Indoor High Voltage VCB

Indoor high voltage vcb is an indoor switchgear with three-phase AC 50Hz rated voltage of 12kV and 24kV power system. It is used as a protection and control unit for power grid equipment and power equipment in industrial and mining enterprises. It is suitable for places requiring frequent...

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Description

Use environmental conditions

1. Ambient air temperature: upper limit +40 degrees, lower limit -40 degrees;

2. Altitude: ≤2000m (if the altitude increases, the rated insulation level will increase accordingly);

3. Wind pressure: no more than 700Pa (equivalent to wind speed of 34m/s);

4. Earthquake intensity: no more than 8 degrees;

5. Contamination level: Ⅳ level;

6. Maximum daily temperature difference: no more than 25 degrees;

7. Relative humidity: the daily average is not more than 95%, the monthly average is not more than 90%;

8. Places without inflammability, explosion hazard, chemical corrosion and severe vibration.

Data sheet of indoor high voltage VCB

No.	Item	Unit	Data
1	Rated voltage	KV	12kV	24kV
2	1min. Power frequency withstand voltage	KV	42	50
3	Lightning impulse withstand voltage(peak)	KV	75	125
4	Rated current	A	630A~4000A	630~4000A
5	Rated short-circuit breaking current	KA	20,25,31.5,40,50	20, 25, 31.5
6	Rated short-circuit making current(peak)	KA	50,63,80,100,125	50, 63, 80
7	4s rated short-time withstand current	KA	20,25,31.5,40,50	20, 25, 31.5
8	Rated peak withstand current	KA	50,63,80,100,125	50.63.80
9	Protection degree		Enclosure IP4X, VCB door opened IP2X
10	Panel width	mm	500/550/650/800/1000	800/1000
11	Weight	KG	400~1000	500~1200
12	Rated frequency	Hz	50Hz, or 60Hz