How to Connect a Wind Generator to a Fuse Panel
- 1). Check the wind generator nameplate data. The generator may be producing DC or three-phase AC. A grid-connect inverter of the correct type will be required to change the electricity produced by the wind generator to 120V or 240V AC and synchronize it with the grid connected to the fuse panel.
Note the generator full load amps for use in selecting the connecting cable. Measure the distance from the generator to the fuse panel. - 2). Install the grid-connect inverter near the fuse panel. Select cable according to AWG cable tables for the rated generator current and distance. Run the cable from the wind generator to the grid-connect inverter and connect.
- 3). Install the automatic disconnect switch near the fuse panel. Connect the output from the inverter to the disconnect switch and connect the switch to the fuse panel. Make sure the fuse in the generator branch circuit is properly sized for the rated output current of the inverter.
The automatic disconnect switch must open when there is a power failure to prevent power from the generator from entering the blacked-out grid and endangering repair workers. - 4). Install additional metering if required. Some utilities will allow power to feed back through the main power meter, slowing it down or running it in reverse. The power user pays the difference between power used and power generated, assuming the former will always be greater. Some utilities will require additional instrumentation to meter the power put back into the grid and will pay for this power separately, often at a different rate than that applied to power used.
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