PM8240 Ground Monitoring

[ju123]

The PM8240 can monitor / show Ground impedance, ground overcurrent and ground failure?

[Mehran_Mehrnia · Accepted solution]

Hi @ju123 

As stated in the this FAQ, PM8000 has an output register called 'I5' in the Power Meter module which measures earth leakage current. It calculates the instantaneous residual current from I1, I2, I3, and I4 when CT is installed on each line, I1, I2, and I3 (and I4 for 4-WYE).

As I5 (earth leakage) is handled as an actual current channel, you can also monitor its value using other modules such as Setpoint to activate an overcurrent alarm when it surpasses a specified threshold.

Meter cannot monitor ground impedance.

Best Regards,

-Mehran
L3 Expert Tech Support Specialist

[ju123]

Thank you so much, Mehran!

[Mehran_Mehrnia]

@ju123 
You're welcome!