KYN28 High voltage switchgear
Contact:
The main function of switch cabinet is to open and close, control and protect electrical equipment in the process of power generation, transmission, distribution and electric energy conversion. The components in the switch cabinet mainly include circuit breaker, disconnecting switch, load switch, operating mechanism, mutual inductor and various protective devices. There are many classification methods of switchgear, such as the circuit breaker installation can be divided into moving switchgear and fixed switchgear; Or according to the different structure of the cabinet, it can be divided into open switch cabinet, metal closed switch cabinet, and metal closed armored switch cabinet; According to the different voltage levels can be divided into high voltage switchgear, medium voltage switchgear and low voltage switchgear. Mainly applicable to power plants, substations, petrochemical, metallurgical steel rolling, light industry textile, factories and mining enterprises and residential areas, high-rise buildings and other different occasions.
General
1. Ratings: system voltage 3.6kV, 7.2KV, 12KV, rated current up to 4000A, AC three phase 50/60HZ.
2. Application: mainly applicable in the power plant, substation, mineral enterprise to receive and distribute power with the functions of controlling, protecting and monitoring. It also can be used in places where the frequently operations are inneed.
3. Standard: IEC62271-200
Working Conditions
1. Ambient air temperature: -15℃~+40℃.
2. Altitude: ≤1000m.
3. Relative humidity : Daily average≤95%, daily averange of vapour pressure≤2.2kpa.
4. Earthquake intensity: ≤magnitude 8.
5. Applicable in the places without corrosive and flammable gas and water vapor.
6. Used in place without frequently intense vibrant.
Note: Customized products are available
Main technical parameter
| No. | Item | Unit |
Data |
|
|
1 |
Rated voltage |
kV |
12 |
|
|
2 |
Rated current | Load break switchgear |
A |
630 |
| Combined switchgear |
A |
125 |
||
|
3 |
Rated short-circuit breaking current |
kA |
31.5 |
|
|
4 |
Rated active on-load breaking current |
A |
630 |
|
|
5 |
Rated short-time withstands current |
kA |
20 |
|
|
6 |
Rated withstands current(Peak) |
kA |
50 |
|
|
7 |
Rated power frequency voltage withstands inter-phase, to earth and to the open contact |
kV |
42/48 |
|
|
8 |
Thundering withstands voltage inter-phase, to earth and to the open contact |
kV |
75/85 |
|
|
9 |
Mechanical life |
times |
10000 |
|
|
10 |
Rated take-over current |
A |
3150 |
|
|
11 |
Operating mode |
Manual or automatic |
||
|
12 |
Protection level |
Ip2X |
||
Outline size
|
Height(B) |
2300(2200) |
|
|
Width(A) |
Rated current of branch bus≤1250A, heat stable current≤40KA |
800(650) |
|
Rated current of branch bus≥1600A |
1000 |
|
|
Depth(C) |
Cable Incoming and outgoing feeder |
1500 |
|
Overheaded incoming and outgoing feeder |
1660 |
|
Height(B) |
Width(A0 |
L1 |
L2 |
L3 |
L4 |
|
800 |
1500 cable |
530 |
630 |
150 |
490 |
|
800 |
1660 aerial |
530 |
630 |
310 |
650 |
|
1000 |
1500 cable |
730 |
830 |
150 |
490 |
|
1000 |
1660 aerial |
730 |
830 |
310 |
650 |
