YBD口-12 Series Prefabricated Buried Compact Substation consists of buried transformer and high and low voltage power distribution unit located on the ground. Its transformer can run safely in water for a period of time, and the power distribution unit is usually decorated with lightbox billboards, which can be perfectly combined with the surrounding environment, especially suitable for both sides of urban roads and inside residential areas. The cost of the equipment can be recovered in a short time due to the profitable lightbox billboards.

Altitude ≤1000m.
Ambient Temperature: -45℃~+40℃. Maximum monthly average temperature: +35℃. Maximum annual average temperature: +25℃.
Requirements for installation environment:

• Suitable for sites without explosive gas, corrosive liquid and gas, dust that can destroy insulation and violent vibration, and it is allowed to be partially or completely submerged in water for a certain period of time.
• Gravitational acceleration caused by earthquake (ag): lower than 3m/S2 in the horizontal direction; lower than 1.5m/S2 in the vertical direction.
• Waveform of power supply voltage: approximate sine wave.
• Symmetry of three-phase power supply: For three-phase underground transformer, the voltage of three-phase power supply should be roughly symmetrical.

Note: The special written instructions are required when ordering beyond the NORMAL OPERATING CONDITIONS.