Product Details
Company Profile

Electrical Substation Power Transformer High Voltage 500KVA 35kV To 3.15kV/6.3kV/10.5kV

Product Specifications

Attribute	Value
Frequency	50Hz, 60Hz, 50/60Hz
Phase	Three
Application	Distribution system
Output Voltage	415V, 110V, 220V, 380V, 400V, 440V
Input Voltage	10.5kV, 3kV, 12.47kV, 6.6kV, 6.3kV, 6kV
Type	Oil-Immersed Transformer
Vector Group	Yd11/YNd11
Material	Aluminum, Copper
Cooling Method	ONAN ONAF OFAF
Primary voltage	35~38.5KV±5%

Product Overview

35kV series power transformers feature advanced design with significant improvements in material, structure, and manufacturing processes.

Key Advantages

Enhanced Reliability: Oil-immersed design offers high reliability in both normal and extreme conditions
Lower Carbon Footprint: Reduces energy losses for lower environmental impact
Cost-effective: Long lifespan and low maintenance costs ensure high return on investment
Global Support Network: Backed by worldwide network of technicians and service centers

Technical Data For 35KV Three-Phase Oil Immersed Transformer (630KVA~31500KVA)

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					980	9410	1
1000					1150	11540	1
1250					1410	13940	0.9
1600					1700	16670	0.8
2000					2180	18380	0.7
2500					2560	19670	0.6
3150	35~38.5	±5%	3.15 6.3 10.5		3040	23090	0.56	7
4000					3620	27360	0.56
5000					4320	31380	0.48
6300					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
10000					8700	45320	0.42
12500					10080	53870	0.4	8
16000					12160	65840	0.4
20000					14400	79520	0.4
25000					17020	94050	0.32
31500					20220	112860	0.32

Our Production Process

Step 1: Inquiry & Design
We respond within 1 hour with suitable transformer recommendations, quotations, and payment terms. Our professional drawing and technical teams will confirm all drawing contents with you within 7 days after payment, including technical data, weight, and parts list.

Step 2: Production & Quality Control
After design approval, we prepare stock, produce, and conduct rigorous quality inspections before shipment. We provide QC reports and test reports, with raw materials strictly screened. Special accessory requirements can be accommodated.

Step 3: Installation & Support
Our professional team provides installation guidance and on-site support. We offer more than 2 years warranty service, ensuring long-term reliability for your power systems.

Our Manufacturing Capabilities

100,000m² factory with 250 workers and 30+ engineers
4 production lines with 10,000+ sets annual capacity
100% OQC testing with 25 detection contents
15 years power transformer design and production experience
Compliance with GB 20052-2024/ANSI/IEEE/DOE2016/CSA/IEC60076 standards
Cross-industry power transformer solutions
Global on-site technical support

Key Features

Optimized for 35kV Medium Voltage Networks: Designed for industrial zones, rural power grids, and utility substations with efficient step-down transformation from 35kV to distribution levels.
Stable Three-Phase Power Supply: Delivers consistent voltage for heavy-duty equipment, ideal for industrial plants and large-scale energy consumers.
Efficient Oil-Immersed Cooling: Uses mineral/ester insulating oil for effective heat dissipation and dielectric insulation, enhancing lifespan.
Robust Construction: Built to withstand electrical, mechanical, and thermal stress in demanding environments with hermetic sealing.

Frequently Asked Questions

Q: Who are we?

HENTG POWER is a professional designer, manufacturer and installer of power system solutions worldwide, founded in 2011 with 100,000 square meter facility specializing in reliable, high-performance power systems.

Q: How can we guarantee quality?

We conduct pre-production samples, final inspections before shipment, and provide QC & test reports. We accept Factory Acceptance Tests (FAT) and manufacture oil/dry type transformers up to 500KV 480MVA, complying with international standards.

Q: Why choose us?

Our professional drawing and technical teams confirm drawings within 7 days, with 30+ senior engineers providing 24/7 support and 30-minute response times.

Q: What services can we provide?

We accept OEM orders with negotiated business payment terms, offering comprehensive power transformer solutions.

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