RumRunner
Senior Member
- Location
- SCV Ca, USA
- Occupation
- Retired EE
(Answer to Winnie's comment)
Good suggestion.
But, doesn’t “closed loop hall effect current transducer” require power. . . be it separate or dependent upon the system being monitored?
We can install a non-invasive monitoring system. This will do away with breaking the line and installing shunts, but OP already indicated that he is looking at Texas Instrument AMC 1311.
Non-invasive approach works like a clamp-on transducer. No disconnecting of existing wires. Similar to a current transformer. . . works through induction.
I understand OP’s concern about wading into NEC’s “realm of influence”. If you need to provide power to an instrument (in this case from the MCC) it would certainly involve safety regulation.
Can be manipulated because it is very low voltage (2 volts) and then amplified to a manageable level.
Of course you can feed it power from the PLC.
OP is still conducting feasibility studies. As such, it is in a very early stage of development . . . nothing is existing except the MCC.
So, it is only fitting for an engineer to do research that may impact the project as he goes forward and ultimately, any factor that will affect the finish product.
This is exactly what he is asking for...not how to build this thing. People that would go into tangents are really just name-dropping. . . making it look like they know something.
As the saying goes: Let’s cut to the chase. (as Hollywood directors go)
As others have NOT been kind enough (not you) I think, OP should not be subjected to unfriendly attitude.
We all benefit from questions being raised—not just answers and opinions.
There is no such thing as stupid question. . . only stupid answers.
Good suggestion.
But, doesn’t “closed loop hall effect current transducer” require power. . . be it separate or dependent upon the system being monitored?
We can install a non-invasive monitoring system. This will do away with breaking the line and installing shunts, but OP already indicated that he is looking at Texas Instrument AMC 1311.
Non-invasive approach works like a clamp-on transducer. No disconnecting of existing wires. Similar to a current transformer. . . works through induction.
I understand OP’s concern about wading into NEC’s “realm of influence”. If you need to provide power to an instrument (in this case from the MCC) it would certainly involve safety regulation.
Can be manipulated because it is very low voltage (2 volts) and then amplified to a manageable level.
Of course you can feed it power from the PLC.
OP is still conducting feasibility studies. As such, it is in a very early stage of development . . . nothing is existing except the MCC.
So, it is only fitting for an engineer to do research that may impact the project as he goes forward and ultimately, any factor that will affect the finish product.
This is exactly what he is asking for...not how to build this thing. People that would go into tangents are really just name-dropping. . . making it look like they know something.
As the saying goes: Let’s cut to the chase. (as Hollywood directors go)
As others have NOT been kind enough (not you) I think, OP should not be subjected to unfriendly attitude.
We all benefit from questions being raised—not just answers and opinions.
There is no such thing as stupid question. . . only stupid answers.
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