question

craigh-1 avatar image
craigh-1 asked

Power for smart shunt as wind turbine energy meter?

I've got a 300W wind turbine set up running into resistor heaters only, no battery at this point. I'm trying to characterize the power before wiring into my batteries.

I have the smart shunt set up as an energy meter with the power input run off the turbine. This works and inputs to vrm. When the wind dies, the meter shuts down though. Is this hard on the shunt? I do have a battery nearby (solar+cerbo) but not currently wired to the wind turbine. Can I tie the grounds and then power the shunt off the battery (through the aux input perhaps)?

Thanks

SmartShunt
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1 Answer
kevgermany avatar image
kevgermany answered ·

The shunt uses the negative for current, the positive for voltage and powers itself from both. Adding a battery will not work as the voltage reference it uses for power calcs will be wrong.

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