| Product
brief introduction: |
| YB
series prefabricated substation (also called box-type
substation) |
|
| integrates high voltage
power distribution device, power transformer and low |
| voltage power distribution
device into a whole or several cabinets compactly |
| according to a certain line
scheme. This series product applies to outdoor and |
| indoor installation and is
widely used in industrial and mining enterprises, |
| residence
community, high-rise building, station, wharf, temporary works
area etc... It has the character of small |
| volume, compact
structure, attractive appearance, convenient erection and
repair, short testing cycle for |
| installation,
unmanned duty, high economic efficiency etc... Especially it
works its way in load center which is |
|
significant to increase power supply quality, reduce power loss,
enhance the safety and reliability of power |
|
supply system and the rebuilding of distribution electric
network. |
|
This series product is compliant with the standards of
GB/T17467-1998《High and low voltage prefabricated |
|
substation》, QB/DQ9466-88 《GGD basic testing method》,
DL/T537-93《6～35kV box substation order technical |
|
specifications》, IEC1330 etc.. |
|
Structure features: |
| 1.
Cabinet skeletal structure of this series product adopts channel
steel, structural steel and angles steel, |
| with high
mechanical strength and can be hoisted and transported
integrally. |
| 2.Caigang
composite panel, stainless steel plate, dip aluminum-zinc plate
+ pressure immersion paint wood |
| board or glass
fiber material enclosure can be chosen according to the
customer’s requirement. The product has |
| attractive
appearance and good performance of anti-corrosion, heat
insulation and denoiser. |
|
3.Independent small rooms are formed by separating between the
rooms using partition. Automatic remove |
| condensation
temperature control and ventilation system are equipped in the
transformer room. |
|
4.Transformer room, low voltage room and high voltage room are
equipped with illumination device for |
|
convenient monitoring and maintenance. |
| Technical
parameter: |
| Unit
name |
Item |
Unit |
Parameter |
| High
voltage
unit |
Rated frequency |
HZ |
50 |
| Rated voltage |
kV |
6 |
10 |
35 |
| Max. working voltage |
kV |
6.9 |
11.5 |
40.5 |
| Power
frequency withstand voltage to earth and interphase/
isolation clearance |
kV |
32/36 |
42/48 |
95/118 |
| Thunder
impulse voltage to earth and interphase/ isolation
clearance |
kV |
60/70 |
75/85 |
185/215 |
| Rated current |
A |
400A/600A |
| Rated short time withstand
current |
kA |
12.5(2S) |
16(2S) |
20(2S) |
| Rated peak value withstand
current |
kA |
31.5 |
40 |
50 |
| Low
voltage
unit |
Rated voltage |
V |
380/220 |
| Rated current of major loop |
A |
100～3200 |
| Rated short time withstand
current |
kA |
15 |
30 |
50 |
| Rated peak value withstand
current |
kA |
30 |
63 |
110 |
| Branch current |
A |
10～800 |
| Branch loop number |
Road |
1～12 |
| Compensation capacity |
kVar |
0～360 |
|
Transformer unit |
Rated capacity |
kVA |
50～2500 |
| Impedance voltage |
% |
4 |
4～6 |
| Tapping range |
|
±2×2.5% ±5% |
| Connection type |
|
Yyn0 |
Dyn11 |
|
| Service
condition: |
- Altitude: ≤1000m;
- Ambient temperature:
highest temperature +40℃, lowest temperature -25℃; highest
daily average temperature: +30℃, highest yearly average
temperature: +20℃;
- Outdoor wind speed not
exceeding 35m/s;
- Relative air
temperature not exceeding 90%(+25℃);
- Ground gradient not
exceeding 3%;
- Earthquake horizontal
acceleration not exceeding 0.4m/s;
- Earthquake vertical
acceleration not exceeding 0.2m/s;
- No fire, explosion
danger, chemical corrosion or strenuous vibration on
installation site.
|
| |
