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Product Details:
Category：Vacuum Load Break Switch
Name：Outdoor load switch, High voltage disconnecting switch
Model：FZW32
Packing：Plastic bag & Wooden case or as requested
Delivery & Payment Terms:
Shipping time：Usually 21 days after the ordered confirmed
Payment：T/T, L/C, Western Union or Paypal
Trade term：FOB China port, or CIF
FZW32-12/24/40.5 Outdoor AC high voltage isolating vacuum load break switch is used for power supply network with rated voltages 12-35kV, rated current 630-1250A and rated frequency 50Hz. It can safely break the load current and break the current in some overhead lines, cable lines and capacitance current of capacitor bank in a certain distance.
The load break switch is composed of disconnecting blade, vacuum interrupter and operation mechanism. The advantage of vacuum extinguishing arc is a strong extinguishing arc ability, reliable performance, long life time, small volume. It conforms to standards of IEC62271-103.
Environment condition
– Ambient temperature: -30℃~+40℃
– Altitude: ≤3000m
– Relative humidity: monthly average ≤90%; daily average: ≤95%
– Wind pressure: ≤700Pa (equals to wind speed 34m/s)
– Air contamination degree: IV degree
– Earthquake intensity: ≤8 degree
– No corrosive or flammable gas
Technical Data
| 1 | Rated voltage (kV) | 12/24 | 40.5 | ||
| 2 | Rated current (A) | 630 | 1250 | ||
| 3 | Rated frequency (HZ) | 50/60 | 50/60 | ||
| 4 | Rated peak withstand current (dynamic stability) (kA) | 50 | 63 | ||
| 5 | Rated short time withstand current (thermo stability) (kA) | 20 | 25 | ||
| 6 | Rated short circuit duration (s) | 4 | 4 | ||
| 7 | Rated active load breaking current (A) | 630 | 1250 | ||
| 8 | Rated close loop breaking current (A) | 630 | 1250 | ||
| 9 | 5% rated active load breaking current (A) | 31.5 | 63 | ||
| 10 | Rated cable charging breaking current (A) | 10 | 10 | ||
| 11 | Rated no-load transformer breaking capacity (VA) | 1250 | 1250 | ||
| 12 | Main loop resistance (μΩ) | ≤90 | ≤100 | ||
| 13 | 1min power frequency withstand voltage (kV) | Dry | Phase to phase / Phase to earth | 42/50 | 95 |
| Between fractures | 49/60 | 115 | |||
| Wet | Phase to phase / Phase to earth | 30/40 | 85 | ||
| 14 | Lightning impulse
withstand voltage (kV) |
Phase to phase / Phase to earth | 75/125 | 185 | |
| Between fractures | 85/145 | 215 | |||
| 15 | Rated short-circuit making current (kA) | 50 | 63 | ||
| 16 | Mechanical life (Times) | 10000 | 10000 | ||
| 17 | Three phase closing asynchronous (ms) | ≤5 | ≤5 | ||
| 18 | Direction rotating of making contact blade (mm) | ≤2 | ≤2 | ||
| 19 | Main contact blade pressure (N) | 300±30 | 420±42 | ||
| 20 | Distance between charged body and phase to earth (mm) | ≥200 | ≥380 | ||
| 21 | Manual operating torque (Nm) | ≤300 | ≤300 | ||
Outline Dimension
1. Vacuum interrupter assemblies 2. Isolation knife assembly 3. Insulated rod
4. Post insulator 5. Central spring 6. Underframe
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