Starting Frequency Converter SFC D3.1 Redundancy Upgrade Modification for GT Generators

Wael Attia Ahmed Mohamed

The existing system is redundant for SEMIPOL® Excitation Equipment D3.1 (SEE), the system include two channels CH#1 & CH#2 and observed that kept SEE as redundant on both channels but SFC is indicated in CH#1 only. The study of the system and the idea was proposed and requested the manufacturer to give the feasibility of the modification, after deep study the proposal approved as pioneer and innovative idea. The concept of proposed modification is to keep SFC full redundant even after start up, the benefits from modification when any abnormal appeared during running of the machine in one of the channels will not effect of SFC whenever required in the startup. The modification will increase the reliability of the system and availability of the equipment which cause the sustainability for the generation of the power energy. The achievement is the first in the world modification talk place as initiated from Dubai Electricity and Water Authority (DEWA).