Power

Maximum isolation for Battery Management Systems

10th April 2024
Sheryl Miles
0

Würth Elektronik expands its WE-BMS transformer series for battery management systems with versions for an operating voltage of 1,500 VDC.

Würth Elektronik expands its WE-BMS transformer series for battery management systems with versions for an operating voltage of 1,500 VDC.

The component design features enhanced isolation in line with IEC 62368-1 with triple-insulated wire (primary and secondary side), as well as galvanic isolation and a test voltage of 6,400 VDC.

All this makes the new models in the series ideal for use in large stationary energy storage systems from solar and wind farms, in intermediate storage systems in high-power charging stations to balance out peak loads, or for uninterruptible power supplies used in critical infrastructures. Battery management systems ensure safe operation of battery packs and provide information on battery and charge status. The downstream BMS controllers are connected in series, as are the battery cells. As voltage differences and electromagnetic interference can arise between the components connected in series, a BMS transformer helps isolate the components from each other and suppress interference.

The latest members of Würth Elektronik's BMS transformer series guarantee this, even in systems with a high operating voltage of up to 1,500VDC. The longevity of the enhanced isolation of the modules as defined in IEC 62368-1 was tested using the partial discharge test in accordance with IEC 60664-1. The transformers for battery management systems are now available from stock without a minimum order quantity.

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