- Reduce Load to 300MW
- Slowly close flue gas outlet damper (2 in no. )for APH which has to be stopped
- Adjust other PAPH/SAPH flue gas outlet damper
- Close flue gas inlet damper
- Close SCAPH inlet , outlet & bypass damper. During Closing , Observe Air Flow.
- Close SAPH air outlet damper (2 in no.)
- Stop the SAPH motor once flue gas inlet temperature reduced below 150deg C
- Close Air motor main isolating valve & bypass isolating valve
Wednesday, January 1, 2020
Stopping one SAPH
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