data continued Low speed shaft LSS Article No B3-HV-3-D Bevel-helical gear reducer B3

Flender/Flender Gear Units/Bevel-helical gear reducer B3

quirements for Combustion Turbine Generator. Page 8 of 2 Malburg Generating Station Generator Protection Setting Review 3.1 Protection Requirements as Outlined in IEEE C3.1- 2 The IEEE C3.1 -2 will be used as the basis for the required generator protective elements. Figure 1 on the pr evious page shows the typical protection package requirements employed for turbine generator. 3.2 ETAP Analysis The City of Vernon provided IEM with current Power System Model in ETAP that included MGS#1, #2, and #3 generating units. short circuit analysis was performed to verify that the fault current values utilized to set the generator protection relays was still valid under current system conditions . The analysis showed that there was deviation from the design basis, however, nothing significant enough to warrant protective relay setting chang . The output of this short circuit study is included in Appendix and the ETAP model used is included as part of this study. 3.3 Existing Analysis Power Engineers and Alstom performed detailed and rigoro us protective relay setting and calculation at the time MGS was built. The assumptions and analysis were well documented and have been reassessed against current standards for this study. The Power Engineers criteria is attached with this study while the lstom analysis is referenced. The Alstom analysis is readily available in the MGS library. 3.4 Analysis For This Study Section 4 analyzes the suitability in detail of the MGS Unit #1 and Unit #2 settings. These are lumped into one section because Unit #1 and #2 are sister units all the way through the GSU transformer. Section 5 analyzes the suitability in detail of the MGS Unit #3 settings. Although Unit #3 is similar to Unit #1 and #2, slight differences exist and are discussed. Page 9 of 2 Malburg Generating Station Generator Protection Setting Review 4.0 MGS 1 & 2 Relay Setting Analysis As stated in the summary sect