Technical parameters of switchgear
Item | Unit | Data | |||
Rated voltage Rated frequency Rated current of circuit breaker Rated current of switchgear Rated peak withstand current (4s) Rated peak withstand current (peak) Rated short-circuit breaking current Rated short-circuit making current (peak) |
KV Hz A A KA KA KA KA |
3.6,7.2,12 50 630,1250,1600,2000,2500,3150,4000 630,1250,1600,2000,2500,3150,4000 16,20,25,31.5,40,50,63 40,50,63,80,100,125,160 16,20,25,31.5,40,50,63 40,50,63,80,100,125,160 |
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Rated insulation level |
1min power frequency withstand voltage Lightning impulse withstand voltage |
KV KV |
24 40 |
32 60 |
42 75 |
Protection class | The shell is IP4X, and it is IP2X when the compartment door and circuit breaker chamber door are opened |
Technical parameters of VD4 and VS1-12 vacuum circuit breaker
Item | Unit | Data | |||
Rated voltage Rated frequency Rated current of circuit breaker Rated peak withstand current (4s) Rated peak withstand current (peak) Rated short-circuit breaking current Rated short-circuit making current (peak) |
KV Hz A A KA KA KA KA |
3.6,7.2,12 50 630,1250,1600,2000,2500,3150,4000 16,20,25,31.5,40,50,63 40,50,63,80,100,125,160 16,20,25,31.5,40,50,63 40,50,63,80,100,125,160 |
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Rated insulation level | 1min power frequency withstand |
KV KV |
42 75 |
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Rated operating sequence Rated short-circuit current breaking times Mechanical life |
Times Times |
O-0.3s-CO-180s-CO 50 2000 |
Item | Unit | Data | |||
Clearance between open contacts Overtravel Phase-to-phase central distance Closing contact bounce time Three-phase opening asynchrony |
mm mm mm ms ms |
11±1 4±0.5 210±0.5,250±0.5,275±0.5 ≤2 ≤2 |
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Breaking time at operating voltage of |
Max Rating Min |
ms ms |
≤50 ≤50 ≤60 |
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Closing time Average closing speed Average closing speed Conductive circuit resistance Contact pressure |
ms m/s m/s μΩ N |
≤100 0.9-1.2 0.6-0.8 ≤40 3200±100 |
Item | Unit | Value | |
Rated operating voltage | Closing coil | V | DC220,110 |
Closing coil | V | DC220,110 | |
Coil power | Closing coil | W | 245 |
Closing coil | W | 245 | |
Power of energy-storage motor Rated voltage of energy-storage motor Energy-storage time |
W V S |
50 DC220,110 ≤10 |
Item | Unit | Parameter |
Rated voltage Rated frequency Rated current Rated short-circuit breaking current Rated short-circuit making current Rated peak withstand current Rated short-time withstand current Rated short-circuit duration Rated breaking current of single capacitor bank Rated breaking current of back-to-back capacitor bank Power frequency withstand voltage Lightning impulse withstand voltage Rated short-circuit current breaking times Mechanical life |
KV Hz A KA KA KA KA s A A KV KV Times Times |
12 50 1250 31.5 80 80 31.5 4 630 400 42 75 50 1000 |
Rated operating sequence | O-0.3S-CO-180s-CO | |
Opening time Closing time Control voltage Power of closing coil Power of opening coil |
ms ms V VA VA |