product
YBM series preloaded type transformer substation is a type of power distribution equipment that combines high voltage
electrical equipment, transformer and low voltage electrical equipment into the compact complete set. It is mainly used
in high-rise buildings, city constructions residential areas, high and new technology development zones, medium-sized
factories, mine fields and temporary construction sites, as to accept and distribute power energy.
Working conditions:
1. Altitude: ≤1000m
2. Ambient temperature: -25℃~+40℃, average temperature within 24h≤ +35℃
3. Outdoor wind speed≤35m/s
4. Relative humidity: ≤90%（+25℃）
5. Earthquake horizontal acceleration≤0.4m/S2, vertical acceleration≤0.2m/S2
6. Working in places without danger of fire, exploding, severe shaking , chemistry erosion and serious dirtiness.
7. Note: Customized products are available
Technical parameters:
|
Item |
Unit |
High voltage complements |
Transformer |
Low voltage complements |
|
Rated voltage (Ue) |
KV |
7.2, 12 |
6/0.4, 10/0.4 |
0.4 |
|
Rated capacity (Se) |
KVA |
|
200~1250 |
|
|
50~400 |
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|
Rated current (le) |
A |
200~630 |
|
100~3000 |
|
Rated breaking current |
A |
Load-switch 400~630A |
|
15~63 |
|
KA |
Composite apparatus depends on the fuse |
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|
Rated short-time withstand current |
KA(XS) |
20 x (2) |
200~400KVA |
15 x 1 |
|
12.5 x (4) |
400KVA |
30 x 1 |
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|
Rated peak withstand current |
KA |
31.5, 50 |
200~400KVA |
30 |
|
400KVA |
63 |
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|
Rated short-circuit making current |
KA |
31.5, 50 |
|
|
|
1min power frequency withstand voltage |
KV |
Between poles, pole to earth/between open contacts 32、40 |
Oil immersed type: 35/min5 |
2KV when ≤300V |
|
Isolation open contacts 34、48 |
Dry type: 28/5min |
2.5KV when 300, 600 |
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|
Lightning impulse withstand voltage |
KV |
Between poles, pole to earth/between open contacts 60、75 |
75 |
|
|
Isolation open contacts 75、85 |
75 |
|
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|
Noise level |
dB |
|
Oil immersed type: <55 |
|
|
Dry type: <65 |
|
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Protection class |
|
|
IP23D |
|
|
Outline Dimension |
Please select different outline dimensions according to selected transformer capacity and form. |
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