Double Split Epoxy Resin Cast Dry-Type Transformer Product Introduction

1. Product Overview

The double split epoxy resin cast dry-type transformer is a customized and high-reliability power distribution equipment optimized for multi-load independent power supply and harmonic suppression scenarios. Different from conventional dry-type transformers, this product adopts a unique dual-independent secondary winding structure on a unified iron core, which can output two isolated power circuits simultaneously without mutual electrical interference. Adopting full vacuum epoxy resin casting molding technology, the winding integral curing structure eliminates internal gaps and air bubbles fundamentally, avoiding the insulation aging and breakdown problems caused by long-term operation.

This transformer abandons the traditional oil-immersed heat dissipation and insulation mode, realizing full dry operation with no oil leakage, no pollution and no explosion risk. It is specially designed for industrial rectification, new energy power supply, data center dual-circuit power supply and other high-standard power occasions. With excellent electrical stability, mechanical strength and environmental adaptability, it can effectively solve the problems of load mutual interference and unbalanced power supply in complex power systems, and greatly improve the safety and continuity of system operation.

2. Core Product Parameters

The following are the standard mainstream technical parameters of the double split epoxy resin cast dry-type transformer, which can be flexibly customized according to user site working conditions, voltage levels and load requirements:

3. Product Core Features

3.1 Dual Split Isolated Power Supply, Strong Anti-interference Ability

The core advantage of the product lies in the dual independent secondary split winding design. The two output circuits are completely electrically isolated, which can effectively isolate harmonic interference and voltage fluctuation between different loads. In multi-pulse rectifier and inverter matching systems, it avoids cross-interference between equipment, ensures independent and stable operation of each load circuit, and greatly improves the overall power quality of the system. In case of failure of a single circuit, the other circuit can operate normally without shutdown, realizing redundant power supply and improving system safety.

3.2 Superior Insulation and Flame Retardant Performance

The windings are integrally cast with high-purity epoxy resin in a vacuum environment, matched with high-strength glass fiber reinforcement materials. The overall structure is compact and seamless, with excellent insulation performance and ultra-low partial discharge. The epoxy resin material has natural self-extinguishing and non-flammable characteristics, no open flame combustion during failure, no explosion risk, and no harmful gas emission. It fully meets high-standard fire protection requirements and is far safer than traditional oil-immersed transformers.

3.3 Excellent Environmental Adaptability and Durability

The integral casting structure can effectively resist moisture, dust, corrosion and mechanical impact. It can operate stably in high humidity, dusty and coastal salt-fog environments for a long time without insulation aging and performance attenuation. The whole machine has no vulnerable oil circuit and sealing parts, with strong thermal stability and anti-short-circuit ability. The service life can reach more than 30 years under normal operating conditions, which significantly reduces equipment replacement and maintenance costs.

3.4 Compact Structure and Convenient Installation

Compared with traditional split power supply schemes that require two separate transformers, this integrated double split design saves nearly 40% of installation space, with light weight and flexible layout. It can be directly installed in load centers, indoor power distribution rooms and other compact spaces without special foundation and oil storage facilities. The standardized interface design simplifies on-site wiring and installation procedures, shortening the project construction cycle.

3.5 Low Loss and Energy Saving

Adopting high-quality cold-rolled silicon steel sheets and high-purity copper windings, the transformer has extremely low no-load loss and load loss. The optimized magnetic circuit and winding structure design reduces operating noise effectively, with the full-load operating noise lower than 55dB. Long-term operation can effectively reduce power consumption and operating noise pollution, meeting energy-saving and environmental protection standards of various industries.

4. Main Application Scenarios

Relying on its dual-circuit isolation power supply and high safety performance, this transformer is widely used in high-reliability and high-safety power supply scenarios that require independent power supply and harmonic suppression:

• New Energy Power Station: Suitable for wind power, photovoltaic power generation and energy storage power stations, supporting multi-channel inverter parallel operation, isolating mutual interference between power generation units and stabilizing grid output.

• Industrial Heavy Industry Manufacturing: Applied to electrolysis, electroplating, CNC precision processing, robotic welding production lines and multi-pulse rectifier systems, ensuring stable power supply for precision equipment and avoiding equipment damage caused by voltage fluctuation.

• Data Center and Communication Hub: Provide dual-circuit redundant power supply for server rooms and communication equipment, ensure uninterrupted power supply of core equipment, and improve the fault tolerance of power supply system.

• Petrochemical and Mining Industry: Adapt to flammable, dusty and harsh industrial environments, meet explosion-proof and fire-proof safety standards, and provide stable power supply for mining equipment and chemical production systems.

• Medical and High-end Commercial Buildings: Used for hospital operating rooms, medical equipment rooms and high-rise commercial buildings, with low noise, pollution-free and high safety features, meeting indoor power supply and environmental protection requirements.

• Rail Transit and DC Traction System: Support DC traction power supply, isolate circuit interference, and ensure stable operation of rail transit power supply system.

5. Product Maintenance & After-sales Service

5.1 Daily Maintenance Guidelines

This series of transformers is designed with low maintenance characteristics, no regular oil replacement and sealing maintenance required. Daily maintenance is simple and operable for on-site personnel:

• Regularly clean the surface dust and sundries of the transformer every 3–6 months to ensure smooth heat dissipation of the winding surface and avoid heat accumulation caused by dust accumulation.

• Check the tightness of wiring terminals regularly to prevent poor contact and heating failure caused by loose screws due to long-term vibration.

• Observe the operating temperature and noise of the equipment daily. If there is abnormal temperature rise, sharp noise or partial discharge alarm, stop operation in time for inspection.

• For equipment operating in high humidity and salt-fog environments, conduct regular insulation resistance testing