Buried transformer
Buried transformer is a new generation of distribution transformer developed to meet the needs of urban construction. It is suitable for installation in streets, squares, highways, tunnels, airports, parking lots, tourist attractions and other ground, lawn, flower beds under the basement or cellar. The appearance and function of the buried transformer is similar to that of the column transformer or the base transformer (combined transformer), but it has a higher technical level and more reliable operation. Its performance conforms to JB/T10544-2006 "Underground Transformer"
Safe and reliable
Well-made
After-sales worry-free
Quality Assurance
Classification:
Special Transformer
Telephone:86-371-63719330
Product Introduction
Buried transformer is a new generation of distribution transformer developed to meet the needs of urban construction. It is suitable for installation in streets, squares, highways, tunnels, airports, parking lots, tourist attractions and other ground, lawn, flower beds under the basement or cellar. The appearance and function of the buried transformer is similar to that of the column transformer or the base transformer (combined transformer), but it has a higher technical level and more reliable operation. Its performance conforms to JB/T10544-2006 "Underground Transformer"
Executive standard
GB1094.1.2-1996 Power Transformers
GB1094.3.5-2003 Power Transformers
451-1999 Technical parameters and requirements of three-phase oil-immersed transformer GB/T6451-1999
GB/T15164-1994-Guide for loading of oil-immersed power transformers
JB/T10544-2006 Underground Transformer
GB/T15164-1994-Guide for loading of oil-immersed power transformers
JB/T10544-2006 Underground Transformer
The absolute green level: L175AC35/AC5
Protection class: IP68
Main technical innovation points
1. Can be directly immersed in water or buried in the underground tunnel, protection grade IP68
2. High-quality corrosion-resistant stainless steel box, safe and reliable, maintenance-free design
3. All components are installed on the box shell to facilitate inspection and maintenance.
4 High permeability silicon steel sheet or amorphous alloy core, ultra-low no-load loss
5. Special high and low voltage bushings and detachable cable terminal joints
6. High voltage side with fuse protection, optional load switch and other components
7. With non-occupied table space, can ensure the perfect unity of power supply facilities and the surrounding environment
Structural features
1. The shell of the transformer is made of 5mm steel plate seamless welding, which can run for a long time in the underground wet environment
2. The design fully takes into account the characteristics of poor underground ventilation and poor heat dissipation, and the loss and temperature rise of the transformer are relatively low;
3. The transformer body adopts a fully sealed waterproof structure, and the factory test adds a water immersion test item, so the transformer can be immersed in water or silt for a certain period of time to operate safely;
