Armoured High Voltage Switch Cabinet
KYN28A-12armoured high voltage switch cabinet is suitable for three-phase AC 50Hz power system, used to receive and distribute electric energy and participate in circuit control, protection and monitoring. Use environmental conditions 1. Ambient temperature: highest temperature +40℃, lowest...
Description
KYN28A-12armoured high voltage switch cabinet is suitable for three-phase AC 50Hz power system, used to receive and distribute electric energy and participate in circuit control, protection and monitoring.
Use environmental conditions
1. Ambient temperature: highest temperature +40℃, lowest temperature -10℃.
2. Environmental humidity: daily average relative humidity ≤95%, monthly average relative humidity ≤90%
3. Altitude: Below 1000m
4. Earthquake resistance: earthquake intensity does not exceed 8 degrees
5. The surrounding air should not be significantly polluted by corrosive combustible gas, water vapor, etc.
6. There is no frequent severe vibration place. The harshness design meets Class I requirements under severe conditions.
7. When used under normal environmental conditions exceeding GB3906, the user shall negotiate with our company.
| Main technical parameters | |||
| Rated voltage | ..................................... | kV | 3.6,7.2,12 |
| Rated frequency | ..................................... | Hz | 50 |
| Rated current of circuit breaker | ..................................... | A | 630/4000 |
| Rated current of switchgear | ..................................... | A | 630/4000 |
| Rated short-time withstand current (4S) | ..................................... | kA | 20,25,31.5,40 |
| Rated peak withstand current (peak) | ..................................... | kA | 50,63,80,100 |
| Rated short-circuit breaking current | ..................................... | kA | 20,25,31.5,40 |
| Rated insulation level 1min power frequency withstand voltage | Pole-to-pole, pole-to- ground | kV | 24,32,42 |
| Between open contacts | kV | 24,32,48 | |
| Lightning impulse withstand voltage (peak) | Pole-to-pole, pole-to- ground | kV | 40,60,75 |
| Between open contacts | kV | 46,70,85 | |
| The shell is IP4X, and it is IP2X when the compartment door and circuit breaker chamber door are opened | |||
Installation of switchgear
1. According to the needs of the project and the drawings, transport the switchgear to their specific location. If a long row of switchgear is arranged (more than 10), the assembly work should start from the middle part.
2. Use specific transportation tools such as cranes or forklifts, and it is strictly forbidden to use roller crowbars.
3. Pull out the circuit breaker trolley from the switch cabinet and put it in another place for safekeeping.
4. Install the switchgear one by one on the basis, including both horizontal and vertical aspects. The unevenness of the switchgear installation shall not exceed 2mm.
5. When the switchgear is completely assembled (spliced), it can be connected to the foundation channel steel with anchor bolts or welded to the foundation channel steel by electric welding.
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