Product Details
Company Profile

Outdoor Electrical Step Down Step Up Power Transformer 35kV 630kVA IEC ANSI Standard

Product Overview

High-performance three-phase oil-immersed transformer for step-up/step-down applications in power distribution systems.

Key Specifications

Attribute	Value
Type	Oil-filled Distribution Transformer
Material	Copper
Frequency	50Hz, 60Hz
Phase	Three
Input Voltage	6kV, 3kV, 10kV, 69kV, 110kV, 115kV, 132kV, 400kV, 220kV
Output Voltage	415V, 380V, 220V, 110V, 440V, 480V, 11kV
Cooling Method	ONAN ONAF OFAF
Standard	IEC ANSI
Vector Group	Yd11/YNd11

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

Key Features

Optimized for 35kV medium voltage networks in industrial zones and utility substations
Stable and balanced three-phase power supply for heavy-duty equipment
Efficient oil-immersed cooling system with mineral/ester insulating oil
Robust construction for demanding outdoor environments
Hermetic sealing to prevent moisture ingress

Ordering Process

Step 1: Consultation & Quotation
We respond within 1 hour with suitable transformer recommendations, detailed quotations, and payment terms. Our technical team confirms all drawing details within 7 days after payment.

Step 2: Production & Quality Control
After design approval, we prepare stock, manufacture, and conduct rigorous quality inspections. We provide QC reports and test reports for all products.

Step 3: Installation & Support
Professional installation guidance and on-site support available. All products come with a 2+ year warranty.

Why Choose HENTG

30+ senior engineers offering 24/7 technical support with 30-minute response time
100,000m² factory with 250 workers and 4 production lines
10,000+ sets annual production capacity
100% OQC testing with 25 detection points
15 years power transformer design and manufacturing experience
Compliance with GB 20052-2024/ANSI/IEEE/DOE2016/CSA/IEC60076 standards

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 do we guarantee quality?

Pre-production samples, final inspection before shipment, QC & test reports, and Factory Acceptance Test (FAT). We manufacture oil and dry type transformers up to 500KV 480MVA.

What services do we provide?

OEM services, professional technical support, and customized payment terms.

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