Oil Immersed MV/HV Distribution Transformers (400kVA - 1000kVA)
Product Specifications
Type: Distribution Transformer, Oil-filled Transformer
Material: Copper Winding
Frequency: 50Hz, 60Hz
Phase: Three
Input Voltage: 6kV, 10kV, 15kV, 35kV, 69kV, 100V, 110kV
Output Voltage: 400V, 208V, 200V, 415V, 127V, 9V
Insulation Class: Class F
Vector Connection: Ynd11
Key Features
Compliance with IEC, ANSI, and IEEE standards for safety and
performance
Compact and robust construction for space-saving and long-lasting
use
Energy efficient design with reduced no-load losses and low noise
operation
De-energized tap-changer for flexible voltage regulation
Hermetic sealing to prevent moisture ingress and maintain oil
quality
Technical Advantages
Optimized for 35kV medium voltage networks in industrial zones and
utility substations
Stable three-phase power supply for heavy-duty equipment
Efficient oil-immersed cooling system using mineral/ester
insulating oil
Reduced carbon footprint through minimized energy losses
Cost-effective solution with long lifespan and low maintenance
Technical Specifications (35kV Three-Phase Oil Immersed
Transformer)
| Capacity (kVA) | HV (kV) | LV (kV) | No-load Loss (W) | On-load Loss (W) | No-load Current (%) | Short Circuit Impedance (%) |
|---|
| 630 | 35 | 3.15/6.3/10.5 | 830 | 7870 | 1.1 | 6.5 |
| 800 | 35 | 3.15/6.3/10.5 | 980 | 9410 | 1.0 | 6.5 |
| 1000 | 35 | 3.15/6.3/10.5 | 1150 | 11540 | 1.0 | 6.5 |
| 1250 | 35 | 3.15/6.3/10.5 | 1410 | 13940 | 0.9 | 6.5 |
| 1600 | 35 | 3.15/6.3/10.5 | 1700 | 16670 | 0.8 | 6.5 |
| 2000 | 35 | 3.15/6.3/10.5 | 2180 | 18380 | 0.7 | 6.5 |
| 2500 | 35 | 3.15/6.3/10.5 | 2560 | 19670 | 0.6 | 6.5 |
| 3150 | 35-38.5 | 3.15/6.3/10.5 | 3040 | 23090 | 0.56 | 7.0 |
| 4000 | 35-38.5 | 3.15/6.3/10.5 | 3620 | 27360 | 0.56 | 7.0 |
| 5000 | 35-38.5 | 3.15/6.3/10.5 | 4320 | 31380 | 0.48 | 7.0 |
Our Manufacturing Process
Step 1: Consultation & Design
Our technical team responds within 1 hour to recommend suitable
transformers and provide quotations. After payment confirmation, we
finalize production drawings within 7 days, including all technical
specifications and parts lists.
Step 2: Production & Quality Control
Strict material screening followed by precision manufacturing.
Comprehensive quality inspections include QC reports and test
documentation. Factory Acceptance Tests (FAT) available upon
request.
Step 3: Installation & Support
Professional installation guidance with optional on-site support.
All transformers come with a minimum 2-year warranty and ongoing
technical assistance from our global network.
About HENTG POWER
How do we guarantee quality?
Pre-production samples, final inspections before shipment, and
comprehensive QC/test reports. We manufacture oil-type and dry-type
transformers up to 500KV/480MVA, complying with
ANSI/IEEE/DOE2016/CSA/IEC60076 standards.
Why choose us?
30+ senior engineers provide 24/7 technical support with 30-minute
response times. Custom drawings confirmed within 7 days. Global
installation and maintenance network.
What services do we provide?
OEM manufacturing, custom design solutions, and flexible payment
terms. Complete power system solutions including GIS, switchgear,
and substations.
