Mini

極数: 1, 2, 3, 4

包装 & 配達