Three Phase Oil Immersed Distribution Transformer
A transformer is a static device, which does not perform any mechanical work. But the primary functions are stepping down and stepping up of voltage ratings. Invariably, while stepping up/down the voltage, it also steps down/up the current inversely.
Description
Baoding Sihedan Electric Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of three phase oil immersed distribution transformer in China. With abundant experience, we warmly welcome you to buy cheap three phase oil immersed distribution transformer from our factory. Quality products and low price are available.
Products Description
Three Phase Oil Immersed Distribution Transformer Introduction
Three-phase oil-immersed distribution transformers are engineered as robust power conversion hardware for electricity distribution networks, primarily specified by an advanced new type insulation structure that significantly improves short-circuit resistance and dielectric reliability. Designed to optimize voltage stepping and grid efficiency, these oil-immersed transformers feature enhanced thermal dissipation housing and reinforced winding arrangements to ensure dependable performance under severe electrical stresses.
Featuring exceptional mechanical and electrical strength, the new type insulation architecture protects core components against transient surge currents and electrodynamic forces during fault conditions. Built for continuous outdoor operation and power distribution applications, the transformer design delivers high operational stability, optimized dielectric endurance, and long service life without requiring post-site modifications.
FEATURES
■Advanced new type insulation structure engineered to improve short-circuit resistance
■Heavy-duty three-phase oil-immersed architecture optimizing power distribution efficiency
■Enhanced mechanical winding strength protecting against severe electrodynamic forces
■Reliable outdoor transformer housing built for continuous high-load network operations
Parameters
6~12kV
|
Rate capacity |
Voltage ratio |
HV tapping range |
Load loss(w) |
No load loss(w) |
No load current(%) |
Short circuit impedance |
|
|
HV(kV) |
LV(kV) |
||||||
|
25 |
6 6.3 10 11 |
0.4 0.415 0.433 |
5%,0 2x2.5%,0 |
115 |
550 |
2.3 |
3.5~4.5 |
|
50 |
170 |
910 |
2.0 |
||||
|
100 |
290 |
1580 |
1.8 |
||||
|
125 |
340 |
1890 |
1.7 |
||||
|
160 |
400 |
2310 |
1.6 |
||||
|
200 |
480 |
2730 |
1.5 |
||||
|
250 |
560 |
3200 |
1.4 |
||||
|
315 |
670 |
3830 |
1.4 |
||||
|
400 |
800 |
4520 |
1.3 |
||||
|
500 |
960 |
5410 |
1.2 |
||||
|
630 |
1200 |
6200 |
1.1 |
||||
|
800 |
1400 |
7500 |
1.0 |
||||
|
1000 |
1700 |
10300 |
1.0 |
||||
|
1250 |
1950 |
12000 |
0.9 |
||||
|
1600 |
2400 |
14500 |
0.8 |
||||
|
2000 |
2840 |
17200 |
0.5 |
||||
|
2500 |
3350 |
20300 |
0.4 |
||||
20~25kV
|
Rate capacity |
Voltage ratio |
HV tapping range |
Load loss(w) |
No load loss(w) |
No load current(%) |
Short circuit impedance |
|
|
HV(kV) |
LV(kV) |
||||||
|
25 |
20 22 24 25 |
0.4 0.415 0.433 |
5%,0 2x2.5%,0 |
80 |
600 |
2.3 |
4.5~6.0 |
|
50 |
130 |
1010 |
2.0 |
||||
|
100 |
200 |
1730 |
1.6 |
||||
|
125 |
240 |
2080 |
1.5 |
||||
|
160 |
290 |
2540 |
1.4 |
||||
|
200 |
340 |
3000 |
1.3 |
||||
|
250 |
400 |
3520 |
1.2 |
||||
|
315 |
480 |
4210 |
1.1 |
||||
|
400 |
570 |
4970 |
1.0 |
||||
|
500 |
680 |
5940 |
1.0 |
||||
|
630 |
810 |
6820 |
0.9 |
||||
|
800 |
980 |
8250 |
0.8 |
||||
|
1000 |
1150 |
11330 |
0.7 |
||||
|
1250 |
1380 |
13200 |
0.7 |
||||
|
1600 |
1160 |
15950 |
0.6 |
||||
|
2000 |
1850 |
19140 |
0.6 |
||||
|
2500 |
2320 |
22220 |
0.5 |
||||
30~36kV
|
Rate capacity |
Voltage ratio |
HV tapping range |
Load loss(w) |
No load loss(w) |
No load current(%) |
Short circuit impedance |
|
|
HV(kV) |
LV(kV) |
||||||
|
25 |
30 33 35 36 |
0.4 0.415 0.433 |
5%,0 2x2.5%,0 |
125 |
755 |
2.3 |
4.5~6.5 |
|
50 |
210 |
1270 |
2.0 |
||||
|
100 |
290 |
2120 |
1.8 |
||||
|
125 |
340 |
2500 |
1.7 |
||||
|
160 |
360 |
2970 |
1.6 |
||||
|
200 |
430 |
3500 |
1.5 |
||||
|
250 |
510 |
4160 |
1.4 |
||||
|
315 |
610 |
5010 |
1.4 |
||||
|
400 |
730 |
6050 |
1.3 |
||||
|
500 |
860 |
7280 |
1.2 |
||||
|
630 |
1040 |
8280 |
1.1 |
||||
|
800 |
1230 |
9900 |
1.0 |
||||
|
1000 |
1440 |
12150 |
1.0 |
||||
|
1250 |
1760 |
14670 |
0.9 |
||||
|
1600 |
2120 |
17550 |
0.8 |
||||
|
2500 |
3150 |
23000 |
0.8 |
||||
Products Overview
Characteristics
Featuring a high-performance oil-immersed tank structure, these Three Phase Oil Immersed Distribution Transformers boast a specialized power distribution design, where a new type insulation structure is engineered to directly improve short-circuit resistance capacity. Constructed for medium-voltage grid step-down setups, the transformers combine insulating oil heat dissipation with reinforced internal windings-ensuring precise physical insulation stability, high dielectric endurance, and robust electrodynamic withstand across varied power line operations.
This product is highly suitable for outdoor power distribution networks, industrial substations, and utility grid applications requiring enhanced short-circuit protection, high dielectric insulation, and long-term operating durability. Where heavy fault currents, dynamic load fluctuations, and severe outdoor environment conditions are encountered on site, its new type insulation engineering provides a far more efficient solution than conventional unreinforced transformers-delivering dependable grid protection, optimized thermal performance, and continuous power delivery without requiring post-site modifications.
About Us
Baoding Sihedan Electric Technology Co., Ltd.
Founded by two industry experts with over 20 years of experience, Sihedan Electric Technology Co., Ltd. was established to advance power system development and transmission & distribution line solutions. Soon after, we launched our comprehensive portfolio-spanning high-voltage switchgear, advanced insulation systems, line fittings, and grid protection-establishing a recognized benchmark for reliability across the global energy sector. Having executed projects in over 50 countries, we have built strong, stable partnerships with clients around the globe, including in Kenya, Morocco, Egypt, and beyond.
Frequently Asked Questions
Q: What is the MOQ?
A: There are no MOQ limit in first order, and 100pcs in further.
Q: Samples providing?
A: We are providing the samples by free, but need pay for the freight charge.
Q: EPC material design and provide in lot?
A: Yes, we are supplying for LV and MV EPC material in lot many years.and have strong design team.
Q: Complete documents for tender?
A: Yes, whole set documents ready for submit.
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