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 features of American box change:
Strong overload capacity, allowing overload 2 times 2 hours, overload 1.6 times 7 hours without affecting the life of the box change.
The elbow plug connector is very convenient for the connection of high-voltage incoming cables, and can be used as a load switch in emergency situations, which can be plugged and unplugged under power.
Double fuse protection is adopted, and the plug-in fuse (BAY-o-net) is a dual sensitive fuse (temperature, current) to protect the short-circuit fault occurred on the secondary side of the box transformer. The backup current-limiting protection fuse (ELSP) protects the internal faults of the box transformer and is used to protect the high-voltage side.
Transformers generally use high ignition point oil (FR3).
All components such as fuses for high-voltage load switch protection are placed in the same oil tank as the transformer core and windings.
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 |
Features
1. Small size, compact structure and convenient installation;
2. It can be used in ring networks and terminals to reliably protect personal safety;
3. low damage, low noise, superior performance;
4. The box body adopts anti-theft structure;
5. Low temperature rise and strong overload capacity.
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
