2000 KVA General Electric Pad Mounted Transformer-13.2/0.48 KV | USA 2025

Uninterrupted Power, Uncompromised Safety. The Pad-Mounted Transformer Difference.

01 General

1.1 Project Description

2000 kVA three phase pad mounted transformer was delivered to USA in 2025. The rated power of the transformer is 2000 kVA with KNAN cooling. The high voltage is 13.2GrdY/7.621 kV with ±2*2.5% tapping range (NLTC), the low voltage is 0.48Y/0.277 kV, they formed a vector group of YNyn0.

Designed for seamless integration into underground electrical distribution systems, the pad mounted transformer is a high-performance solution that excels in voltage stepping-down and power supply stability. Adhering to DOE energy conservation standards , this transformer is optimized for minimal no-load and on-load losses, delivering superior energy efficiency that translates to substantial cost savings over its service life. At the core of its reliable operation is the FR3 natural ester insulation oil, which provides excellent thermal conductivity and moisture management capabilities, enabling the transformer to handle 20% higher loads compared to mineral oil-filled units while maintaining lower operating temperatures. To ensure uninterrupted performance, the transformer is equipped with a high-performance arrester that diverts surge currents and protects internal components from voltage spikes. The integrated static shield enhances dielectric strength, preventing insulation breakdown and ensuring stable power transmission. For ease of monitoring and maintenance, a dedicated gauge box is mounted on the side, allowing quick access to operational data. The powder-coated white (RAL 9003) exterior ensures durability against harsh weather conditions, including extreme temperatures and humidity.

Whether serving data centers, shopping centers, or industrial plants, this pad mounted transformer delivers consistent, efficient, and reliable power distribution.

1.2 Technical Specification

2000 kVA pad mounted transformer specifications type and data sheet

1.3 Drawings

2000 kVA pad mounted transformer diagram drawing and size.

02 Manufacturing

2.1 HV Bushing

The HV bushing for pad mounted transformers, exemplified by Chardon’s 15-LBI200 model, is a 15kV Class, 200A loadbreak bushing insert that threads onto a standard 200A bushing well. It features an all-copper current path, peroxide-cured EPDM insulation, and a conducting shield, meeting IEEE Standard 386 for full interchangeability and reliable performance. Designed for field replaceability without taking the transformer out of service, it enables shielded, submersible loadbreak connections, supports switching and fault close operations, and allows tool-free or torque tool-assisted installation via an internal hex broach.

2.2 LV Bushing

The LV bushing for pad mounted transformers, represented by model BFG-1/2500, is a resin dry-type bushing complying with GB/T4109 and IEC60137. It features 10kV AC dry withstand voltage, 30kV lightning impulse voltage, partial discharge ≤10pC at 1.2kV, short-time thermal current of 62.5kA/2s, and a creepage distance ≥35mm. Designed for horizontal installation, it has a tin-plated conductive surface, withstands a cantilever load of 200N, operates in -35°C to +40°C environments, comes with a 90×70×6 rectangular sealing ring, and fits the specified cabinet opening dimensions.

2.3 Bay-O-Net Fuse

Bay-O-Net fuse for pad mounted transformers is available in 23kV (sidewall/cover-mounted) and 38kV (sidewall-mounted) ratings, designed for use with transformers filled with Envirotemp FR3 fluid, transformer oil or approved equivalents. Featuring hotstick operability, deadfront construction for safety, and optional sidewall-mounted Flapper valve to minimize oil spillage, it has copper or silver-plated terminals (silver-plated standard for 38kV) for reliable connections, supports loadbreak operations, and allows easy fuse inspection/replacement without special tools. It must be used in series with an isolation link or current-limiting fuse to prevent high-current faults, ensuring protection for transformers and distribution systems.

2.4 Pressure Release Valve

Pressure release valve is designed to protect the transformer tank from excessive internal pressure. It automatically opens instantly to release gas when the tank pressure reaches the standard 10 psi release pressure (customizable) and closes once pressure drops to a safe level, with a manual pressure relief option via pulling its hoop. Featuring a standard 1/4-18NPT mounting screw (customizable), it operates in environments with 0~80℃ temperature and <95% humidity, requires sealant for sealed installation, should be kept away from high-traffic areas to avoid harm from high-temperature released gas, and is not suitable for corrosion-prone sites damaging rubber and copper.

2.5 Transformer Thermometer

The BWS-70 Transformer Thermometer for pad mounted transformers is designed to indicate the oil temperature in the transformer tank, featuring high sensitivity, clear reading, simple structure and high reliability. Its case is made of stainless steel, ensuring an attractive appearance and long service life. For accurate temperature indication, the thermometer bulb must be inserted more than 100mm deep into the medium; it should be protected from collision, bending and deformation during transportation and use, the gauge shell shall not be used as a spanner during installation, and an annual check is required during operation.

03 Testing

The routine tests for the 2000kVA three-phase self-cooled liquid-immersed pad mounted transformer (model: 0.48Y/0.277-13.2GrdY/7.6kV) adhere to IEEE standards (e.g., C57.12.00-2021, C57.12.34-2022, C57.12.90-2021), covering key items such as winding resistance, voltage ratio, phase-relation, no-load losses/current, load losses/impedance voltage/efficiency, applied voltage, induced voltage withstand, insulation resistance, and pressure leak test. All tests passed with qualified results, meeting acceptance criteria without issues like voltage collapse or leakage.

04 Packing and Shipping

05 Site And Summary

At SCOTECH, our pad mounted transformers are engineered to redefine reliability, efficiency, and safety for distributed energy systems-from solar farms and energy storage facilities to commercial grids and residential neighborhoods. Built with rugged, weather-resistant designs and precision-engineered components, they deliver consistent performance even in the harshest outdoor environments, minimizing downtime and lowering long-term operational costs.

We understand that every project has unique power needs. That’s why our pad mounted transformers are customizable to meet specific voltage, capacity, and integration requirements, ensuring seamless compatibility with your existing infrastructure. Backed by SCOTECH’s decades of expertise in transformer manufacturing, strict quality control, and responsive global support, you can trust our products to power your operations with uncompromising stability. Partner with SCOTECH for pad mounted transformers that don’t just meet industry standards-they set them. Let’s build a more efficient, sustainable energy future together.