E-mon D-mon (TM)

[MBLES]

I have a 1600a service that has a single 3phase space available that we will use for a 100a circuit. We dont have a space for emon dmon
to be installed in same panel but there is a 200a subpanel from the 1600a DP in same location. Do you guys see a problem using a circuit to feed the emon dmon from the 200a panel to monitor the 100a circuit on 1600a DP?

 

[texie]

I have a 1600a service that has a single 3phase space available that we will use for a 100a circuit. We dont have a space for emon dmon
to be installed in same panel but there is a 200a subpanel from the 1600a DP in same location. Do you guys see a problem using a circuit to feed the emon dmon from the 200a panel to monitor the 100a circuit on 1600a DP?

Maybe not the most elegant way, but off the top of my head, I don't see any code issue. Just be certain that that "A" phase is actually "A" phase, etc in each panel so your sure your readings are correct.

 

[GoldDigger]

I have a 1600a service that has a single 3phase space available that we will use for a 100a circuit. We dont have a space for emon dmon
to be installed in same panel but there is a 200a subpanel from the 1600a DP in same location. Do you guys see a problem using a circuit to feed the emon dmon from the 200a panel to monitor the 100a circuit on 1600a DP?

Emon notes: " Note: Phase correspondence is required, and all loads must be from the same voltage source/transformer."

Since the main panel and the sub-panel will have the same source voltage available for the voltage sensing inputs of the D-mon, it will work, but...
You have to recognize that if for any reason the subpanel power goes off the D-mon will stop metering, even though it is still reading current through the circuit that it is monitoring.
Also note that you will have to provide at least three and as many as six wires between the D-mon and the remote current transformers, depending on how it is wired up.

 

[MBLES]

Emon notes: " Note: Phase correspondence is required, and all loads must be from the same voltage source/transformer."

Since the main panel and the sub-panel will have the same source voltage available for the voltage sensing inputs of the D-mon, it will work, but...
You have to recognize that if for any reason the subpanel power goes off the D-mon will stop metering, even though it is still reading current through the circuit that it is monitoring.
Also note that you will have to provide at least three and as many as six wires between the D-mon and the remote current transformers, depending on how it is wired up.

I understand. The job is a hotel and limited maintenance. We dont really have a choice. We have no other breaker space in MDP and sense we cant double lug like i have seen many do this We want to avoid any issues with inspection.