Reverberating noise from inverter

Dcline Registered Users Posts: 25 ✭✭
Why do I get a load reverberating noise and a spike in the reading on the inverter when load is decrease by something turning off. 

Please advise


  • mcgivor
    mcgivor Solar Expert Posts: 3,854 ✭✭✭✭✭✭
    Just speculating here, the reverberation is likely related to the output frequency, the higher the loads the more pronounced, a spike, in voltage? , when the load is disconnected, would likely occur due to reaction time the inverter takes to adjust to a no, or low load condition.

    More details would be helpful.

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    Second system 1890W  3 × 300W No name brand poly, 3×330 Sunsolar Poly panels, Morningstar TS 60 PWM controller, no name 2000W inverter 400Ah LFP 24V nominal battery with Daly BMS, used for water pumping and day time air conditioning.  
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  • Dcline
    Dcline Registered Users Posts: 25 ✭✭
    Yes, there is a spike in voltage when this takes place and it is louder at times.