KYN28 Series High-Voltage Switchgear
KYN28 Series High-Voltage Switchgear
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Technical Performance
Technical Specification
• System: Three-phase AC, 50 Hz; rated voltage 3/6/10 kV (commonly 12 kV); rated current ≤ 4000 A; single- or double-busbar configurations, including sectionalized systems.
• Applications: Power plants, substations, industrial and mining enterprises, and high-rise buildings—used for receiving and distributing electrical energy, as well as for control, protection, and monitoring.
• Standards: GB 3906, GB/T 11022, IEC 60298, DL/T 404.
• Altitude: ≤2000 m (derating required at higher altitudes).
• Temperature: -5℃ to +40℃, with a 24-hour average ≤35℃.
• Humidity: ≤50% at 40°C; ≤90% at 20°C (no condensation).
• Environment: No explosive atmospheres, no severe vibrations, no corrosive gases; tilt angle ≤ 5°.
Performance Features
1. Utilizing heat-shrinkable insulating materials and epoxy coating insulation technology, optimizing electrode geometry, and adopting a compact cabinet structure to reduce the footprint;
2. The switchgear cabinet body is fabricated from high-quality cold-rolled steel through CNC sheet-metal forming and assembled using high-strength bolts, nuts, and rivet nuts; the component surfaces are finished with powder coating or galvanizing.
3. It can be equipped with domestically produced ZN85-40.5 vacuum circuit breakers, as well as SF1, SF2, and FP‑type sulfur hexafluoride circuit breakers from overseas, to meet the diverse needs of different users.
4. Each functional compartment of the switchgear is enclosed by metal panels and equipped with an independent pressure relief vent.
5. Operations such as opening and closing circuit breakers and grounding switches can all be performed with the switchgear cabinet closed, thereby enabling door‑closed operation.
6. The switchgear features a highly adaptable structure, with over 198 possible main wiring configurations to meet the diverse needs of different users.
7. A mechanical interlock is provided among the handcart, circuit breaker, earthing switch, and rear cabinet door, ensuring comprehensive “five‑prevention” functions and reliable safety.
Precautions
Please inquire.
Warranty period
Please inquire.
Details and Specifications
Project Name | Unit | Data | |
Rated voltage | kV | 3.6.7.2, 12, 24 | |
Rated Insulation Level | 1-minute power-frequency withstand voltage | kV | 42 |
Lightning impulse withstand voltage | kV | 75 | |
Rated frequency | Hz | 50 | |
Rated current of the main busbar | A | 630, 1250, 1600, 2000, 2500, 3150, 4000, 5000, 6300 | |
Rated current of the branch busbar | A | 630, 1250, 1600, 2000, 2500, 3150, 4000, 5000, 6300 | |
4S thermal stability current (RMS) | kV | 16, 20, 25, 31, 5, 40, 50 | |
Rated dynamic stability current (peak) | kV | 40, 50, 63, 80, 100, 125 | |
Protection class: The enclosure is rated 1P4X; when the isolator compartment and circuit breaker compartment doors are closed, the rating is IP2X. | |||
Weight | kilogram | 1000 | |
The data in the table are for reference only; the company reserves the right to modify the data and accepts special orders.
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