KYN28-12 Armored Draw-Out AC Metal-Clad Switchgear
Product Overview
The KYN28A Armored Draw-out AC Metal-clad Switchgear is designed for three-phase 50Hz AC power systems, used for power reception, distribution, circuit control, protection, and monitoring. This product complies with the following standards: ● GB3906 3.6kV~40.5kV AC Metal-clad Switchgear and Controlgear ● GB/T11022 Common Technical Requirements for High-voltage Switchgear and Controlgear ● IEC62271:2000 AC Metal-clad Switchgear and Controlgear for Rated Voltages above 1kV and up to 52kV ● DL/T404 3.6kV~40.5kV AC Metal-clad Switchgear and Controlgear
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Product Features
- Product Shell Structure The product casing is fully assembled with bolts using aluminum-zinc coated steel plates, formed by multi-stage bending via CNC machine tools. This structure ensures high mechanical strength, effectively maintaining product integrity and aesthetics. The cabinet doors are finished with plastic spray coating, offering strong impact resistance and corrosion protection. The shell achieves an IP4X protection rating.
- Circuit Breaker Configuration The main switch supports VS1-type vacuum circuit breakers, as well as various domestic series (e.g., VD4, VH1, VK, VJD).
- Insulation & Technical Advantages
- For any circuit breaker type, the air insulation distance of bare conductors is ≥125mm, and composite insulation ≥60mm.
- All circuit breakers feature long service life, high parameters, minimal maintenance, and compact design.
Product Details & Applications
Operating Conditions
- Ambient Temperature: -15°C to +40°C
- Humidity Conditions:
- Daily average relative humidity ≤95%, daily average vapor pressure ≤2.2kPa
- Monthly average relative humidity ≤95%, monthly average vapor pressure ≤1.8kPa
- Altitude: ≤1000m
- Seismic Intensity: ≤8 degrees
- Surrounding Air: Free from significant contamination by corrosive/flammable gases, water vapor, etc.
- Vibration: Installation site free from frequent severe vibration
Technical Specifications
| Items | Unit | Data | ||
|---|---|---|---|---|
| Rated voltage | KV | 3.6, 7.2, 12 | ||
| Rated frequency | Hz | 50 | ||
| Rated current of circuit breaker | A | 630, 1250, 1600, 2000, 2500, 3150, 4000 | ||
| Rated current of switchgear | A | 630, 1250, 1600, 2000, 2500, 3150, 4000 | ||
| Rated short-time withstand current | KA | 16, 20, 25, 31.5, 40, 50 | ||
| Rated peak withstand current (peak value) | KA | 40, 50, 63, 80, 100, 25 | ||
| Rated short-circuit breaking current | KA | 16, 20, 25, 31.5, 40, 50 | ||
| Rated short-circuit making current (peak value) | KA | 40, 50, 63, 80, 100, 25 | ||
| Rated insulation level | 1min power frequency withstand voltage | Phase-to-phase & Phase-to-ground | KV | 25, 30, 42 |
| Rated insulation level | 1min power frequency withstand voltage | Isolating break | KV | 27, 34, 48 |
| Rated insulation level | Lightning impulse withstand voltage(peak) | Phase-to-phase & Phase-to-ground | KV | 40, 60, 75 |
| Rated insulation level | Lightning impulse withstand voltage(peak) | Isolating break | KV | 46, 70, 85 |
| Protection level | Enclosure: IP4X, Compartment room (door open): IP2X |
Model Designation
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