Product Overview
YBM -12/0.4 prefabricated substation is an outdoor independent complete set of power distribution equipment composed of standardized high-voltage switch complete set equipment, distribution transformer and standardized low-voltage switch complete set equipment, electric energy metering and low-voltage reactive automatic compensation device.
This product is widely used in AC three-phase 50Hz, voltage 6-10kV radiation and ring network power supply power system for receiving and distributing electric energy. It is used in high-rise buildings, underground facilities, industrial and mining enterprises, airports, stations, docks, ports and concentrated residential areas, etc., and can replace traditional indoor and outdoor substations (stations).
Implementation standards: IEC60067 GB 17467-2010, etc.
Product Parameters
| Number | Name | Unit | Technical Parameters | Remarks | |
|
1 |
Rated frequency |
Hz |
50 |
||
|
2 |
Rated capacity |
kVA |
50-2500 |
Dry type, oil-immersed type, user-selectable | |
|
3 |
Rated voltage |
kV |
12/0.4 |
||
|
4 |
Rated current on high voltage side |
A |
400,630,1250 |
||
|
5 |
Rated voltage of lightning arrester |
kV |
7.6,12.7 |
||
|
6 |
Maximum breaking current (high voltage switch) |
kA |
25,40,50,63 |
Peak value | |
|
7 |
Maximum closing current (high voltage switch) |
kA |
25,40,50,63 |
Peak value | |
|
8 |
Fuse breaking capacity |
MVA |
200-500 |
Optional | |
|
9 |
Rated breaking capacity of switch |
MVA |
300-500 |
||
|
10 |
Dynamic stability current |
kA |
25,40,50,63 |
Peak value | |
|
11 |
Thermal stability current |
kA |
10,16,20,25 |
R.M.V. | |
|
12 |
Power frequency withstand voltage |
kV |
42 |
1min |
|
|
13 |
Impact withstand voltage |
kV |
75 |
||
|
14 |
Low voltage unit | Rated voltage |
kV |
0.4 |
|
|
15 |
Main circuit rated current |
A |
100-5000 |
Selected by transformer capacity | |
|
16 |
Main circuit dynamic stability current |
kA |
63 |
||
|
17 |
Branch circuit rated current |
A |
16-63 |
Selected by transformer capacity | |
|
18 |
Number of branch circuits | Road |
3-8 |
Selected by transformer capacity | |
|
19 |
Box | Dimensions selected according to drawings provided by the user | |||
Usage Environment
- Ambient air temperature is no more than 45℃ at the highest and -45℃ at the lowest
- Altitude is no more than 1000m above sea level. If special customized transformers and low-voltage components are used, the altitude can reach 4000m above sea level
- Vertical inclination is no more than 5°, and there is no severe vibration and impact
- Air humidity is no more than 90% (+25℃)
- No conductive dust, no explosion hazard, no gas that corrodes metal and electrical components
- Outdoor wind speed is no more than 35m/s
- Beyond the above normal use environment conditions, customers can customize solutions with our company.
Ordering Instructions
Customers are required to provide the following information:
- Main circuit scheme diagram and secondary circuit system diagram
- Auxiliary circuit electrical schematic diagram and terminal layout diagram
- Equipment layout diagram, combination diagram, plan layout diagram
- Model, specification, quantity of main electrical components of equipment
- Inlet and outlet wiring methods and cable specifications
- Equipment housing material and color
- Other special requirements can be negotiated with the manufacturer
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