We use faultcurrent information to help determine fault location in a circuit.
In our mapping program the fault current information is overlayed and this can be very helpful when patrolling line for permanent or temporary faults.
My concern is this has never been 100% because the faults vary constantly from bolted faults to a high impedance flash.
The OCPDs we use will have event logs and do provide fault information.
If a circuit has a large motor load and the fault is on the load side of the OCPD, does the fault information recorded by the OCPD change with the motors online at the time of the fault?
I see the motors contributing to the fault but those amps do not pass throughthe OCPD from the source and would not impact the logged fault current we usefor fault location in our software.
Haven't gotten the pic to attach correctly.
In our mapping program the fault current information is overlayed and this can be very helpful when patrolling line for permanent or temporary faults.
My concern is this has never been 100% because the faults vary constantly from bolted faults to a high impedance flash.
The OCPDs we use will have event logs and do provide fault information.
If a circuit has a large motor load and the fault is on the load side of the OCPD, does the fault information recorded by the OCPD change with the motors online at the time of the fault?
I see the motors contributing to the fault but those amps do not pass throughthe OCPD from the source and would not impact the logged fault current we usefor fault location in our software.
Haven't gotten the pic to attach correctly.
Attachments
Last edited: