3 MVA Dry Type Transformers-13.8/0.48 kV | Jamaica 2025

Resin casting resilience, safeguarding the electric core, a safe and efficient transformer choice!

01 General

1.1 Project Description

The 2400/3000 kVA dry type transformers  were delivered to Jamaica in 2025, the rated power of the transformer is 2400/3000 kVA. The high voltage of this dry type transformer is 13.8kV, the low voltage is 0.48kV. This high voltage dry type transformer is equipped with a no load tap changer, the tapping range is ±2*2.5% at primary side, the cooling is ONAN/ONAF.

This 2400/3000kVA cast coil dry type transformer is designed for modern power systems, combining high performance, safety, and intelligent control features. It utilizes a fan-assisted cooling design and comes equipped with flexible wheels, ensuring quick deployment and installation while adapting to various application scenarios. The fan operates at a power voltage of 220V, paired with a temperature control power voltage of 125V, delivering reliable performance and improved energy efficiency.

For electrical labeling, the product uses distinctive heat shrink tubing and phase sequence tags with color coding: red for phase A, yellow for phase B, blue for phase C, and black for neutral. This ensures easy visual operation and enhanced system safety during use.

Additionally, the transformer is equipped with a high-performance temperature controller that continuously monitors operating temperatures, providing intelligent protection against overheating and effectively extending the lifespan of the equipment. This feature ensures outstanding stability in high-load and critical operational environments.

Whether for industrial plants, commercial facilities, data centers, or other energy-intensive scenarios, this 2400/3000kVA dry-type transformer offers an efficient, reliable, and user-friendly solution, delivering safer and smarter power management.

1.2 Technical Specification

2400/3000 kVA dry type transformers specification and data sheet

1.3 Drawings

2400/3000 kVA resin cast dry type transformers diagram drawing and size.

02 Manufacturing

2.1 Core

The iron core of a resin cast dry type transformers is made of high magnetic permeability cold-rolled grain-oriented silicon steel sheets, processed with laser cutting or precision stamping techniques, and utilizes a laminated structure to minimize eddy current losses. The surface of the core is coated with a special insulating layer to enhance moisture resistance and insulation performance. It features a compact and precise assembly, with non-magnetic materials used for fixation to reduce noise and mechanical stress. The overall design emphasizes high efficiency, low loss, and good heat dissipation, making it a critical component for the stable operation of the transformer.

2.2 Winding

The coil of a resin cast dry type transformers is made of high conductivity aluminum windings, completely sealed with epoxy resin for excellent insulation, heat resistance, and moisture protection, effectively preventing short circuits and partial discharge. The coil features a compact structure with high mechanical strength, and an optimized heat dissipation design ensures temperature control and stable performance. The resin casting process also has environmentally friendly characteristics, reducing vibration and noise, allowing the coil to maintain high reliability and superior operational stability in complex environments.

2.3 Final Assembly

Coil installation: Install the already poured resin coils onto the iron core. According to the requirements of the design drawings, ensure that each coil is correctly aligned and fixed. The insulation layers between the coils and between the coils and the core should be intact to prevent short circuits. Connection terminal: Connect the lead-out end of the coil to the terminal of the transformer. Ensure the connection is stable and carry out necessary insulation treatment to prevent leakage and short circuit. Cooling system installation: Install the fan as per the design requirements to ensure that the transformer can effectively dissipate heat during operation and maintain a normal working temperature.

03 Testing

04 Packing and Shipping

4.1 Packing

The cast coil dry-type transformer is packed in a wooden crate, covered with a moisture-proof aluminum foil bag to protect against dust and humidity during transportation and storage. The robust wooden crate includes internal cushioning to prevent shock and vibration damage.

4.2 Shipping

The transportation of the transformer using container number CSNU7745546 to the destination port of Kingston involves securely fastening the transformer inside the container. After loading, the container will be transported to the port and safely loaded onto the vessel. During the sea transportation, the status of the shipment will be monitored to ensure the container’s safety. Upon arrival in Kingston, the container will be unloaded using lifting equipment, followed by an inspection. Customs clearance will then be completed before transporting the transformer to its final destination. Throughout the process, attention must be paid to transportation safety, and insurance should be purchased for the equipment to mitigate transportation risks.

05 Site And Summary

In conclusion, resin cast dry type transformers represent a significant advancement in transformer technology, offering enhanced safety, reliability, and environmental compatibility. Their unique construction using epoxy resin not only provides excellent insulation and resistance to moisture but also allows for a compact design suitable for various installation environments. With minimal maintenance requirements and higher durability, these transformers are an ideal choice for applications in commercial, industrial, and renewable energy sectors. As industries continue to prioritize efficiency and sustainability, resin cast dry type transformers will undoubtedly play a crucial role in modern electrical distribution systems, contributing to a greener and more reliable energy future.