Prefabricated Substation - YB□-12/24KVA/0.4
Product Overview
YBM/YBP series prefabricated substations are compact, complete distribution devices combining high-voltage electrical equipment, transformers, and low-voltage electrical equipment. They are widely used in urban high-rise buildings, urban-rural construction, residential communities, high-tech development zones, small and medium-sized factories, mines, oilfields, and temporary construction sites for receiving and distributing electrical energy in power distribution systems.
Performance Features
- Complete set design, compact structure, reliable operation, convenient maintenance, and mobility.
- The land area of a box-type substation with the same capacity is usually only 1/10 to 1/5 of that of a conventional substation.
- Significantly reduces design and construction workload, lowering construction costs.
- Suitable for ring network distribution systems, dual power supply systems, or radial terminal distribution systems.
- An ideal new-type complete equipment for urban and rural substation construction and renovation.
- Complies with standards such as GB/T17467-1998 and DL/T537-2002.
Technical Parameters
| Parameter |
Unit |
High-Voltage Electrical |
Transformer |
Low-Voltage Electrical |
| Rated Voltage (Ue) |
kV |
12/24 |
10/20/0.4 |
0.4 |
| Rated Capacity (Se) |
kVA |
- |
200-1250 (Oil-immersed) / 50-400 (Dry-type) |
- |
| Rated Current (Ie) |
A |
200-630 |
- |
100-2500 |
| Rated Short-Circuit Breaking Current |
kA |
Depends on fuse (Combined appliance) |
- |
15-50 |
| Rated Short-Time Withstand Current |
kA/s |
20/4 |
200-400kVA: 20/4; <400kVA: - |
15/1 |
| Rated Peak Withstand Current |
kA |
50 |
200-400kVA: 50; <400kVA: - |
30/1, 30 |
| Rated Short-Circuit Making Current |
kA |
50 |
- |
63 |
| Rated Power Frequency Withstand Voltage (1min) |
kV |
Phase-to-ground & inter-phase: 42/50; Isolation contact: 48/65 |
Oil-immersed: 35/5min; Dry-type: 28/5min |
300V: 2kV; 600V: 2.5kV |
| Lightning Impulse Withstand Voltage |
kV |
Phase-to-ground & inter-phase: 75/95; Isolation contact: 85/110 |
75 |
- |
| Noise Level |
dB |
- |
Oil-immersed: 55; Dry-type: 65 |
- |
| Protection Class |
- |
- |
IP23D |
- |
| External Dimensions |
- |
Customizable based on transformer capacity and form |
Dimensions & Installation Data
| Model |
External Dimensions (mm) |
Installation Dimensions (mm) |
Transformer Capacity |
| 103 |
A=2960, A=2001; H=2370, A1=2750; A3=2800, B1=1800 |
A2=2820,B2=1740 |
30-250kVA |
| 103 |
A=3500, A=2300; H=2410, A3=3320; A1=3200, H1=2160; B1=2000 |
A2=3270, B2=1940 |
315-630kVA / 30-250kVA |
| 103 |
A=2960, A=2001; H=2370, A1=2750; A3=2800, B1=1800 |
A2=3570, B2=2340 |
800-1250kVA / 30-250kVA |
Main Circuit Schemes & Layout Diagrams
