Cast Resin Dry-Type Transformer for Energy Storage Systems

The Resin Cast Dry-Type Transformer for Energy Storage Systems is designed for PCS impact conditions and long-duration operation. It delivers stable temperature rise performance, strong short-circuit resistance, and a highly reliable insulation system. Optimized for energy storage containers and integrated step-up systems, it ensures safe and stable operation while significantly reducing maintenance costs.

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180-1334-5718

Scope of application

Containerized Energy Storage

Designed for high-frequency charge and discharge cycles, with a focus on partial discharge performance and thermal stability.

Park-Level Energy Storage

Installed near load centers, emphasizing safety, reliability, and low maintenance requirements.

Wind & Solar Energy Storage Projects

Provides power-side fluctuation smoothing and grid support, ensuring stable and reliable operation for renewable energy integration.

Product Description

1 Harsh Environment Adaptability: Designed for high humidity, salt spray, and dust conditions, meeting high-level anti-corrosion and protection requirements.

2 Enhanced Overload & Thermal Shock Resistance: Built to withstand frequent charge/discharge fluctuations in energy storage applications.

3 Optimized for Harmonic Conditions: Specially engineered for nonlinear loads such as PCS systems, ensuring stable and reliable operation.

4 Low-Loss Design: Improved efficiency reduces overall system energy consumption and supports energy-saving operation.

5 Flexible Cabling & Compact Design: Multiple high/low voltage terminal configurations enable flexible layout and easier system integration.

6 Customizable Parameters: Capacity, voltage, and impedance can be tailored to different system requirements, supporting multi-platform and multi-solution applications.

Product Features

Low Loss & High Efficiency

No-load loss is 20% lower and load loss is 10% lower than national standards, fully meeting energy efficiency requirements.

Low Noise & Low Partial Discharge

Noise level is up to 10 dB lower than national standards, with partial discharge below 5 pC for enhanced reliability.

Certified Safety Performance

Passed F1, C2, and E2 tests for fire resistance, environmental adaptability, and thermal shock, allowing direct installation at load centers.

High-Level “3-Proof” Protection

Excellent resistance to moisture, salt spray, and mold, capable of stable operation at up to 98% humidity. No pre-drying is required after shutdown, reducing maintenance time and cost.

Strong Overload Capability

Uses Class H (180°C) insulation materials designed with Class F temperature rise (100K), providing a large thermal margin and strong overload performance.

Reliable Protection System

Equipped with a three-phase temperature monitoring and protection system with remote monitoring capability, and optional forced air cooling for demanding environments.

Main Parameters

Rated Capacity	1000～7500 kVA
High Voltage	6~35 kV
Low Voltage	0.315, 0.4, 0.55, 0.63, 0.69, 0.72, 0.8, 1.14 kV (customizable)
Impedance Voltage	6%、6.5%、7%、8%
Frequency	50/60Hz
Vector Group	Dy11、Yd11、Dy11y11、Yd11d11
Main Structure	Double-winding or three-winding (split-type)

Implementation Standard

GB/T 1094.1 Power Transformers – Part 1: General Requirements

GB/T 1094.3 Power Transformers – Part 3: Insulation Levels, Dielectric Tests and External Clearances in Air

GB/T 1094.5 Power Transformers – Part 5: Ability to Withstand Short Circuit

GB/T 1094.11 Power Transformers – Part 11: Dry-Type Transformers

GB/T 10228 Technical Specifications and Requirements for Dry-Type Power Transformers

GB 20052 Minimum Allowable Values of Energy Efficiency and Energy Efficiency Grades for Power Transformers

Technical Advantages

R&D Cloud Platform

An integrated digital platform combining electromagnetic optimization design, parametric modeling, performance analysis, structural optimization, and automatic drawing generation. It enables transformer design resource sharing and efficient data management, including search, modification, and version control.

Simulation Analysis

Comprehensive multi-physics simulation covering fluid flow, thermal field, electric field, leakage magnetic field, transient processes, and short-circuit forces. Each transformer series is optimized through thermal and flow analysis to accurately control winding temperature rise and hotspot distribution, ensuring reliable and stable performance.

Smart Operation & Maintenance Platform

By collecting key data such as temperature, current, voltage, vibration, and grid harmonics, the system enables real-time power quality analysis and fault alarms. It also supports mobile access for remote monitoring and intelligent O&M management.