Caption: High-efficiency 40 MVA conservator-type substation transformer for voltage step-down in a US regional transmission network.
Technical Specifications
Equipment: 40 MVA, Three-Phase, Oil-Immersed, Conservator-Type Transformer
Core Specs: Primary: 44 kV (Wye-Grounded), Secondary: 34.5 kV (Wye-Grounded). ONAN Cooling, Mineral Oil. Sky Grey ANSI 70 finish.
Key Features
Grid Interconnection: Designed for reliable interconnection between 44kV and 34.5kV distribution networks, supporting regional load transfer and voltage stability.
High Efficiency & Low Loss: Engineered with advanced core steel to exceed DOE 2016 efficiency standards, minimizing no-load and load losses for reduced operational cost.
Conservator System: Equipped with a sealed nitrogen blanket conservator (Type "D") to minimize oil degradation and extend service life, suitable for diverse North American climates.
Safety & Compliance:** Full suite of protective devices (Buchholz relay, pressure relief, winding temperature indicators) and seismic design per applicable zone requirements.
Project Outcome
Enhances grid capacity and operational flexibility for the utility, supporting integration of distributed energy resources.
Provides a reliable, long-life asset with optimized total cost of ownership.
Compliance & Certification
Compliant with IEEE C57.12.00, IEEE C57.12.90, and applicable DOE 2016 efficiency regulations.
Client Value
Delivers a robust, efficient, and grid-ready transformer solution that meets stringent US utility standards for performance, safety, and long-term reliability in modern power networks.
