Epoxy Resin Cast Dry-Type Transformer Product Introduction

Epoxy Resin Cast Dry-Type Transformer Product Introduction

1. Product Introduction

Epoxy resin cast dry-type transformer is a mainstream environmental-friendly power distribution equipment widely used in modern power systems. Different from traditional oil-immersed transformers, this product adopts vacuum epoxy resin casting technology to fully encapsulate the transformer windings with high-purity epoxy resin. The whole device operates without insulating oil, completely eliminating hidden dangers such as oil leakage, combustion and explosion. Equipped with high-quality grain-oriented silicon steel core and precision winding process, the transformer features stable electrical performance and strong environmental adaptability. It is manufactured in strict accordance with international IEC standards and national industrial specifications, with insulation class reaching Class F or Class H. With reliable operation, low energy consumption and free of daily oil maintenance, it has become the preferred power transformation equipment for indoor, densely populated and high-standard industrial and commercial scenarios.

2. Main Product Parameters

The product supports multi-spec customization to adapt to different voltage levels, load demands and power system standards at home and abroad. The core conventional technical parameters are listed below:

3. Product Core Features

3.1 Excellent Safety Performance

The product adopts oil-free design with no flammable and explosive insulating oil. The epoxy resin material has self-extinguishing and flame-retardant properties, which will not produce toxic gas or open flame combustion in case of high temperature or short circuit fault. It effectively avoids fire and explosion risks caused by oil leakage of traditional transformers, and meets high-standard safety requirements for indoor enclosed spaces.

3.2 Strong Environmental Adaptability

The integrally cast winding structure has good moisture-proof and anti-corrosion performance, and can operate stably for a long time in 100% relative humidity environment without dehumidification treatment. The fully sealed structure can effectively resist dust, condensation and mild chemical corrosion, adapting to humid, dusty and other harsh working conditions that are not suitable for oil-immersed transformers.

3.3 Stable and Efficient Operation

It adopts high-quality low-loss silicon steel core and optimized winding structure, which greatly reduces no-load loss and load loss, with more energy-saving operation. The ultra-low partial discharge design ensures stable insulation performance and avoids insulation aging failure caused by long-term partial discharge. Meanwhile, the overall structural rigidity is high, with strong short-circuit impact resistance, which can withstand instantaneous current impact and ensure continuous and stable power supply.

3.5 Low Noise and Environmental Protection

Through optimized core lamination process and vibration reduction structure design, the operating noise is effectively controlled, far lower than industrial standard values. No oil pollution, no waste oil discharge during operation and scrapping, green and pollution-free, in line with global environmental protection and energy-saving policies.

3.6 Simple Structure and High Customization

The product has a compact overall structure, small floor area and convenient installation. It supports personalized customization of voltage grade, capacity, cooling mode, winding material and appearance size according to actual project demands, which can perfectly match different power distribution system schemes.

4. Application Scenarios

Due to its high safety, environmental protection and high stability, epoxy resin cast dry-type transformers are widely used in key fields with strict power supply safety and environmental requirements, mainly covering the following scenarios:

• Commercial and Civil Buildings: High-rise office buildings, shopping malls, hotels, residential communities, stadiums and other densely populated indoor places, effectively avoiding fire safety hazards in public areas.

• Public Service Facilities: Hospitals, schools, subway stations, airports, data centers and other key facilities requiring continuous and safe power supply, ensuring zero oil pollution and stable power supply.

• Industrial Production Scenarios: Precision manufacturing workshops, electronic factories, pharmaceutical factories, chemical plants and other industrial sites with high environmental and safety standards, adapting to humid and dusty workshop environments.

• New Energy Industry: Photovoltaic power stations, wind power stations, energy storage power stations and other new energy power distribution systems, matching the stable operation demands of new energy grid-connected power distribution.

• Special Engineering Projects: Underground pipe corridors, indoor substations, coastal humid areas and other special engineering scenarios where oil-immersed transformers are prohibited or restricted.

5. Product Maintenance

Compared with oil-immersed transformers, this dry-type transformer has no oil replacement, oil filtering and other routine maintenance work, with extremely low daily maintenance cost. The standardized maintenance scheme is as follows:

5.1 Daily Routine Inspection

Regularly check the transformer operation status every month, including whether the equipment has abnormal noise, overheating, surface dust accumulation and shell damage; check whether the terminal connection parts are loose or oxidized, and ensure good contact of electrical connections. Clean the surface dust of the equipment regularly to avoid excessive dust accumulation affecting heat dissipation.

5.2 Annual Professional Detection

Carry out a comprehensive professional inspection once a year, including insulation resistance test, winding temperature detection, connection torque calibration and partial discharge monitoring. Check the aging degree of insulating parts and fasteners, and timely replace aging accessories to ensure the electrical performance and structural stability of the equipment.

5.3 Fault Prevention Treatment

In humid and rainy seasons, strengthen equipment dehumidification inspection to prevent condensation on the winding surface; avoid long-term overload operation of the equipment to prevent accelerated insulation aging. In case of abnormal operation, stop the machine for inspection in time, and do not operate with faults.

6. After-sales Service Guarantee

We provide full-cycle professional after-sales service for all epoxy resin cast dry-type transformers to ensure the stable and long-term operation of customer equipment:

• Warranty Service: The whole machine enjoys a 2-year free warranty, and the core winding and insulation structure enjoys a 5-year quality guarantee. During the warranty period, any quality problem caused by manufacturing process or material problems will be repaired and replaced free of charge.

• Technical Support: Provide 24/7 online technical consultation service, respond to customer operation consultation and fault feedback in real time, and provide professional solution guidance.

• On-site Service: For equipment faults that cannot be solved remotely, arrange professional engineers to arrive at the site for maintenance and debugging within the fastest time according to the project location.

• Regular Return Visit: Arrange professional after-sales personnel to conduct regular return visits and equipment operation tracking, actively discover potential hidden dangers, and provide targeted maintenance suggestions.

• Lifelong Maintenance: Provide lifelong paid maintenance and spare parts replacement services after the warranty period, with preferential service charges, to ensure the long-term stable operation of the equipment.