Page 48 - 山东开川电力设备有限公司
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KCXGN -12
固体绝缘环网柜
Solid insulated ring network cabinet
主要技术参数/The main technical parameters
项目 V单位 Unit C单位 Unit F单位 Unit
Project
额定电压(kV) 12 12 12
Rated voltage (kV)
额定电流(A)
Rated current (A) 630 1250 630 125
额定频率(Hz)
Rated frequency (Hz) 50
工频耐受电压(kV)相间、相对地/断口 42/48
Power frequency withstand voltage (kV) phase, relative ground / fracture
雷电冲击耐受电压(kV)相间、相对地/断口 75/85
Lightning impulse withstand voltage (kV) phase, relative / fracture
额定短路开断电流(kA) 31.5
Rated short-circuit breaking current (kA) 25 31.5 (熔断器 Fuse)
额定电缆充电开断电流(A)
Rated cable charging breaking current (A) 25 31.5 10
额定短时耐受电流(kA) 25 31.5 20
Rated short-time withstand current (kA)
额定短时耐受时间(S)
Rated short-time withstand time (S) 4 4 4
额定峰值耐受电流(kA)
Rated peak withstand current (kA) 63 80 50
额定短时关合电流(kA) 63 80 50
Rated short-time closing current (kA)
额定转移电流(A) 3150
Rated transfer current (A)
额定交接电流(A)
Rated junction current (A) 3700
局部放电(PC)
Partial discharge (PC) ≤20
防护等级 柜体/开关 IP4X/IP67
Protection level Cabinet/switch
主回路电阻(μΩ) ≤150 ≤150 ≤700
Main loop resistance (μΩ)
机械寿命(次)主开关/隔离开关
Mechanical life (times) main switch / isolating switch 10000/3000 10000/3000 5000/3000
功能单元尺寸示意图(mm)/Functional unit size diagram (mm)
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PGG
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