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Oil Immersed Electrical Hv Mv Transformer 400kva 1000kva 3 Phase Ynd11 Vector Connection

Oil Immersed Electrical HV/MV Transformer 400kVA - 1000kVA 3 Phase Ynd11 Vector Connection

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.

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