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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

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Parves,Automation Technician on 13th May 2024, 5:32pm

Need electrical / controlling SLD. MC check. MC is okay.

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Parves,Automation Technician on 14th May 2024, 2:41pm

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.

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Parves,Automation Technician on 15th May 2024, 5:23pm

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.

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Parves,Automation Technician on 16th May 2024, 4:47pm

16.05.2024
Today 20 feet long & 3.5 feet depth ground is dug.
40M 3*6 mm2 cable pass under chamber & ground.

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Md. Khairul Momen,Scada Operation Engineer on 19th May 2024, 8:59am

New cable arrangement & cable connection done. Now this pump is operational.