50kVA 10kV Epoxy Resin Casting Dry Type Power Transformer

Henan GNEE Electric Co., Ltd. is one of the most reliable manufacturers and suppliers of 50kva 10kv epoxy resin casting dry type power transformer in China. If you're going to buy customized 50kva 10kv epoxy resin casting dry type power transformer made in China, welcome to get quotation from our factory. Quality products and reasonable price are available.

 

The Epoxy Resin Casting Dry Type Power Transformer utilizes fully encapsulated epoxy resin casting technology, offering three core advantages:

‌Fire Safety‌: Resin achieves UL94 V-0 flame-retardant certification, ideal for high-safety environments like hospitals and malls.

‌Short-Circuit Resistance‌: Vacuum-cast coils enhance mechanical strength by 30%, withstanding instantaneous current surges.

‌Compact Design‌: 40% smaller than oil-immersed transformers, saving installation space.
This dry-type transformer holds an IP54 protection rating, operates stably between -25°C to +50°C, and emits noise below 55dB, complying with global environmental standards. The Epoxy Resin Casting Transformer features modular design for customizable voltage ratios, adapting to diverse grid requirements worldwide.

The Epoxy Resin Casting Dry Type Power Transformer operates based on the insulating and thermal properties of epoxy resin. High- and low-voltage windings, made of copper conductors, are uniformly encapsulated with epoxy resin via vacuum casting, forming a solid, gap-free insulation structure. Once cured, the resin eliminates moisture and pollutant ingress, granting this dry-type transformer exceptional weather resistance.

During operation, electromagnetic induction generates heat in the windings. The resin's high thermal conductivity (≥1.2W/m·K) rapidly transfers heat to aluminum alloy cooling fins, paired with natural air cooling for efficient temperature control. Unlike oil-immersed transformers, the Epoxy Resin Casting Transformer requires no insulating oil, eliminating leakage risks. Additionally, the resin layer's dielectric strength (40kV/mm) ensures partial discharge levels below 5pC, significantly extending lifespan.

Through optimized electromagnetic design, this dry-type transformer operates continuously at 85% load for 20 years, with loss fluctuations under 2%. Epoxy Resin Casting technology enhances energy efficiency while complying with EU RoHS directives, making it the premier choice for modern urban grid upgrades.

The Epoxy Resin Casting Dry Type Power Transformer is produced using four core technologies:

‌Vacuum Casting‌: Resin is injected under 0.1Pa ultra-low pressure, eliminating bubbles to achieve 99.9% insulation density.

‌Layered Winding‌: High-voltage coils adopt segmented winding with glass fiber reinforcement, boosting tensile strength to 150MPa.

‌Precision Curing‌: Resin undergoes 8-hour stepwise curing at 80°C, forming crack-free, stable structures.

Production strictly follows IEC 60076-11 standards, with coil tolerances controlled within ±0.2mm. The Epoxy Resin Casting Transformer's core uses 30ZH120 high-permeability silicon steel, reducing no-load loss by 18%. Integrated NTC sensors monitor hotspot temperatures, while RS485 interfaces enable smart grid integration.

Each Epoxy Resin Casting Dry Type Power Transformer undergoes a 72-hour aging test to ensure matched thermal expansion coefficients (α≤1.5×10⁻⁵/℃) between resin and conductors, preventing stress cracks during long-term operation.

Every Epoxy Resin Casting Dry Type Power Transformer undergoes three rigorous tests:

‌Electrical Tests‌: Power-frequency withstand voltage (28kV/1min), lightning impulse (75kV), and partial discharge checks (GB 1094.11 compliance).

‌Environmental Simulation‌: 48-hour exposure in a damp-heat chamber (40°C/95% RH) to validate moisture resistance.

‌Mechanical Testing‌: 5J impact resistance verification on epoxy layers, ensuring no cracks or delamination.

All Epoxy Resin Casting Transformers include third-party certifications (CE, SGS) and a lifetime maintenance-free guarantee, with a failure rate below 0.2%.

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GNEE Group:

Global Transformer Supply Chain Integration Expert (2008 - Present)

Founded in 2008, GNEE Group has undergone fifteen years of deep industry cultivation, successfully transforming from a regional trader to a global supply chain management expert. As a pioneer in the integration of the steel industry chain, the group has established a full-cycle value system that spans raw material procurement, production coordination, logistics optimization, and terminal services, setting an innovative operational benchmark in the global transformer distribution sector. In the era of Industry 4.0, GNEE Group is accelerating towards its goal of becoming a global integrator oftransformer industry value through digital restructuring and green supply chain construction.

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