Product Description
- KYN28-12 medium voltage switchgear is suitable for 3.6/7.2/12kV three-phase AC 50/60Hz power grid, used for receiving and distributing electric energy, and controlling, monitoring and protecting circuits
- Rated AC frequency 50Hz/60HZ, maximum working voltage up to 12KV, maximum working current up to 4000A
- High reliability verified by operation in more than 50 countries and regions around the world
- Mainly used in power receiving and distribution of substations, power plants, power systems and industrial and mining enterprises, and can also be used for frequent starting of high-voltage motors, etc.
- Meets many international standards: IEC60298, IEC6094, GB3906, DL404, DIN.VDE670, etc.
Product Parameters
| Number | Project name | Unit | Parameter Value | |
|
1 |
Rated voltage |
KV |
12 |
|
|
2 |
Rated frequency |
HZ |
50 |
|
|
3 |
Rated insulation level | Lightning impulse withstand voltage |
KV |
42 |
| 1min power frequency withstand voltage |
KV |
75 |
||
|
4 |
Main busbar rated current |
A |
630,1250,1600,2000,2500,3150,4000** 4000﹡﹡ |
|
|
5 |
Divided busbar rated current |
A |
630,1250,1600,2000,2500, 3150.4000.** |
|
|
6 |
4S thermal stability current (effective value) |
KA |
20,25,31.5,40 |
|
|
7 |
Rated dynamic stability current (peak value) |
KA |
50,63,80,100 |
|
|
8 |
Protection level | The housing is IP4X, and the isolation room and circuit breaker room doors are IP2X when opened. | ||
Note: The short-circuit capacity of the current transformer should be considered separately; when forced air cooling is used, the rated current can reach 4000A.
Conditions of Use
- Altitude shall not exceed 1000m
- Ambient air temperature shall not be higher than +40 degrees and not lower than -10 degrees
- Relative humidity: daily average value shall not exceed 95%, monthly average value shall not exceed 90%;
- Saturated vapor pressure: daily average value shall not exceed 2.2KPa, monthly average value shall not exceed 1.8KPa
- The inclination with the vertical plane shall not exceed 5°, and the whole set of cabinets shall be relatively flat and meet the (GBJ232-2) standard
- Required to be in a place without severe vibration and impact, where electrical components will not be corroded and there is no conductive dust
Ordering Instructions
Customers are required to provide the following information:
- Main circuit diagram, primary circuit system diagram and auxiliary circuit control method
- Equipment layout diagram, distribution room layout diagram
- Brand and model of main electrical components of equipment
- Inlet and outlet method. When busbar bridge connection is required between equipment, data such as bus spacing and height from the ground should be provided.
- Other special requirements can be negotiated with our company
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