MFLK1 is not connected to the system voltage: Calibrating the MFLK1 and locating the fault

MFLK1 set as Locating Signal : OFF. MFLK1 must be calibrated as closely as possible from the injection terminal of the IM400 or XGR.

NOTICE
Equipment damage Ensure that CT probe cable is connected to the CT connector. Ensure that voltage input cable is connected to the voltage input connector. Failure to follow these instructions can result in equipment damage.

Connect the CT probe to its specific cable and quarter turn the CT probe connector.

Clamp the CT probe as closely as possible to the injection terminal of the IM400 or XGR.
Press the Calibration button.
The Launch Calibration? message displays.
Press the Confirm button.
The calibration begins and then displays the percentage of current, which is the reference for all other measurements downstream.
NOTE: Fault will be located by checking the relative current flow in percentage.
Clamp the CT probe to the first level of feeders.
- If the percentage of the current is very low compared to others, then there is no fault in this feeder, continue to check the next downstream feeders.
- If the percentage of the current is high low compared to others, then there is fault in this feeder, should be disconnected and repaired.