Storage-Dedicated Cast-Resin Dry-Type Transformer
The energy storage dedicated cast resin dry-type transformer is engineered for PCS impulse and long-duration operation, with more stable temperature rise, stronger short-circuit resistance, and a reliable insulation system; it fits energy storage containers and integrated step-up systems while reducing O&M costs.
Product Introduction
Key Specifications
Product 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, 1.14kV (variable)
Impedance voltage
6%、6.5%、7%、8%
Frequency
50/60Hz
Vector group
Dy11、Yd11、Dy11y11、Yd11d11
Main structure
Two-winding or three-winding (split type)
Applications
Containerized energy storage
High-frequency charge/discharge conditions, with focus on partial discharge levels and thermal stability
Park-level energy storage
Installed close to load centers, emphasizing safety and low maintenance
Wind-solar-storage projects
Generation-side fluctuation smoothing and grid-connection support, focusing on stable operation
Product Overview
- Designed for harsh environments with high humidity, high salt fog, and high dust, meeting high-grade three-proofing (moisture, salt fog, and mold) requirements
- Enhanced overload and thermal shock tolerance to handle frequent charge-discharge fluctuations in energy storage applications
- Optimized design for harmonic conditions, suited to nonlinear load scenarios such as PCS
- Low-loss design for higher operating efficiency, helping systems reduce overall energy consumption
- Flexible incoming and outgoing line options with multi-directional high voltage and low voltage arrangements for a more compact, integration-friendly structure
- Capacity, voltage and impedance are customizable per system, meeting multi-platform and multi-solution configuration needs
Product Features
Low Loss
No-load loss is 20% lower than the national standard and load loss is 10% lower. Meets national energy efficiency requirements.
Low noise, low partial discharge
Noise levels 10 dB below the national standard, with partial discharge below 5 pC.
Strong "three-proof" capability
Moisture-proof, salt-fog-proof, and mold-proof. Operates normally at 98% humidity. Can be put back into operation after shutdown without pre-drying, reducing maintenance time and cost.
Three Characteristic Tests
The product passes F1, C2, and E2 class combustion, environmental, and thermal shock tests; flame-retardant and fire-resistant, it can be installed directly at load centers.
Strong overload capability
Uses Class H (180℃) insulation materials with a Class F temperature rise design (100K). Large insulation system margin and strong overload capability.
Sensitive and Reliable Protection Systems
Equipped with a temperature control and protection system featuring three-phase scanning and remote monitoring, plus a forced air cooling system to meet special environmental needs.
Standards and certifications
GB/T 1094.1
Power Transformers – Part 1: General
GB/T 1094.3
Power Transformers Part 3 Insulation Levels, Insulation 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 Parameters 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
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.
