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0 pointsphiresky1y ago0 comments

It's a male end on the PV side, but every of these plug-in inverters I've seen only start outputting when they get the 220V 50Hz input, so they are inert as long as they are not plugged in. As far as I know they always rely on the grid frequency.

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jeeeb1y ago

This is necessary to prevent islanding.

If the inverter outputs when the grid has lost frequency then other inverters can respond by also starting to output. This creates a chain reaction and can generate serious currents in sections of the grid that are expected to be on outage, which is a safety hazard.

j / k navigate · click thread line to collapse

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jeeeb1y ago

This is necessary to prevent islanding.

j / k navigate · click thread line to collapse