Fault Analysis and Precautions for Digital Relay Protection Tester



   Fault Analysis and Troubleshooting

  























Fault Phenomenon



Cause Analysis



Troubleshooting Method



Remarks



No display on power-on



1)Power not connected



Connect the power supply



Replace the fuse; should


Replace with the same type of fuse



2)The instrument5Afuse is not installed properly or is open



Reinstall or replace the fuse