Transformer modules with reinforced insulation ideal for energy storage applications

The new HXE20xxHL series from the Pulse Electronics division of YAGEO are surface-mount, reinforced-insulation transformer modules. 

The transformer modules provide safety isolation and protection on communication links which control and monitor renewable energy storage systems exposed to hazardous high working voltages. The new modules feature a 1:1 tapped transformer and integral choke which give excellent signal conditioning and EMI performance. 

The transformers’ reinforced insulation complies with the requirements of the EC/EN/UL 62368-1 standard at four working voltages: 500 V, 800 V, 1,000 V, and 1,500 V dc. The HXE20xxHL modules also provide three levels of input-output isolation:

• 4,300 V dc
• 5,000 V dc
• 6,000 V dc 

Insulation resistance is 400 MΩ over the operating-temperature range of -40°C to 125°C. 

The high isolation and insulation ratings make these transformer modules ideal for use in demanding outdoor applications for battery stacks which provide energy storage or a back-up energy supply in remote or residential locations. 

The surface-mount modules have a compact footprint, but provide high creepage distance of more than 15 mm. The modules are matched to popular chipsets that perform cell monitoring and control, and battery monitoring control. This means that the HXE20xxHL can be used to isolate the daisy-chain communication links between battery monitoring controllers and cell monitoring controllers. 

As well as supporting energy storage applications, these transformers can also be used in marine and aviation applications in which communication links for battery management need digital separation from the high-voltage battery stacks and circuits.