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XGN66-12
固定式封闭开关设备
Fixed enclosed switchgear
VS1-12型真空断路器主要技术参数/Main technical parameters of vacuum circuit breaker
名称 单位 参数
Name Unit Parameter
额定电压 Rated voltage kV 12
额定电流 Rated current A 630,1250
额定短路开断电流 Rated short-circuit breaking current kA 20,25,31.5
额定短路关合电流 Rated short circuit closing current kA 50,63,80
额定短时耐受电流(4s有效值)
Rated short-time withstand current (4s rms) kA 20,25,31.5
额定峰值耐受电流(峰值) Rated peak withstand current (peak) kA 50,63,80
次
机械寿命 Mechanical life 10000
Timess
额定短路开断电流开断次数 次
Rated short-circuit breaking current breaking times Timess 50
额定操作顺序 Rated operation sequence 分-0.3s-合分-180s-合分
触头开距 Contact opening distance mm 11±1
触头接触行程 Contact contact stroke mm 4±0.5
相间中心距 Interphase center distance mm 210
分闸速度 Opening speed m/s 1.2±0.2
合闸速度 Closing speed m/s 0.6±0.2
分闸时间 Opening time ms ≤60
合闸时间 Closing time ms ≤75
三相分闸同期性 Three-phase tripping synchronization ms ≤2
合闸弹跳 Closing bounce ms ≤2
回路电阻 Loop resistance μΩ ≤45
触头累积允许磨损厚度
Contact accumulation allows wear thickness mm 3
注:其它电器元件的技术参数见其各自的使用说明书。开关柜额定电流大于1600A的方案须与本公司协商解决。
Note: The technical parameters of other electrical components can be found in their respective operating instructions. The scheme of the switchgear with rated current greater than 1600A
shall be settled by negotiation with the company.
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