Scope
This document applies to 3-phase liquid-immersed and dry-type power transformers in the scope of IEC 60076-1 and IEC 60076-11 for one or a combination of the following applications: Photovoltaic power generation • Battery-storage applications • electric vehicle supply application • hydrogen generation applications. It applies where transformers are used to connect the converter or multiple converters of the corresponding application to the AC power system.
Excluded are:
• Collector transformers used to connect several applications to a distribution or transmission network.
• Typical distribution transformers supplying the LV distribution grid, even though generated power – for instance by photovoltaic panels installed on private house roofs or balconies – can be directly connected via converters to this grid with the power flowing through such transformers.
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