CPC H02J 1/102 (2013.01) [H02H 7/1227 (2013.01); H02J 1/10 (2013.01); H02J 3/38 (2013.01); H02J 3/381 (2013.01); H02J 3/388 (2020.01); H02M 1/36 (2013.01); H04B 3/548 (2013.01); H02J 7/35 (2013.01); H02J 2300/24 (2020.01); H02J 2300/28 (2020.01); Y02E 10/56 (2013.01); Y02E 10/76 (2013.01)] | 22 Claims |
1. A protection device for a photovoltaic system for feeding into a power supply system, the device comprising:
at least one input for connection to a solar panel;
at least one output configured to be connected to an inverter;
a switching element for de-energizing the at least one output based on a signal; and
a monitoring and detection mechanism configured to control the switching element based on the signal comprising a frequency which corresponds to a system frequency in the power supply system.
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