JUCEG, as a professional R&D and manufacturing factory of 35kV Three Phase Oil Immersed Transformer in China, specializes in mass production, strict ISO quality control and OEM/ODM service.By using high-quality materials and advanced design techniques, it achieves miniaturization, with a small size, light weight, and ease of installation and transportation. It adopts new energy-saving technologies, which have more significant energy-saving effects compared to traditional transformers, especially in light load and no-load conditions, still maintaining high energy efficiency. 35kV Three Phase Oil Immersed Transformer has on-load voltage regulation function, which can directly adjust the voltage under load without stopping the machine. It is convenient to operate, economically practical, and has higher efficiency.
It can stably output voltage, effectively reduce voltage fluctuations and noise, and has good insulation performance, which can prevent electrical accidents. The shell and insulation materials have good weather resistance and corrosion resistance, and can adapt to various harsh environmental conditions, ensuring long-term stability.
|
Parameter |
Details/Specifications |
|
Rated Power |
500 kVA ~ 20,000 kVA |
|
Input Voltage |
33 kV / 35 kV |
|
Output Voltage |
0.4 kV / 0.69 kV / 1 kV |
|
Rated Frequency |
50 Hz / 60 Hz |
|
Capacity |
1000 L ~ 12,000 L |
|
Cooling Method |
ONAN (natural oil cooling)/ONAF (oil air cooling) |
|
Impedance Voltage |
4% ~ 6% |
|
Load Loss |
< 2 W / kVA |
|
Short-Circuit Loss |
≤ 2% |
|
Ambient Temperature |
-5 °C~40 °C (High temperature version supports high temperature resistant design) |
|
Weight |
2000 kg ~ 25,000 kg |
|
External Dimensions |
Customized according to power model: 2.0m x 3.5m x 6.0m |
|
Insulation Level |
F-grade (155 °C)/H-grade (180 °C) |
|
Seismic Resistance |
Grade 8 seismic resistance, suitable for complex geological environments |
|
Noise Level |
≤ 65 dB (low-noise design, suitable for urban and industrial areas) |
|
Energy Saving Performance |
Efficient design that meets international energy efficiency standards and reduces energy consumption |
|
Long Term Stability |
High quality components ensure stable operation and low failure rate |
|
Certification Standards |
ISO certification standards |
1. 7-stage temperature control technology system, which combined with the temperature field dinite element analysis, to ensure full play to the performance advantages of various insulation materials.
2. The insulation system is based on JUCEG Insulation paper technology.
3. Low noise: Unique noise reduction measures are adopted in different parts to ensure that the noise control is better than the national standards.
Favorable to meet the power peak demands of summer, JUCEG's 35kV Three Phase Oil Immersed Transformer are suitable for distribution networks with high load rates under high temperatures and places with shock load and continuous overload requirements. Such as steel,metallurgical industry, railroad transportation, power plant, hydro power station, etc.
|
Rated
Capacity |
Voltage combination and tap range |
Vector Group |
Load loss kW |
load loss kW (75C) |
No-load current % |
Short circuit impedance % |
||
|
high voltage |
High voltage tapping range |
Low voltage kV |
||||||
|
30 |
6 6.3 10 10.5 |
±5 ±2×2.5% |
0.4 |
Dyn11 Yyn0 |
0.1 |
0.63 |
1.50 |
4.0 |
|
50 |
0.13 |
0.91 |
1.30 |
|||||
|
63 |
0.15 |
1.09 |
1.20 |
|||||
|
80 |
0.18 |
1.31 |
1.20 |
|||||
|
100 |
0.20 |
1.58 |
1.10 |
|||||
|
125 |
0.24 |
1.89 |
1.10 |
|||||
|
160 |
0.28 |
2.31 |
1.00 |
|||||
|
200 |
0.34 |
2.73 |
1.00 |
|||||
|
250 |
0.40 |
3.20 |
0.90 |
|||||
|
315 |
0.48 |
3.83 |
0.90 |
|||||
|
400 |
0.57 |
4.52 |
0.80 |
|||||
|
500 |
0.68 |
5.41 |
0.80 |
|||||
|
630 |
0.81 |
6.20 |
0.60 |
4.5 |
||||
|
800 |
0.98 |
7.50 |
0.60 |
|||||
|
1000 |
1.15 |
10.30 |
0.60 |
|||||
|
1250 |
1.36 |
12.00 |
0.50 |
|||||
|
1600 |
1.64 |
14.50 |
0.50 |
|||||
|
2000 |
1.94 |
18.30 |
0.40 |
5.0 |
||||
|
2500 |
2.29 |
21.20 |
0.40 |
|||||
|
3150 |
2.81 |
26.66 |
0.40 |
|||||
|
Aspect |
33 kV Distribution Transformer |
35 kV Distribution Transformer |
|
Nominal Voltage |
33 kV (common in many IEC-based systems) |
35 kV (often the highest equipment voltage Um in IEC standards) |
|
Highest Voltage for Equipment (Um) |
Up to 36 kV |
36–40.5 kV (provides operating margin) |
|
Common Use |
Used in primary or secondary distribution, e.g., stepping down 132/66 kV to 33 kV, or 33 kV to 11/0.4 kV |
Similar use in networks with 35 kV nominal voltage (common in China and parts of Asia) |
|
Typical Ratings |
500 kVA – 20 MVA+, oil-immersed or dry-type |
Nearly identical ratings and types |
|
Insulation & BIL |
Lightning impulse withstand around 170–200 kV |
Slightly higher, matching the 35 kV class |
|
Standards |
IEC 60076, IEEE/ANSI; common in India, UK, Middle East, Africa |
IEC 60076 (Um=36 kV class); used in China and some Asian regions |
|
Applications |
Urban/rural substations, industrial plants, commercial complexes, renewable step-up/step-down |
Same applications for grids standardized at 35 kV |
|
Physical Size & Cost |
Very similar to 35 kV units |
Slightly larger or costlier due to higher insulation level |
|
Efficiency & Losses |
Optimized for all-day efficiency and low losses |
Same efficiency focus |
Address
1-3/F, Building C, No. 288 Weiqi Road, Yueqing Economic Development Zone, Yueqing, Wenzhou, Zhejiang Province, China
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