For Energy Storage Open-Wound Dry-Type Transformer
The energy-storage open-type dry-type transformer is an efficient, safe and eco-friendly transformer designed for energy storage applications in hospitals, smart campuses, solar-storage-charging stations and data centers. It adopts an oil-free open-type design with excellent insulation performance, low losses and outstanding short-circuit withstand capability. With good heat dissipation and low-noise operation, it adapts to a variety of complex environments and supports both natural and forced air cooling.
Product Introduction
Key Specifications
Capacity Range
100 kVA - 5000 kVA
Voltage class
Primary voltage: 6 kV, 10 kV, 35 kV
Insulation Class
Class F or Class H
Cooling Method
Natural air cooling (AN) or forced air cooling (AF)
Frequency
50 Hz or 60 Hz
Short-circuit impedance
4% - 6%
Applications
Commercial and industrial energy storage projects
Campus energy storage stations, emphasizing system integration and heat dissipation efficiency
PV-storage-charging station
Energy storage for charging stations, with focus on low losses and noise control
Data Center Peak Shaving
Server-room-side energy storage and peak shaving/valley filling, emphasizing reliability and easy maintenance
Product Overview
- Open, unencapsulated winding structure provides excellent heat dissipation, strong overload capability, and safe voltage transformation.
- DuPont Nomex® VPI vacuum pressure impregnation insulation system with a compact structure and rational layout.
- Withstands high temperatures up to 220℃ and low temperatures down to -40℃, with strong insulation performance meeting diverse energy storage environment requirements.
- Flame-retardant, non-combustible, and explosion-proof, suitable for hospitals, smart parks, solar-storage-charging stations, data centers, and more.
- Equipped with an intelligent transformer terminal and IoT cloud platform for smart O&M.
Product Features
High Safety
Oil-free design eliminates oil leakage and fire risks, ideal for applications with extremely high safety requirements such as hospitals and data centers.
Excellent insulation performance
High-quality insulation materials with Class F or Class H insulation rating maintain excellent insulation performance even in high-temperature and high-humidity environments.
Good Heat Dissipation Performance
Natural air cooling (AN) or forced air cooling (AF) provides good heat dissipation, keeping the equipment at a stable operating temperature under high loads and meeting the long-duration operation requirements of energy storage systems.
Strong Short-Circuit Withstand Capability
The high-voltage and low-voltage coils adopt continuous winding and foil structure designs and are treated with vacuum pressure impregnation (VPI), providing extremely high short-circuit and surge resistance to ensure transformer reliability under various operating conditions.
Low Loss, Energy Saving and Eco-Friendly
High-permeability grain-oriented silicon steel laminations and an advanced 45° fully mitered step-lap lamination process reduce no-load loss and no-load current, minimizing energy loss during operation and meeting environmental protection and energy-saving standards.
Low operating noise
Optimized core design and vibration damping keep operating noise below 55 dB, making it ideal for noise-sensitive locations such as hospitals and smart parks.
Standards and certifications
GB/T 1094.1-2013
Power Transformers – Part 1: General
GB/T 1094.3-2017
Power Transformers Part 3: Insulation Levels, Insulation Tests and External Clearances in Air
GB/T 1094.5-2008
Power transformers Part 5: Ability to withstand short circuit
GB/T 1094.10-2022
Power Transformers Part 10: Determination of Sound Levels
GB/T 1094.11-2022
Power Transformers - Part 11: Dry-Type Power Transformers
GB/T 1094.12-2013
Power Transformers – Part 12: Loading Guide for Dry-Type Power Transformers
GB/T 10228-2015
Technical Parameters and Requirements for Dry-Type Power Transformers
Technical Advantages
R&D cloud platform
Integrates electromagnetic optimization design, parametric drawing, performance analysis, structural optimization, and automatic drawing output for transformers, enabling shared transformer design resources and search, modification, and version control of all kinds of data.
Simulation Analysis
Flow field, temperature field, electric field, leakage magnetic field, wave process, and short-circuit force. The R&D and design of every product series are verified through flow field and temperature field simulation analysis to determine the winding average temperature rise and hot-spot temperature, ensuring product performance.
Smart O&M platform
By collecting key data such as transformer temperature, current, voltage, vibration, and grid harmonics, it enables online power quality analysis and fault alarms, and can be installed on mobile phones.
