The KYN28A air insulated metalclad switchgear, which is for distributing and accepting AC electricity (3-12 kV, 50 Hz) distribution system, is fitted with VD4 circuit breaker from ABB or VS1 circuit breaker from domestic company. Besides, it also can control, protect and monitor the circuit.
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Model
Technical Feature
1. The box of the KYN28A air insulated metal clad switchgear is made of aluminum-zinc coated steel sheet, so it is light, strong and beautiful.
2. The electric clearance is larger than 125mm, and the composite insulation electric clearance is larger than 30 mm.
3. Central-positioned circuit breaker.
4. Perfect integrated interlocking mechanism
5. Completed primary systematic diagram, more than 80 main circuit schemes
Lighting impulse withstand voltage
| Rated voltage | 12kV |
| Rated current | 630～4000A |
| Rated short time withstand current | 20～40kA，4S |
| Rated peak withstand current | 50～100kA |
| Power frequency withstand voltage (1 min) | 42kV |
| Lighting impulse withstand voltage | 75kV |
| Rated short circuit current breaking times | 50 |
| Mechanical endurance | 2000 |
| IP rating | IP4X |