4. The high and low voltage outgoing lines of the transformer adopt a fully insulated and shielded waterproof structure, with no exposed live parts, and no fences and restricted areas during installation.
Technical parameters of S11 buried transformer
|
Model |
Voltage combination and tap range Voltage combination |
Bonding Group Label |
No-load loss |
Load loss (75°)kW |
No-load current |
short circuit impedance |
||
|
High pressure |
High voltage tap H-V |
Low pressure |
||||||
|
S11-M.D-30/10 |
6 |
2 x 2.5 |
0.4 |
Dyn11 |
0.10 |
0.63/0.6 |
2.0 |
4.0 |
|
S11-M.D-50/10 |
0.13 |
0.91/0.87 |
1.8 |
|||||
|
S11-M.D-63/10 |
0.15 |
1.09/1.04 |
1.7 |
|||||
|
S11-M.D-80/10 |
0.18 |
1.31/1.25 |
1.7 |
|||||
|
S11-M.D-100/10 |
0.20 |
1.58/1.50 |
1.6 |
|||||
|
S11-M.D-125/10 |
0.24 |
1.89/1.80 |
1.5 |
|||||
|
S11-M.D-160/10 |
0.28 |
2.31/2.20 |
1.4 |
|||||
|
S11-M.D-200/10 |
0.34 |
2.73/2.60 |
1.3 |
|||||
|
S11-M.D-250/10 |
0.40 |
3.20/3.05 |
1.2 |
|||||
|
S11-M.D-315/10 |
0.48 |
3.83/3.65 |
1.1 |
|||||
|
S11-M.D-400/10 |
0.57 |
4.52/4.30 |
1.0 |
|||||
|
S11-M.D-500/10 |
0.68 |
5.14/5.15 |
1.0 |
|||||
|
311-m.d-630/1 ( |
0.81 |
6.20 |
0.9 |
4.5 |
||||
|
S11-M.D-800/10 |
0.98 |
7.50 |
0.8 |
|||||
Technical parameters of S13 buried transformer
|
Model |
High pressure H-V kV |
Voltage combination and tap range |
|
Bonding Group Label |
No-load loss |
Load loss Load loss (75°)kW |
No-load current No-load current |
short circuit impedance |
|
S13-M.D-30/10 |
6 10.5 |
± 2 × 2.5 |
0.4 |
Dyn11 |
0.08 |
0.63/0.60 |
1.6 |
4.0 |
|
S13-M.D-50/10 |
0.10 |
0.91/0.87 |
1.6 |
|||||
|
S13-M.D-63/10 |
0.11 |
1.09/1.04 |
1.5 |
|||||
|
S13-M.D-80/10 |
0.13 |
1.31/1.25 |
1.5 |
|||||
|
S13-M.D-100/10 |
0.15 |
1.58/1.50 |
1.4 |
|||||
|
S13-M.D-125/10 |
0.17 |
1.89/1.80 |
1.3 |
|||||
|
S13-M.D-160/10 |
0.20 |
2.31/2.20 |
1.3 |
|||||
|
S13-M.D-200/10 |
0.24 |
2.73/2.60 |
1.2 |
|||||
|
S13-M.D-250/10 |
0.29 |
3.20/3.05 |
1.1 |
|||||
|
S13-M.D-315/10 |
0.34 |
3.83/3.65 |
1.1 |
|||||
|
S13-M.D-400/10 |
0.41 |
4.52/4.30 |
1.0 |
|||||
|
S13-M.D-500/10 |
0.48 |
5.41/5.15 |
0.9 |
|||||
|
S13-M.D-630/10 |
0.57 |
6.20 |
0.8 |
4.5 |
||||
|
S13-M.D-800/10 |
0.70 |
7.50 |
0.8 |
Technical parameters of SH15 amorphous alloy buried transformer
|
Model |
Voltage combination and tap range |
Bonding Group Label |
No-load loss No-Load |
Load loss Load loss (75°)kW |
No-load current No-load current |
short circuit impedance |
||
|
High pressure |
High voltage tap range |
Low pressure |
||||||
|
SH15-M.D-30/10 |
6 10.5 |
± 2 × 2.5 |
0.4 |
Dyn11 |
0.033 |
0.63 |
1.50 |
4 |
|
SH15-M.D-50/10 |
0.043 |
0.91 |
1.20 |
|||||
|
SH15-M.D-63/10 |
0.050 |
1.09 |
1.10 |
|||||
|
SH15-M.D-80/10 |
0.060 |
1.31 |
1.00 |
|||||
|
SH15-M.D-100/10 |
0.075 |
1.58 |
0.90 |
|||||
|
SH15-M.D-125/10 |
0.085 |
1.89 |
0.80 |
|||||
|
SH15-M.D-160/10 |
0.10 |
2.31 |
0.60 |
|||||
|
SH15-M.D-200/10 |
0.12 |
2.73 |
0.60 |
|||||
|
SH15-M.D-250/10 |
0.14 |
3.20 |
0.60 |
|||||
|
SH15-M.D-315/10 |
0.17 |
3.83 |
0.50 |
|||||
|
SH15-M D-400/10 |
0.20 |
4.52 |
0.50 |
|||||
|
SH15-M.D-500/10 |
0.24 |
5.41 |
0.50 |
|||||
|
SH15-M.D-630/10 |
0.32 |
6.20 |
0.30 |
4.5 |
||||
|
SH15-M.D-800/10 |
0.38 |
7.50 |
0.30 |
|||||
Key words:
Buried transformer
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