STB Series Wall Bushing
STB Series Specifications and Performance
Performance
Rated highest voltage: 40.5 - 252kV
Rated current: 100~3150A
Rated frequency: 50Hz-60Hz
Operational Conditions
Environmental temparature: -50C [-58F]/ +45C [113F]
Altitude: <1000m above sea level (when higher than 1000m, specific design available. Please contact us)
Creepage distances: in the range 25 to 31 mm/kV
Dimensions
The following dimensions represent typical STB Wall Bushings. However, we custom design Current Transformers for most voltages or operating conditions met in T&D grids around the world.
Please contact us for specific designs.
Model
Reference |
Rated
Voltage
(kV) |
Rated
Current
(A) |
Dimensions (mm) |
Creepage
Distance
(mm) |
Weight
(kg/lbs) |
L |
L1 |
L2 |
L3 |
L4 |
| STB 40.5/630 |
40.5 |
630 |
1570 |
350 |
350 |
350 |
755 |
1015 |
30/66 |
| STB 40.5/3150 |
40.5 |
3150 |
1680 |
350 |
350 |
350 |
840 |
1015 |
65/143 |
| STB 72.5/630 |
72.5 |
630 |
2630 |
630 |
800 |
630 |
1315 |
1925 |
60/132 |
| STB 72.5/1600 |
72.5 |
1600 |
3270 |
630 |
800 |
960 |
1635 |
3200 |
75/165 |
| STB 126/630 |
126 |
630 |
3270 |
960 |
900 |
960 |
1635 |
3200 |
70/154 |
| STB 126/2000 |
126 |
2000~2500 |
3410 |
960 |
900 |
960 |
1680 |
3200 |
120/265 |
| STB 245/630 |
245 |
630 |
5500 |
1750 |
1500 |
1750 |
2750 |
6300 |
300/661 |
| STB 245/2000 |
245 |
2000~2500 |
5600 |
1750 |
1500 |
1750 |
2800 |
6300 |
350/772 |
More Information
To view our technical papers click here
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