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Q&A ADE9000 current sensors

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ADE9000 current sensors

Farouk_

on Feb 2, 2021

Hello,

i have some questions about the ADE9000 current sensors that i need to use.

after reading the datasheet it's only mentioned that the ade9000 only supports CTs and Rogowski coils.

is it possible to use shunts as current sensors.

and do i need any other supplementary components to realize a galvanic isolation.

i know this may sound like dumb questions but i really need an answer.

thanks.

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dave.smith
Feb 2, 2021 +1 verified
If you are measuring 3p power you can't use shunts(see ADE7978 www.analog.com/.../ade7978_7933_7932_7923.pdf). The shunt will be referenced to agnd and this will cause a short between the phases. Without…

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+1 dave.smith

on Feb 2, 2021 5:05 PM
If you are measuring 3p power you can't use shunts(see ADE7978 www.analog.com/.../ade7978_7933_7932_7923.pdf). The shunt will be referenced to agnd and this will cause a short between the phases. Without the agnd reference the common mode at the adc inputs will be the line voltage and the part will be damaged. If you are using the ADE9000 for single phase measurement (see ade7816 for reference www.analog.com/.../ADE7816.pdf) with 3 branches shunts can be used all the shunts would reference the same phase.

Dave
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+1 dave.smith

on Feb 2, 2021 5:05 PM
If you are measuring 3p power you can't use shunts(see ADE7978 www.analog.com/.../ade7978_7933_7932_7923.pdf). The shunt will be referenced to agnd and this will cause a short between the phases. Without the agnd reference the common mode at the adc inputs will be the line voltage and the part will be damaged. If you are using the ADE9000 for single phase measurement (see ade7816 for reference www.analog.com/.../ADE7816.pdf) with 3 branches shunts can be used all the shunts would reference the same phase.

Dave
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