Product: YB□-12/0.4-1250
Compact Substation / Prefabricated Substation
| Applicable standard | GB17467-2010 |
| Rated operational voltage (Ue) | 12kV/0.4kV |
| Rated current (In) | 72.2A(MV side) 1804.2A(LV side) |
| Short-circuit withstand | Icw: 20kA/1s(MV side); 25kA/1s(LV side) Ipk: 50kA,duration ≥ 0.3 s(MV side); 52.5kA(LV side) |
| Degree of protection | IP33 |
More specification…
| Rated frequency | 50/60 Hz |
| Rated insulation voltage (Ui) | LV side: 660 V |
| Rated impulse withstand voltage (Uimp) | MV side: 75 kV LV side: 6 kV |
| Compartmentalization | (MV/TR/LV): Separate compartments |
| Protection against electric shock | Class I |
| Pollution degree | Pollution Degree 3 |
| Material group | IIIa |
| Minimum electrical clearance | LV: ≥10.0mm |
| Minimum creepage distance | MV: ≥160mm LV: ≥12.5mm |
Product Overview: YB□-12/0.4-1250 prefabricated substation is a compact outdoor power distribution solution that integrates medium voltage switchgear, transformer, and low voltage distribution equipment into one enclosure. This prefabricated electrical substation is suitable for industrial plants, commercial buildings, infrastructure projects, and utility distribution applications that require reliable, space-saving power transformation and distribution.
Product features:：
- The independent compartment layout of the medium-voltage room, transformer room and low-voltage room has a compact structure, small footprint and convenient installation.
- The enclosure has a protection level of IP33D, which has good dustproof, waterproof, and anti-corrosion performance, and is suitable for harsh outdoor environments.
- The medium-voltage side is rated to withstand 20kA/1s for a short period of time, and the low-voltage side is 25kA/1s, which has good dynamic and thermal stability.
- It supports the configuration of intelligent monitoring units to realize telemetry, remote control, communication and other functions to meet the needs of intelligent distribution network management.
- SCB11 low-loss dry-type transformer is selected, which has low no-load loss and high operating efficiency, which meets the requirements of energy conservation and environmental protection.
- It has an internal arc protection level (IAC-B), is equipped with fuse protection on the medium voltage side and a frame circuit breaker on the low voltage side, and has high system safety.
