Patent ID: 9240682
Filing Date: 2016-01-19
CPC Classification: H01L,H02H,H02J,H02M,H02S,Y02E

Claim Text:
1. A system comprising: a first photovoltaic inverter that converts direct current (DC) generated by solar cells to alternating current (AC) that is provided at an AC output of the first photovoltaic inverter; a step up transformer having a first low voltage winding on a low voltage side and a high voltage winding on a high voltage side, the low voltage winding being coupled to the photovoltaic inverter, and the high voltage winding being coupled to a utility grid; a first switch-fuse link comprising a first fuse and a first switch, the first switch-fuse link coupling the AC output of the first photovoltaic inverter to the first low voltage winding of the step up transformer through a contact of the first switch during a normal operation mode, the first switch-fuse link coupling the AC output of the first photovoltaic inverter to the first low voltage winding of the step up transformer through the first fuse during a maintenance mode; a second photovoltaic inverter that converts DC generated by solar cells to AC that is provided at an AC output of the second photovoltaic inverter; and a second switch-fuse link comprising a second fuse and a second switch, the second switch-fuse link coupling the AC output of the second photovoltaic inverter to a second low voltage winding of the step up transformer through a contact of the second switch during the normal operation mode, the second switch-fuse link coupling the AC output of the second photovoltaic inverter to the second low voltage winding of the step up transformer through the second fuse during the maintenance mode.