Van Gogh Electric,Epoxy resin cast dry-type transformer,Electronic equipment & Instruments
SUMEC INTERNATIONAL TECHNOLOGY CO.,LTD
The supplier hasn’t listed a price. We can get their current prices and MOQ.
Verify from $29 · written report in 3 business days · 100% refund if not satisfied

Van Gogh Electric,Epoxy resin cast dry-type transformer,Electronic equipment & Instruments
SUMEC INTERNATIONAL TECHNOLOGY CO.,LTDThe supplier hasn’t listed a price. We can get their current prices and MOQ.
Verify from $29 · written report in 3 business days · 100% refund if not satisfied
About this product
- Size: ·
- Color: ·
- Phase: Other
- Principle: Other
- Insulation mode: Other
- Exports to: Mainland China, Middle East
About this product
- Size: ·
- Color: ·
- Phase: Other
- Principle: Other
- Insulation mode: Other
- Exports to: Mainland China, Middle East
Product details
| Size | · |
|---|---|
| Color | · |
| Phase | Other |
| Principle | Other |
| Insulation mode | Other |
Product details
| Size | · |
|---|---|
| Color | · |
| Phase | Other |
| Principle | Other |
| Insulation mode | Other |
From the supplier
Dry-Type Transformers Below 35kV: Overview
Dry-type transformers below 35kV are oil-free power equipment utilizing epoxy resin casting or Nomex paper insulation, widely applied in distribution systems. Key specifications include a voltage class ≤35kV and capacity ranging from 30 to 6300kVA. Below is an analysis of their structure, performance, and applications:
I. Structural Features
Winding Technology
High-voltage windings are made of enameled copper wire or copper foil, while low-voltage windings primarily use copper foil. All windings are reinforced with fiberglass and vacuum-cast in epoxy resin, forming a robust, bubble-free insulation layer.
Core Design
Constructed from grain-oriented cold-rolled silicon steel sheets, assembled with a 45° fully staggered step-lap joint process. Surface resin coating provides rust resistance and noise reduction.
Cooling System
Integrated longitudinal ventilation channels enable natural cooling. Forced-air cooling (via fans) can boost rated capacity by 40–50%.
II. Performance Advantages
Safety & Environmental Benefits
Flame-retardant, self-extinguishing, and free of toxic emissions. Eliminates the need for fireproof or explosion-proof facilities, enabling direct installation in load centers.
Reliability
Partial discharge levels ≤5pC (≤10pC for certain models), robust resistance to short circuits and lightning strikes, and operation in temperatures from -30°C to +40°C.
Energy Efficiency
No-load losses 20% below national standards, load losses 15% lower, and noise reduced by ≥15%.
III. Typical Applications
High-Risk Environments: High-rise buildings, airports, commercial hubs, and other fire-sensitive locations.
Harsh Conditions: Humid, dusty, or corrosive atmospheres, and industrial settings with frequent load cycling.
Smart Features: Optional BWDK temperature control systems with platinum resistance sensors for real-time winding monitoring and automated cooling activation.
These transformers minimize footprint through compact design while achieving low lifecycle costs due to maintenance-free operation.
From the supplier
Dry-Type Transformers Below 35kV: Overview
Dry-type transformers below 35kV are oil-free power equipment utilizing epoxy resin casting or Nomex paper insulation, widely applied in distribution systems. Key specifications include a voltage class ≤35kV and capacity ranging from 30 to 6300kVA. Below is an analysis of their structure, performance, and applications:
I. Structural Features
Winding Technology
High-voltage windings are made of enameled copper wire or copper foil, while low-voltage windings primarily use copper foil. All windings are reinforced with fiberglass and vacuum-cast in epoxy resin, forming a robust, bubble-free insulation layer.
Core Design
Constructed from grain-oriented cold-rolled silicon steel sheets, assembled with a 45° fully staggered step-lap joint process. Surface resin coating provides rust resistance and noise reduction.
Cooling System
Integrated longitudinal ventilation channels enable natural cooling. Forced-air cooling (via fans) can boost rated capacity by 40–50%.
II. Performance Advantages
Safety & Environmental Benefits
Flame-retardant, self-extinguishing, and free of toxic emissions. Eliminates the need for fireproof or explosion-proof facilities, enabling direct installation in load centers.
Reliability
Partial discharge levels ≤5pC (≤10pC for certain models), robust resistance to short circuits and lightning strikes, and operation in temperatures from -30°C to +40°C.
Energy Efficiency
No-load losses 20% below national standards, load losses 15% lower, and noise reduced by ≥15%.
III. Typical Applications
High-Risk Environments: High-rise buildings, airports, commercial hubs, and other fire-sensitive locations.
Harsh Conditions: Humid, dusty, or corrosive atmospheres, and industrial settings with frequent load cycling.
Smart Features: Optional BWDK temperature control systems with platinum resistance sensors for real-time winding monitoring and automated cooling activation.
These transformers minimize footprint through compact design while achieving low lifecycle costs due to maintenance-free operation.
About the supplier
- ✓Exhibited at 2 recent Canton Fairs
- ✓Foreign Trade Company
- ✓Founded 1999
- ✓1 certificate on file
Manufacturing exhibitors show in Phase 1 of the Canton Fair, 15 to 19 October 2026.
- Exhibited at 2 recent Canton Fairs
- Foreign Trade Company
- Founded 1999
- 1 certificate on file







