ADE7880 problems with THD readings on utility

Hi,

We have set-up the ADE7880 through I2C and everything is functioning correctly when connected to 3-phase calibrator.

However when we connect the ADE7880 to the utility the THDv value rises and falls from 1% to 8% and 8% to 1%, respectively.

We have verified that the utility do not go over 3%. (verified with other power meters).

Something is very weird!

Why when connected to calibrator it gives correct values but not when connected to Utiltity (power provider).

Thanks

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    •  Analog Employees 
    on Aug 2, 2018 4:50 PM
    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
    EZ Admin
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  • 0
    •  Analog Employees 
    on Aug 2, 2018 4:50 PM
    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
    EZ Admin
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