2500 kVA three phase cast resin dry type transformer for solar PV and battery energy storage systems, medium voltage 11kV 22kV 33kV indoor power distribution transformer with red epoxy resin coils and industrial steel frame.

2500 kVA Dry Type Transformer – Three Phase Cast Resin Transformer for Solar PV & Energy Storage Systems (11kV 22kV 33kV)

Manufactured by Yawei Transformer, this industrial-grade 2500 kVA dry type cast resin transformer is engineered for stable and efficient indoor and semi-outdoor power distribution across industrial, commercial, utility, and renewable energy projects. It is designed for medium- and high-voltage applications up to 35 kV, making it suitable for modern electrical networks, solar PV plants, energy storage systems, and smart grid installations.

Rated Capacity: 2500 kVA (customizable range 100–10,000 kVA depending on project requirements)
Primary Voltage: Medium- and high-voltage options available up to 35 kV (6.6 kV / 11 kV / 22 kV / 33 kV configurations supported)
Secondary Voltage: 400V, 415V, 480Y/277V, 690V, or other site-specific low-voltage outputs
Transformer Type: Three-phase dry type cast resin distribution transformer for indoor systems
Installation Type: Indoor or semi-outdoor installation, suitable for floor or platform mounting
Cooling Method: Air Natural (AN) standard cooling; Air Forced (AF) optional for high-load or high-temperature conditions
Winding Configuration: Dyn11, Yyn0, delta/wye, or customized vector group designs available
Insulation System: Epoxy resin cast insulation, moisture-proof, fire-resistant, environmentally safe, low-maintenance design
Standards: IEC, ANSI, and IEEE compliant manufacturing
Applications: Industrial plants, commercial buildings, data centers, substations, solar PV farms, wind power systems, and energy storage projects

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2500 kVA Dry Type Cast Resin Transformer

Engineered for Solar PV & Energy Storage Systems (BESS). High-capacity, fire-safe engineering solutions for global infrastructure power grids.

1. 2500 kVA Dry Type Transformer Overview

Manufactured by Yawei Transformer, the 2500 kVA high-capacity dry type cast resin transformer is specifically engineered for modern renewable energy systems, including solar PV farms, battery energy storage systems (BESS), smart grids, and international small-to-medium EPC projects worldwide. Utilizing advanced epoxy cast resin insulation technology, this dry type transformer delivers exceptional safety, high fire resistance, low maintenance, and superior environmental compliance. It serves as an ideal step-up or distribution solution for indoor, substation, or containerized enclosures where oil-filled transformers present environmental or fire hazards.

Designed to fully comply with rigorous international standards such as IEC, ANSI, IEEE, and GB/T, this 2500 kVA transformer supports medium- and high-voltage applications up to 35kV (including standard 11kV, 22kV, 33kV, and 34.5kV grids). Available for factory direct supply, full customization, and bulk wholesale delivery, Yawei’s power infrastructure solutions are trusted by developers and engineers across the USA, Canada, UK, Germany, France, Australia, Mexico, Brazil, and other global markets.

2. Technical Specifications & Parameters

Parameter	Specification
Rated Capacity	2500 kVA (Fully customizable, factory range: 100–10,000 kVA)
Primary Voltage	11 kV / 13.2 kV / 22 kV / 33 kV / 34.5 kV / 35 kV (Project-specific MV)
Secondary Voltage	400 V / 480 V / 600 V / 630 V / 690 V (Optimized for inverters & BESS)
Transformer Type	Three-Phase, Cast Resin, Eco-Friendly Dry Type Power Transformer
Installation Type	Indoor, semi-outdoor, or integrated inside container enclosures
Cooling Method	AN (Air Natural) standard / AF (Air Forced) for peak load support
Winding Config	Dyn11, Yyn0, or other customizable vector groups
Voltage Regulation	Off-circuit tap changer (OCTC) / Optional On-load tap changer (OLTC)
Insulation Class	Class F or Class H fire-resistant cast resin insulation
Applicable Standards	IEC, ANSI, IEEE, GB/T (Optional UL / CSA certifications available)
Applications	Solar PV farms, energy storage systems (BESS), microgrids, industrial plants
Dimensions	Approx. 3200 mm (L) × 1400 mm (W) × 2100 mm (H) (Customizable)
Weight	Approx. 4,800 – 5,800 kg depending on configuration
Price Range	Contact Yawei Factory for custom wholesale project quotes

3. Design & Construction Features

Advanced Cast Resin Insulation

High-grade epoxy resin vacuum casting ensures void-free insulation, exceptional mechanical strength, and superior short-circuit resistance.

Renewable-Optimized Design

Engineered specifically to handle the harmonic distortions and cyclic loading patterns typical of solar inverters.

Dual Cooling Modes (AN/AF)

Standard Air Natural (AN) cooling provides reliable continuous power, while Air Forced (AF) scales up performance during peak generation.

Compact & Containerized

Built with robust materials, perfect for integration into compact outdoor step-up substations or ISO shipping containers.

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4. Solar, Storage, and Infrastructure Applications

Solar PV Farms

Efficiently stepping up low-voltage solar inverter outputs to 11kV, 22kV, or 33kV medium-voltage collector grids.

Energy Storage Systems (BESS)

Supporting bi-directional power flow between battery storage networks and the utility grid seamlessly.

Overseas EPC Infrastructure

Perfectly scaled for 50MW or smaller utility/commercial renewable microgrid projects globally.

Industrial & Smart Grids

Supplying robust, fire-safe electricity to data centers, hospitals, and heavy plants requiring zero oil-leakage risks.

5. Customization & Factory Supply Options

Yawei Transformer operates as a direct-to-market manufacturer, offering full engineering customization for your 2500 kVA systems:

Tailored primary and secondary voltage ratios to match specific inverter technologies.
Custom structural dimensions to fit tightly within containerized skids or existing indoor rooms.
Integration of specialized low-voltage wind-shielding or dual-low-voltage windings for split-inverter systems.
Wholesale procurement & Bulk pricing support for global developers, EPC contractors, and distributors.

6. Installation & Maintenance

Virtually Maintenance-Free: The solid-cast insulation structure eliminates oil checks or purification.
Thermal Monitoring: Equipped with PT100 temperature sensors and digital controllers for automated cooling fan safety.

7. Logistics & Compliance

Global Supply Chain: Direct site delivery and custom clearance documentation assistance worldwide.
Fire-Safe & Clean: Self-extinguishing materials with zero risk of soil or water contamination from oil spills.

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8. Frequently Asked Questions (FAQ)

Q1: Can the 2500 kVA transformer be configured with dual low-voltage windings?

Yes. For solar applications, Yawei can customize the transformer with dual or multiple low-voltage outputs to connect two separate solar inverters to a single grid-tied transformer.

Q2: What certificates does Yawei provide for international renewable energy tenders?

We provide full testing reports in accordance with IEC/IEEE standards. Our factory supports certifications required for international markets including CE, UL, and CSA based on project requirements.

Q3: Does Yawei support customized enclosures for harsh outdoor environments?

Absolutely. We design custom IP/NEMA rated steel or stainless steel enclosures to protect the dry type transformer against coastal salt spray, desert dust storms, or high humidity.

Over 20 years of manufacturing excellence. True factory-direct advantages, faster lead times, and global EPC project compliance.

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