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

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

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 Specifications

Capacity (KVA)	HV (KV)	HV Tapping	LV (KV)	Vector Group	No-load Loss (W)	On-load Loss (W)	No-load Current (%)	Short Circuit Impedance (%)
630	35	±5%	3.15 6.3 10.5	Yd11	830	7870	1.1	6.5
800	35	±5%	3.15 6.3 10.5	Yd11	980	9410	1	6.5
1000	35	±5%	3.15 6.3 10.5	Yd11	1150	11540	1	6.5
1250	35	±5%	3.15 6.3 10.5	Yd11	1410	13940	0.9	6.5
1600	35	±5%	3.15 6.3 10.5	Yd11	1700	16670	0.8	6.5
2000	35	±5%	3.15 6.3 10.5	Yd11	2180	18380	0.7	6.5
2500	35	±5%	3.15 6.3 10.5	Yd11	2560	19670	0.6	6.5
3150	35~38.5	±5%	3.15 6.3 10.5	Yd11	3040	23090	0.56	7
4000	35~38.5	±5%	3.15 6.3 10.5	Yd11	3620	27360	0.56	7
5000	35~38.5	±5%	3.15 6.3 10.5	Yd11	4320	31380	0.48	7
6300	35~38.5	±5%	3.15 6.3 10.5	Yd11	5250	35060	0.48	7.5
8000	35~38.5	±2*2.5%	3.15 3.3 6.3 6.6 10.5 11	Ynd11	7200	38480	0.42	7.5
10000	35~38.5	±2*2.5%	3.15 3.3 6.3 6.6 10.5 11	Ynd11	8700	45320	0.42	7.5

Package and Transportation Process

Step 1: Inquiry and Design

We respond to inquiries within 1 hour and recommend suitable transformers according to your needs. We provide quotations and payment terms, and our technical team confirms all drawing details within 7 days after payment.

Step 2: Production and Quality Control

After finalizing production drawings, we prepare materials, manufacture, and conduct rigorous quality inspections. We provide QC and test reports, with options for special accessories and Factory Acceptance Testing (FAT).

Step 3: Installation and Support

Our professional team provides installation guidance or on-site support. We offer over 2 years warranty service and ongoing technical support.

Certifications

Key Features

CE & IEC Certified - Meets international safety and performance standards (CE and IEC 60076)
High Efficiency, Low Loss - Optimized electromagnetic design minimizes no-load and load losses
Oil-Immersed Cooling - Excellent heat dissipation with optional ONAF cooling for high-temperature conditions
High-Grade Windings - Premium copper or aluminum conductors for superior conductivity and reliability
Robust & Safe Design - Fire-resistant materials, eco-friendly insulation, and low-noise operation
Customizable Options - Flexible voltage, capacity, tap range, bushing types, and monitoring accessories

Frequently Asked Questions

Who are we?

HENTG POWER is a professional designer, manufacturer and installer of power system solutions founded in 2011, specializing in reliable, high-performance solutions for global power systems.

How can we guarantee quality?

We conduct pre-production sampling, final inspections before shipment, and provide QC & test reports. We accept Factory Acceptance Testing (FAT) and offer over 2 years warranty service.

Why choose us?

We have professional drawing and technical teams with 30+ senior engineers offering 24/7 support with 30-minute response times. Our production capacity includes oil and dry type transformers up to 500KV 480MVA.

What services can we provide?

We accept OEM orders and negotiate business payment terms to meet customer requirements.

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