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CE Certified 35KV Oil Immersed Power Transformer with 1250KVA 5000KVA High Efficiency and Low Loss

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CE Certified 35KV Oil Immersed Power Transformer with 1250KVA 5000KVA High Efficiency and Low Loss

HENTG POWER CE Certified Oil-Immersed Power Transformer 35KV Distribution & Power Transformer 1250KVA 5000KVA 6300KVA

VR
PRODUCTS DESCRIPTION

Our CE Certified Oil-Immersed Power Transformer is designed for efficient and reliable power distribution in industrial, commercial, and utility applications. Featuring advanced oil insulation, high-grade copper or aluminum windings, and optimized electromagnetic design, it ensures low losses, high reliability, and long service life.

Available in 1250kVA, 5000kVA, and 6300kVA, this 35kV transformer supports stable voltage supply for substations, factories, renewable energy, and urban distribution networks.

Technical Data For 35KV Three-Phase Oil Immersed Transformer
(630KVA~31500KVA)
Capacity
HV
HV
LV
Vector
No-load Loss (W)
On-load Loss (W)
No-load Current (%)
Short Circuit
(KVA)
(KV)
(Tapping)
(KV)
Group
Impedance (%)
630
800
1000
1250
1600
2000
2500
35
±5%
3.15
6.3
10.5
Yd11
830
980
1150
1410
1700
2180
2560
7870
9410
11540
13940
16670
18380
19670
1.1
1
1
0.9
0.8
0.7
0.6
6.5
3150
4000
5000
35~38.5
±5%
3.15
6.3
10.5
3040
3620
4320
23090
27360
31380
0.56
0.56
0.48
7
6300
5250
35060
0.48
7.5
8000
10000
35~38.5
±2*2.5%
3.15
3.3
6.3
6.6
10.5
11
Ynd11
7200
8700
38480
45320
0.42
0.42
12500
16000
20000
25000
31500
10080
12160
14400
17020
20220
53870
65840
79520
94050
112860
0.4
0.4
0.4
0.32
0.32
8

PRODUCTION AND TRANSPORTATION PROCESS
Step 1:
We will respond to your inquiry within 1 hour and recommend suitable transformer according to your needs. At the same time, we will provide you with reasonable quotations and payment terms.We have a professional and independent drawing team and technical team, and we will confirm all the contents on the drawing with you within 7 days after payment. The drawing usually contains technical data, weight and parts list. If you have any questions, please click here to consult.
Step 2:
After designing the production drawing, the factory will prepare the stock, produce, and conduct quality inspection
before shipment. If you have special accessory requirements, we can provide you with accessories. Our raw materials are strictly screened. In the quality inspection stage, we will provide you with the dual guarantee of QC report and test report to escort your products.
Step 3:
We have a professional team to guide the installation, and also support on-site installation. We will provide you with more than 2 years of warranty service. Welcome to join us and create a win-win situation. Click here to start our
business now.
If you have any questions, welcome to click here for discussion !!!
CERTIFICATIONS
KEY FEATURES
  1. CE & IEC Certified – Meets International Safety and Performance Standards

    • Fully compliant with CE and IEC 60076 standards.

    • Ensures high operational safety, reliability, and international acceptance.

    • Suitable for global projects, substations, and industrial installations.

  2. High Efficiency, Low Loss – Optimized Design Reduces No-Load and Load Losses

    • Advanced electromagnetic core and winding design minimize energy loss.

    • Reduced no-load losses for cost-effective operation during idle periods.

    • Low load losses improve efficiency and save operational costs.

    • Ideal for continuous-duty applications and high-power distribution networks.

  3. Oil-Immersed Cooling – Excellent Heat Dissipation and Overload Capacity

    • High-quality transformer oil provides natural cooling and insulation.

    • Optional ONAF (Oil Natural Air Forced) cooling for high-temperature or overload conditions.

    • Efficient thermal management prolongs transformer life and ensures stable performance.

  4. High-Grade Copper/Aluminum Windings – Reliable Long-Term Operation

    • Premium copper or aluminum conductors ensure superior conductivity.

    • Precisely wound coils reduce stray losses and improve voltage regulation.

    • Designed for continuous operation under industrial load conditions.

  5. Robust & Safe – Fire-Resistant, Environmentally Friendly Insulation

    • Cast-resin or mineral-oil insulation provides excellent dielectric strength.

    • Fire-resistant materials minimize risk in indoor and high-density environments.

    • Eco-friendly design prevents oil leakage and environmental contamination.

    • Low-noise operation enhances comfort in commercial or urban installations.

  6. Customizable Options – Voltage, Capacity, Tap Range, Bushings, and Accessories

    • Supports a wide range of primary and secondary voltages to meet project requirements.

    • Flexible capacity options: 1250kVA, 5000kVA, 6300kVA, or custom.

    • Tap changers, bushing types, cooling methods, and monitoring accessories available.

    • Fully adaptable to specific industrial, renewable energy, or urban distribution applications.

Q: Who are we?
HENTG POWER is a professional designer, manufacturer and installer of power system solution around the World, was
founded in 2011, occupies 100,000 square meter. specializing in reliable, high-performance solutions for global power systems
Q: How can we guarantee quality?
Always a pre-production sample before mass production; Always final Inspection before shipment, We
will provide QC & test reports. We accept FAT(Factory Acceptance Test). Factory can manufacture oil type and dry type
distribution transformer, max 500KV 480MVA power transformer, GIS, switchgear, substation, based on ANSI/IEEE/DOE2016/CSA/IEC60076 standard. We will provide you with the guarantee service of over 2 years.
Q: Why choose us?
We have the professional and independent drawing team and technical team, It is expected that we can confirm all the contents on the drawings with you within 7 days. we have a professional technical team with 30+ senior engineers offer 24 hours online service and response within 30 min.
Q: What services can we provide ?
Accept OEM, business payment are negotiated.
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