Cast Resin Transformer – Up to 35kV Class

Basic Parameters

 Standard: IEC60076

 Voltage Range: 1.1~35kv

 Rated Capacity: 100-25000kVA

 Core material: Silicon Steel

 Insulation Temperature: 150℃/180℃

 Cooling way: AN/AF/AFWF

 Impedance: 4-8%

 Vector group: Dyn11/Yyn0 / others on request

 Tapping Range: ±2*2.5%/±5%

 Working temperature: -20℃~60℃

Key Product Features

Exceptional Reliability & Low Losses

Optimized design delivers low partial discharge (PD), minimal noise (enhanced by a nano-paint self-leveling process), and very low loss operation, translating to higher energy efficiency and lower total cost of ownership.

Superior Environmental Adaptability

Outstanding moisture-resistant performance, capable of stable operation in high-humidity environments, including 100% relative humidity.

Robust Short-Circuit Design

Designed for superior mechanical strength and excellent resistance to dynamic and thermal stresses during a short circuit. Passed stringent type tests of withstanding 150% overload in forced air-cooling conditions.

International Quality Compliance

One of the earliest manufacturers in China to pass the rigorous KEMA E2, C2, and F1 tests for environmental, climatic, and fire behavior—critical certifications for international market acceptance.

Advanced Simulation-Driven Design

Utilizes electric field, temperature field, and magnetic field simulation analysis to optimize core and coil design for maximum performance and longevity.

Smart Grid Ready

Provides intelligent transformer solutions, including real-time online big data cloud diagnosis and monitoring for enhanced operational control and predictive maintenance.

Technical Series Overview

10kv Series

• Customization: Supports customization of parameters exceeding standard IEC requirements.

• Safety & Fire Protection: Inherently safe, flame-retardant, self-extinguishing, and pollution-free operation. Ideal for installation in critical load centers where fire safety is paramount.

• Maintenance & Costs: Maintenance-free design and easy installation result in low overall operating and life-cycle costs.

• Robustness: Features low temperature rise, high structural stability, and strong seismic resistance for reliable long-term service.

• Scope of Application: Excellent environmental adaptability suitable for installations with large seasonal load fluctuations or intermittent overload requirements (e.g., commercial buildings, hospitals, and light industrial facilities).

35kV Series

• Short Circuit Withstand: Winding structure optimized through dynamic thermal stability simulation analysis, resulting in high transformer short circuit design strength.

• Overload Capacity: Capable of long-term reliable operation, with a strong overload capacity even without forced air cooling (AF).

• Impact Resistance: Careful distribution of winding capacitance ensures strong resistance to lightning and switching impulse voltages.

• Fire Safety: Flame-retardant and self-extinguishing, emitting no toxic gases during combustion.

• Scope of Application: High-density power demand locations like densely populated urban substations, large-scale data centers, and heavy industrial facilities with limited space.

Core Components & Engineering

Transformer Core

Material & Design: Constructed from grain-oriented and cold-rolled silicon steel plates with high magnetic conductivity to minimize stray flux losses and ensure high efficiency.

Joint Structure: All laminations are precisely lap-jointed at 45°with a 7-stepping seam to reduce no-load current and noise.

Protection: The surface is coated with a special moisture-proof and rust-proof coating, providing effective anti-oxidation and anti-corrosion protection while further reducing acoustic noise.