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.