Large pump station speed pump trip how to deal with?
June 21 09:10:20, 2025
When dealing with a large pump station's speed pump tripping issue, the following emergency procedures should be followed by different roles:
**A) Shift Officer Emergency Steps:**
1. Upon noticing an alarm, immediately contact the control room operator to confirm the alarm details and level from the host computer.
2. Assess the current water level and alarms to make informed decisions about the situation.
3. Direct the control room operator to activate the backup pump to maintain operations.
4. If no spare pump is available, instruct the pump operator to switch the tripped unit’s control mode to manual and start it using the engine side, ensuring the main unit is functioning correctly.
5. Contact both the control room operator and the central dispatch to coordinate water levels, ensuring proper sewage management.
6. Inspect the equipment with the pump operator to identify the root cause of the fault and resolve it within your responsibility.
7. If unable to fix the issue, report to higher authorities, follow their guidance, and document the incident thoroughly.
8. Provide a detailed handover report to the incoming shift to keep them informed about the equipment status.
**B) Control Room Operator Emergency Steps:**
1. Upon detecting a sudden trip, adjust the water level immediately and activate standby pumps while contacting central dispatch to coordinate water levels and maintain normal operations.
2. Notify the team about rising water levels and record all alarm displays.
3. Document the exact time, status, and symptoms of the failure.
4. Report the fault details to superiors and await instructions.
5. Once the standby pump is operational and the water level stabilizes, report back to the central dispatch and superiors about the fault resolution.
6. Hand over a comprehensive summary to the next shift to ensure continuity.
**C) Pump Station Attendant Emergency Steps:**
1. Under the squad leader's direction, prepare to manually start the tripped pump. For speed-set units, switch the control mode to manual, activate the cooling fan, and open the necessary valves before starting the pump. For siphon units, follow similar steps but also open the vacuum exhaust valve.
2. Work alongside the squad leader to diagnose the cause of the tripped unit.
3. If the cooling water flow signal is interrupted, manually restore it.
4. Reset the vibration transducer if the vibration value caused the trip.
5. Power cycle the PLC in case of a fault.
6. Investigate hydraulic station issues and address them accordingly.
7. Restart the vacuum system if alarmed.
8. Check and repair compressed air lines if there's no pressure in the rupture valve.
9. Activate backup air compressors and manually adjust related valves.
10. Record all findings, actions taken, and outcomes.
11. Provide a thorough handover to the next shift to ensure they are aware of the current equipment status.
Each step is critical to maintaining operational integrity and ensuring smooth sewage delivery.
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