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Product Details:
Category：Outdoor SF6 Switchgear
Name：Pole Mount SF6 circuit breaker
Model：GKLW-12
Packing：Plastic bag & Wooden case or as requested
Delivery & Payment Terms:
Shipping time： Usually 30 days after the ordered confirmed
Payment：T/T, L/C, Western Union or Paypal
Trade term：FOB China port, or CIF
Environment condition
– Ambient temperature: -40℃～+40℃
– Altitude: ≤3000m
– Wind pressure: ≤700Pa(equals to wind speed 34m/s)
– Air contamination degree: IV degree
– Earthquake intensity: ≤8 degree
– Not be polluted by corrosive or flammable gas, vapor and salt-fog.
Feature
– Adopt insulated cable incoming and outgoing line, raise electrical gap and creepage distance;
– Install manual interlock device, to prevent misoperation while power failure;
– Overvoltage & undervoltage protection;
– Triple reclosing, local & remote switching control;
– To cut off rapidly the fault of unidirectional grounding, interphase short circuit within its boundaries
Technical Data
| Rated voltage | kV | 12 | |||
| Rated insulation level
(SF6 gas under 0.25Mpa, 20℃) |
Lightning impulse withstand voltage(full wave peak) | kV | 75 | ||
| 1min power frequency withstand voltage:
Phase to phase(earth)/fracture |
42/48 | ||||
| Wet withstand voltage test | 34 | ||||
| Reverse-phase impulse withstand voltage | 85 | ||||
| insulation level
(SF6 gas under 0Mpa, 20℃) |
1min power frequency withstand voltage | kV | 30 | ||
| 1min reverse-phase withstand voltage | 30 | ||||
| 5min max. phase voltage | 9 | ||||
| Rated current | A | 630 | |||
| Rated breaking current | kA | 16 | 20 | ||
| Breaking current under 0Mpa | A | 630 | |||
| Mechanical life | Times | 6000 | |||
| Rated operating sequence | Manual | (O)-180S-(CO)-180S-(CO) | |||
| Motor | (O)-0.3S-(CO)-180S-(CO) | ||||
| Rated closing current | kA | 40 | 50 | ||
| Peak withstand current | kA | 40 | 50 | ||
| Rated short time withstand current | kA | 16/4s | 20/4s | ||
| Rated cable charging breaking current | A | 25 | |||
| Rated line charging breaking current | A | 16 | |||
| Contact total travel | mm | 58±2 | |||
| Contact overtravel | mm | 22±1 | |||
| Three phase synchronism (C-O) | mm | ≤1.5 | |||
| Main loop resistance per phase (excluding cable) | μΩ | Terminal | ≤130 | ||
| Cable | ≤650 | ||||
| Inherent closing time | Motor | S | ≤0.06 | ||
| Inherent opening time | Manual | S | ≤0.06 | ||
| Motor | ≤0.04 | ||||
| Yearly SF6 gas leakage | Year | ≤0.5% | |||
| SF6 gas rated working pressure | MPa | 0.35(20℃) | |||
| SF6 gas min. working pressure | MPa | 0.25(20℃) | |||
| SF6 Weight | Manual | KG | 122 | ||
| Motor | 130 | ||||
| SF6 gas moisture content | ppm | ≤150 | |||
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