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技术参数 / Technical parameter مอ׈৯
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VGZ-12 真空断路器 - 二工位隔离开关组合电器
VGZ-12 VCB - two-station isolation switch combination of electrical appliances

序号 项目 单位 参数
Serial number Project Unit Parameter
1 额定电压 Rated voltage kV 12
2 额定频率 Rated frequency Hz 50
1min 工频耐受电压 对地、相间 To the ground and interphase 42
1min power frequency withstand voltage 隔离断口 Isolating distance 48
额定绝缘水平
Rated 雷电冲击耐受电压 ( 峰值 ) 对地、相间 To the ground and interphase 48
3 Lightning impulse withstand voltage (peak) kV
insulation 隔离断口 Isolating distance 75
level 辅助 / 控制回路 1min 工频耐受电压（对地）
Auxiliary / control loop 1min power frequency 2
withstand voltage (to ground)
4 额定电流 Rated current A 630/1250(1600A 可定制 )
额定短路开断电流 主回路 / 接地开关 Main circuit / earthing switch 31.5/4s
5 kA
Rated short-circuit breaking current 接地回路 Ground loop 27.4/4s
额定峰值耐受电流 主回路 / 接地开关 Main circuit / earthing switch 80
6 kA
Rated peak withstand current 接地回路 Ground loop 68.5
额定短路开断电流及次数 kA/
7 31.5/30
Rated short-circuit breaking current and frequency 次
额定电缆充电开断电流
8 A 31.5
Rated cable charging breaking current 技术参数
断路器额定操作顺序
9 O-0.3-CO-180s-CO
Circuit breaker rated operating sequence
10 机械寿命 Mechanical life 断路器 / 隔离开关 VCB/ disconnector 次 10000/3000
11 防护等级 Protection class 开关设备外壳 Switchgear housing IP4X Technical parameter

VGF-12 真空负荷开关 - 二工位隔离开关组合电器
VGF-12 VLS - two-station isolation switch combination of electrical appliances

序号 项目 单位 参数
Serial number project Unit parameter
额定电压
1 kV 12
Rated voltage
2 额定频率 Rated frequency Hz 50
1min 工频耐受电压 对地、相间 To the ground and interphase 42
1min power frequency withstand voltage 隔离断口 Isolating distance 48
额定绝缘水平
Rated 雷电冲击耐受电压 ( 峰值 ) 对地、相间 To the ground and interphase 48
3 Lightning impulse withstand voltage (peak) kV
insulation 隔离断口 Isolating distance 75
level 辅助 / 控制回路 1min 工频耐受电压（对地）
Auxiliary / control loop 1min power frequency 2
withstand voltage (to ground)
4 额定电流 Rated current A 630/1250
额定短路开断电流 主回路 / 接地开关 Main circuit / earthing switch 25/4s
5 kA
Rated short-circuit breaking current 接地回路 Ground loop 21.7/4s
额定峰值耐受电流 主回路 / 接地开关 Main circuit / earthing switch 63
6 kA
Rated peak withstand current 接地回路 Ground loop 54.5
额定有功负载开断电流
7 A 1250
Rated Active load breaking current
8 额定闭环断电流 Rated closed loop current A 1250
9 5% 额定有功负载开断电流 5%Rated Active load breaking current A 31.5
额定电缆充电开断电流
10 A 10
Rated cable charging breaking current
11 额定有功负载开断次数 Rated active load number A/ 次 630/100
12 接地故障电流开断 Ground fault breaking current A/ 次 31.5/10
接地故障条件下的线路和电缆充电电流开断
13 Under the condition of grounding fault line and cable A/ 次 17.4/10
charging breaking current
14 机械寿命 Mechanical life 断路器 / 隔离开关 VCB/ disconnector 次 10000/3000
15 防护等级 Protection class 开关设备外壳 Switchgear housing IP4X
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