FZW32-24 Series Outdoor High Voltage Isolating Vacuum Load Break Switch
FZW32-24 Series Outdoor High Voltage Isolating Vacuum Load Break Switch
Application
FZW32-24 type outdoor high voltage isolating vacuum break load switch is a new type of load switch which is the integration of mature experience of domestic existing load switch and advanced technology design of external. This load break switch is composed of disconnector, vacuum interrupter and operating mechanism and other parts. By using the principle of vacuum interrupter, with strong arcing ability, reliable performance, long service life, small volume, no explosion danger, no pollution etc advantage. The product can be used in transmission and distribution system of electric power, metallurgy, mine, chemical industry and other departments as control equipment, especially suitable for frequent operation place.
Specifications
Environmental Conditions
1.Altitude ≤1000m;
2.Ambient air temperature -30~+40℃;
3.Relative humidity: daily average ≤95%, monthly average ≤90%;
4.Without frequent violent vibration.
Parameter
Technical Parameters
| NO. | Name | Unit | Value | |
| 1 | Rated voltage | KV | 24 | |
| 2 | Rated frequency | Hz | 50 | |
| 3 | Rated current | A | 1250 | |
| 4 | Rated active load breaking current | A | 1250 | |
| 5 | Rated closed loop breaking current | A | 1250 | |
| 6 | 5%rated active load breaking current | A | 31. 5 | |
| 7 | Rated cable charging breaking current | A | 10 | |
| 8 | Rated breaking capacity of no-load transformer | KVA | 1600 | |
| 9 | Rated breaking capacitor bank current | A | 100 | |
| 10 | 1min power frequency withstand voltage: vacuumfracture/phase-to-phase, phase-to earth, isolating fracture | KV | 50/65/79 | |
| 11 | Lightning impulse withstand voltage: phase-to phase,phase-to-earth/isolating fracture | KV | 125/145 | |
| 12 | Rated short time withstand current(thermal stability) | KA | 25 | |
| 13 | Rated short-circuit duration | S | 4 | |
| 14 | Rated peak withstand current(dynamic stability) | KA | 63 | |
| 15 | Rated short-circuit closing current | KA | 63 | |
| 16 | Mechanical life | Times | 10000 | |
| 17 | Vacuum interrupter contact erosion limit | mm | 0.5 | |
| 18 | Manual operating torque | Nm | ≤200 | |
|
19 |
Load break switch vacuum interrupter assembling adjustment | Clearance between opencontacts | mm | 10±1 |
| Average opening speed | m/s | 1.5±0.2 | ||
| Three-phase openingasynchronism | ms | <5 | ||
| Three-phase closingasynchronism | ms | <2 | ||
| Distance between chargedbodies and phase-to-earth | mm | >300 | ||
| Auxiliary circuit resistance | μΩ | ≥400 | ||
Installation Ways, Transverse Width and Phase-to-phase Distance
| Installation way | Transverse width | AB phase-to-phase distance | BC phase-to-phase distance |
| Horizontal / vertical | 1225mm | 500mm | 500mm |
Basic Structure Drawing
- Vacuum interrupter 2. Opening spring
- Disconnector components 4. Insulating rod
- Frame 6. Spring mechanism
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Product Category
hot-sale product
Vacuum Load Break Switch
Single pole vertical installation
Horizontal installation
Pole top installation
Indoor high-voltage SF6 load break switch is widely used in the 11~36kV electric power distribution systems.
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