793(Solved): Irp-2 slg.Drying bed pump 'A' auto/locally not running.need to check
Posted on 11th May 2024, 1:20pm by [email protected]
2024-05-19 08:59:59am: Status changed to Solved, Because of: work done. -by: Parves
2024-05-19 08:59:59am: Status changed to Solved, Because of: work done. -by: Parves
Need electrical / controlling SLD. MC check. MC is okay.
PROBLEM: WID793: IRP-2 Sludge Drying Bed pump 'A' auto/locally not running.need to check.
Checking list:
• MC check.
• Pump check.
• Control wiring check.
• Power cable wiring check.
• Pump coil resistance check.
• Cable insulation resistance check.
• Power cable input/output valtage check
Problem findings:
• Cable Insulation damage
• Output voltage drops (Blue phase)
• Phase loss / Phase unbalance.
Need to change the power cable.
15.05.2024 Today we check the whole cable from cable tray. Finding faulty part of the cable. Recheck the good & faulty parts of the 100 M cable. 60M cable are found good. Other 40M cable are found insulation resistance fault.
16.05.2024
Today 20 feet long & 3.5 feet depth ground is dug.
40M 3*6 mm2 cable pass under chamber & ground.
New cable arrangement & cable connection done. Now this pump is operational.