11kV Prefabricated Compact Substation
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Henan GNEE Electric Co., Ltd. is one of the most reliable manufacturers and suppliers of 11kv prefabricated compact substation in China. With abundant experience, we warmly welcome you to wholesale high quality 11kv prefabricated compact substation at low price from our factory. Contact us for more cheap products.
11kV prefabricated compact substation designed for outdoor application with the advantages of compact size, flexible combination, reliable technology etc. The input primary voltage grade is 11kV into the incoming high voltage ring main unit, and the function of the compact substation is to transform the 11kV high voltage to be low voltage such as 415V or 380V.
The power capacity for the 11kV compact substations is normally designed below 1000kva, it depends on the capacity of the distribution transformer. The most popular size of the compact substation is 630kva in the market for the design advantages. The main components of the compact substation are high voltage rmu, low voltage rmu, and distribution transformer.
Prefabricated compact substation Specification
|
|
Rated frequency |
Hz |
50 |
|
Rated voltage |
kV |
7.2 12 24 40.5 |
|
|
Rated current of main bus |
A |
630 1250 1600 |
|
|
Rated short-time withstand current / duration |
kA/s |
20/4 25/3 31.5/4 |
|
|
Rated peak withstand current |
kA |
50 63 80 |
|
|
1min power frequency withstand voltage (to-ground/between open contacts) |
kV |
32/36 42/48 65/79 95/115 |
|
|
Lightning impulse withstand voltage (to-ground/between open contacts) |
kV |
60/70 75/85 125/145 185/215 |
|
|
Rated short-circuit breaking current |
kA |
20 25 31.5 |
|
|
Ground loop short-time withstand current / duration |
kA/s |
20/2 20/4 |
|
|
Rated short-circuit making current of main loop |
kA |
50 63 80 |
|
|
Rated active load breaking current |
A |
630 |
|
|
Rated closed loop breaking current |
A |
630 |
|
|
Rated transfer current |
A |
1700 |
|
|
Mechanical life peroid |
times |
3000 5000 10000 |
|
|
|
Rated frequency |
Hz |
50 |
|
Rated voltage |
kV |
0.4/0.23 |
|
|
Rated insulation voltage |
V |
690 |
|
|
Rated current of main loop |
A |
100~3200 |
|
|
Rated short-time withstand current |
kA/s |
30/1 50/1 100/1 |
|
|
Rated peak withstand current |
kA |
63 105 176 |
|
|
5s power frequency withstand voltage |
kV |
2.5 3.75 |
|
|
|
Rated frequency |
Hz |
50 |
|
Rated voltage |
kV |
7.2 12 24 40.5/0.4 |
|
|
Rated capacity |
kVA |
30~1600 |
|
|
1min power frequency withstand voltage |
kV |
25/20 35/28 55/50 85/75 |
|
|
Lightning impulse withstand voltage |
kV |
60 75 125 170 |
|
|
Impedance voltage |
％ |
4~6 |
|
|
Tapping range |
... |
±×2.5％ ±×5％ |
|
|
Connection group |
... |
Y,yn0 D,yn11 |
|
|
Type |
... |
Oil-immersed type, dry type |
|
|
|
IP code of HV and LV chambers |
... |
IP33D |
|
IP code of transformer chamber |
... |
IP23D |
|
|
Sound level (oil-immersed type/dry type) |
dB |
≤50/55 |
prefabricated compact substation features
- 11kV prefabricated compact substation designed for 3 phases AC power distribution system, it is widely used for residential quarters, urban public utilities etc.
- 11kV compact substation designed has the advantages of compact structure, easy installation, simple maintenance, flexible combination, and reliable operation.
- The size of compact substation designed only to be 1/10 of same capacity traditional power substation, this advantage could save designing workload and construction cost.
Packaging&shipping
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