Excitation alarm rotor current limit high

A

Thread Starter

ashiq

Dear Friends

i appreciate if someone want share his experience regarding the problem which is the rotor limit high alarm initiated from Gas Turbine excitation system that caused our gas turbine v 94.2 trip. after this alarm load transducers fault also occurred due to load values went beyond the limit on both channels. i assume the culprit may be excitation system itself or transmission system but system frequency remain with in limits. in our logic excitation system would be emergency off after 7 seconds delay when rotor limit alarm appears. but in our case after one second load transducer fault initiated tripping and excitation system did not went emergency off.

thanks in advance

regards
ashiq
 
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