Hi Everybody,

9FA DLN 2.6+ Mark Vie During Base load on Liquid fuel "BACKUP EXHAUST TEMP CONTROL REF SELECTED" Alarm appeared and was persisting till the GT was taken in to External load.

FSRT - Base load - 265 MW
Ambient temp 25 to 27 Dec
Compressor ration 16.5
Alarm level 2 - L60TRF_ALM

Can anybody explain why this alarm appeared only on Liquid fuel and not while machine was taken on Gas fuel - Base load (250MW)

Thanks.

 

JP,

When TTRXS is less than TTRXP that alarm will be annunciated.