{"id":8717,"date":"2024-07-15T12:21:08","date_gmt":"2024-07-15T10:21:08","guid":{"rendered":"https:\/\/www.neo-messtechnik.com\/?p=8717"},"modified":"2025-10-07T10:38:45","modified_gmt":"2025-10-07T08:38:45","slug":"unbalance-of-single-phase-charging-stations","status":"publish","type":"post","link":"https:\/\/www.neo-messtechnik.com\/en\/unbalance-of-single-phase-charging-stations","title":{"rendered":"Unbalance of single-phase charging stations"},"content":{"rendered":"\n

If an electric vehicle is charged at home some chargers operate in single phase mode.
Some charging stations allow single-phase charging above the single-phase unbalanced load current limit.
According to TOR <\/a>the single phase current is limited with 16A in Austria and 20A (VDE-standard) in Germany.<\/p>\n\n\n\n

Different voltage levels on the three phases and a shifted neutral point, as well as high neutral currents can occur. Unbalance will increase heating of electrical equipment and shorten their life-time.<\/p>\n\n\n\n

Especially single-phase chargers can have a huge impact, while three-phase chargers can also have an effect as they are not perfectly balanced or sometimes only use two-phases for specific charging states. Sometimes one phase is generally not activated for the whole charging process, other charging strategies use the three phases at different times which again leads to temporary unbalanced systems.<\/p>\n\n\n\n

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Table of Contents<\/p>\n