ISOLATION TRANSFORMERS FOR BATTERY ENERGY STORAGE SYSTEMS

Transformer Reactance
28 November 2023
ISOLATION TRANSFORMERS FOR BATTERY ENERGY STORAGE SYSTEMS

SOME REQUIREMENTS OF BESS STORAGE SYSTEMS

A long-standing customer of ours produces complete BESS (Battery Energy Storage System) systems, which include inverters, batteries, and distribution cabinets. These systems make it possible to store energy from renewable sources (wind and photovoltaics) and make it available when needed.

Between these energy storage systems and the main grid, galvanic separation of the two circuits is appropriate to protect the inverter and batteries from any overvoltage and/or overcurrent generated in the grid. It is also necessary to transform the voltage supplied by the renewables (400V) into the operating voltage of the BESS system (typically 690V-480V).

MULTIPLE BENEFITS WITH ORTEA ISOLATION TRANSFORMERS

The solution is to introduce an isolation transformer into the electrical design, which performs both functions.

In the field of energy storage systems, powers are growing more and more, our customer in fact offers solutions on the market with a power greater than 1.5MVA and needs to carry out testing on systems of this size.

For this reason, it commissioned Ortea to design and develop a 1.7MVA isolation transformer with the appropriate functional characteristics for the required specifications.

The huge size of this transformer is one of the largest manufactured by Ortea and underlines the design experience and manufacturing versatility as strengths to meet the customer’s requirements.

At the same time, the customer’s request was enriched with another 4 Ortea isolation transformers, with power ratings of 1.2MVA and 1.4MVA, to be installed in combination with as many energy storage systems.

Learn more about Ortea isolation transformers