RELIABLE MEDIUM VOLTAGE POWER FOR COMMERCIAL & INDUSTRIAL SYSTEMS
Designed for modern commercial facilities, industrial plants, infrastructure projects, and utility distribution systems, the 1000 kVA three phase medium voltage dry type transformer from PowerNex delivers safe, stable, and efficient voltage conversion from 13.8 kV medium-voltage networks to 480Y/277 V low-voltage distribution systems.
Engineered to meet ANSI, IEEE, and IEC standards, this dry type power transformer is ideal for applications where oil-filled transformers are restricted or undesirable. Its oil-free design significantly reduces fire risk, eliminates leakage concerns, and ensures environmentally friendly operation, making it suitable for indoor substations, industrial buildings, data centers, hospitals, and critical infrastructure projects.
Supplied with complete technical drawings, this transformer supports accurate engineering design, smooth project approval, and efficient on-site installation for EPC contractors, consultants, and system integrators.
TECHNICAL SPECIFICATIONS (STANDARD CONFIGURATION)
| Item | Specification |
| Rated Capacity | 1000 kVA |
| Transformer Type | Medium Voltage Dry Type Transformer |
| Phase | Three Phase |
| Primary Voltage | 13.8 kV (11 kV / 13.2 kV optional) |
| Secondary Voltage | 480Y/277 V (400 V / custom optional) |
| Frequency | 50 / 60 Hz |
| Cooling Method | AN (Air Natural), oil-free |
| Insulation System | Class F (standard) / Class H (optional) |
| Temperature Rise | 80K / 100K |
| Winding Material | Copper (standard) / Aluminum (optional) |
| Core Material | High-permeability, low-loss silicon steel |
| Installation | Indoor |
| Standards | ANSI, IEEE, IEC, DOE efficiency |
| Certifications | CE, UL, cUL (project-based) |
| Enclosure | Ventilated steel enclosure |
| Capacity Range Available | 100 kVA – 3000 kVA |
Specifications can be customized according to project requirements and regional standards.
HIGH-PERFORMANCE DRY TYPE DESIGN
PowerNex medium voltage dry type transformers are engineered with advanced electromagnetic and thermal design to ensure long-term performance under continuous and fluctuating loads.
Key performance advantages include:
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High-efficiency magnetic core to minimize no-load losses
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Optimized winding layout for reduced load losses
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Low partial discharge levels for enhanced insulation reliability
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Excellent short-circuit withstand capability
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Stable operation under balanced and unbalanced load conditions
This transformer is suitable for supplying lighting systems, HVAC equipment, motor drives, automation systems, UPS systems, and sensitive electronic load
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OIL-FREE SAFETY & ENVIRONMENTAL BENEFITS
Unlike oil-filled transformers, this dry type transformer offers significant safety and environmental advantages:
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No oil leakage or contamination risk
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Reduced fire hazard
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Lower insurance and compliance costs
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Clean and quiet operation
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Minimal routine maintenance
These benefits make it especially suitable for urban buildings, underground substations, enclosed electrical rooms, and environmentally sensitive locations.
Get Your Customized SolutionTECHNICAL DRAWINGS & DOCUMENTATION
Each 1000 kVA medium voltage dry type transformer can be supplied with complete technical drawings, including:
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General Arrangement (GA) drawings
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Outline and dimension drawings
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Electrical schematic and wiring diagrams
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Terminal and grounding details
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Installation and clearance recommendations
These drawings support design review, layout planning, foundation preparation, and installation, ensuring smooth coordination between electrical engineers, civil engineers, and installation teams.
Custom drawings can be prepared according to project specifications and local authority requirements.
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TYPICAL APPLICATIONS
This 1000 kVA three phase medium voltage dry type transformer is widely used in:
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Commercial buildings and office complexes
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Industrial manufacturing plants
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Data centers and IT facilities
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Hospitals and healthcare institutions
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Airports and transportation infrastructure
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Utility substations and distribution systems
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Renewable energy and energy storage projects
MAIN COMPONENTS & CONSTRUCTION DETAILS
Magnetic Core
Manufactured from high-grade silicon steel laminations with step-lap construction to reduce losses and noise.
High-Voltage Windings
Designed for medium voltage operation with reinforced insulation systems to ensure dielectric strength and long service life.
Low-Voltage Windings
Optimized conductor design to handle high current while maintaining low temperature rise.
Insulation System
VPI or cast resin insulation processes ensure moisture resistance, mechanical strength, and stable electrical performance.
Enclosure & Cooling System
Ventilated steel enclosure designed to promote natural air circulation while protecting internal components.
Protection & Monitoring (Optional)
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Temperature sensors (PT100 / PTC)
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Over-temperature alarms and trip contacts
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Electrostatic shielding for noise reduction
PROJECT CASE STUDY – INDUSTRIAL MANUFACTURING FACILITY
Application: Industrial Power Distribution Upgrade
Location: Southeast Asia
Industry: Manufacturing & Processing
Product Supplied: 1000 kVA Three Phase Medium Voltage Dry Type Transformer (13.8 kV → 480Y/277 V)
Project Background
The client required a reliable, indoor-installed transformer to step down medium voltage power for an industrial production facility. Oil-filled transformers were not permitted due to safety regulations and limited installation space.
Solution
PowerNex supplied a 1000 kVA dry type medium voltage transformer, designed to IEC standards and equipped with Class F insulation. Complete technical drawings were provided for seamless integration into the client’s electrical layout.
Result
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Stable and reliable power supply
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Improved fire safety and compliance
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Reduced maintenance requirements
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Smooth installation and commissioning
The transformer has been operating reliably under continuous industrial load conditions.
CUSTOMIZATION & ENGINEERING SUPPORT
PowerNex provides full customization options:
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Primary voltages: 11 kV, 13.2 kV, 13.8 kV
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Secondary voltages: 400 V, 480 V, 480Y/277 V
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Capacity range: 100 kVA – 3000 kVA
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Insulation and temperature rise options
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Enclosure and protection customization
Our engineering team supports customers from pre-sales consultation and transformer selection to drawing approval, installation guidance, and commissioning.
MANUFACTURING, QUALITY CONTROL & GLOBAL SUPPLY
Manufactured in China by a leading transformer manufacturer, supplier, wholesale exporter, and factory, PowerNex transformers undergo strict quality control procedures:
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Precision core cutting and assembly
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Advanced winding and insulation processing
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Routine and type testing
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Electrical and insulation verification before shipment
PowerNex supplies transformers to the United States, Canada, Brazil, Argentina, Australia, Indonesia, Malaysia, Philippines, UAE, Saudi Arabia, Russia, Germany, France, and other global markets.
YOUR TRUSTED PARTNER FOR MEDIUM VOLTAGE DRY TYPE TRANSFORMERS
Choosing PowerNex means:
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Factory-direct pricing
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Stable production capacity
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OEM & ODM support
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Consistent quality across projects
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Long-term partnership for distributors and EPC contractors
If you are sourcing dry type medium voltage transformers in various capacities such as 100 kVA, 160 kVA, 250 kVA, 400 kVA, 500 kVA, 630 kVA, 800 kVA, 1000 kVA, 1250 kVA, 1600 kVA, 2000 kVA, or up to 3000 kVA, PowerNex is ready to support your project with custom-engineered solutions, complete technical drawings, and reliable global delivery.
As a professional dry type transformer manufacturer, PowerNex offers fully customized three phase medium voltage dry type transformers tailored to your voltage levels, insulation systems, installation conditions, and regional standards, ensuring optimal performance for commercial, industrial, and infrastructure applications worldwide.
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