Conditions of use and environment
1. Cooling conditions: natural air cooling
2. Use environment:
Outdoor ambient temperature is not higher than 40℃, not lower than
-45℃, altitude not exceeding 1000m, monthly average temperature not
exceeding 30℃, annual average temperature
Does not exceed 20°C. At 25°C, the relative humidity of the air
does not exceed 95%, and the monthly average does not exceed 90%.
The horizontal acceleration is not more than 0.3g, and the vertical
acceleration is not more than 0.15g.
The installation environment should be free of obvious pollution,
explosive, corrosive gas and dust, and the installation site should
be free of severe vibration and impact. It is required to be
installed on a cement platform or other flat and solid platform.
Note: If other technical regulations are exceeded, the user shall
negotiate with the company.
Attributes
Product name: American box-type substation / box-type substation
Color: support customization
Applicable places: urban power grid transformation, residential
quarters, high-rise buildings, industrial parks, factories,
temporary construction electricity, airports, oil fields, docks,
highways and other outdoor places.
Place of production: Chengdu
Brand Name: Baikong Electric
Overview
The substation adopts the S11 series oil-immersed transformer with
chip oil tank, no oil pillow, fully enclosed, high and low voltage
bushing, tap switch, oil level indicator, pressure relief valve,
oil drain valve, etc. They are all installed on the end plate of
the main body in the hyperbaric chamber, and the position is
reasonable, which is convenient for observation and operation.
The high-voltage cabin and the low-voltage cabin are separated by
steel plates. The high-voltage cabin, the low-voltage cabin, and
the transformer are relatively independent, while maintaining a
complete box-transformation unit, with compact structure, small
size and light weight. Install power distribution switchgear on the
high and low voltage side.
Advantages of American box change
Advantages: small size, small area, easy to place, easy to
camouflage, easy to coordinate with the environment of the
community. The length of low-voltage cables can be shortened, the
line loss can be reduced, and the cost of power supply matching can
be reduced.
The main technical parameters
| Serial number | name | unit | technical parameter |
| 1 | Rated voltage | kV | 10／0.4 (high pressure/low pressure) |
| 2 | Maximum working voltage | kV | 12 (High pressure side) |
| 3 | Rated frequency | Hz | 50 |
| 4 | Rated Capacity | KVA | 50-1600 |
| 5 | 1 minute power frequency withstand voltage | kV | 35 |
| 6 | Lightning impulse voltage | kV | 75 |
| 7 | cooling method | | Oil-immersed natural cooling |
| 8 | High-voltage backup fuse breaking current | kA | 50 |
| 9 | Plug-in fuse breaking current | kA | 2.5 |
| 10 | Ambient temperature | ℃ | -35~40 |
| 11 | Allowable temperature rise of coil | K | 65 |
| 12 | No-load voltage regulation | | ±5％or±2x2.5％ |
| 13 | Noise level | dB | 50 |
| 14 | Protection level | | IP44 |
