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.
