Page 388 - Improving Machinery Reliability

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Unit Date Solo Runs: Description of Run Remarks s+
os
CT-0 1 7130198 Turbine solo run: checked mechanical bolt Vibrations good. s
Turbine Solo trip three times; running approximately six Outboard bearing thermocouple reading C&
hours. Hi (215”F), trip set at 4275 rpm, had s.
trouble with vacuum. 3
CT-0 1 713 1/98 Turbine solo: checked electronic trip Vibrations good. Outboard bearing E
Turbine Solo three times; running time approximately TC reading Hi 214”F, trip set at s
four hours. 4170 rpm, vacuum problems.
CT-02 8/02/98 Turbine solo: checked bolt trip and Vibrations good, bearing temps Sr
Turbine Solo electronic trip each three times; running good, trip set at 6600 $
time approximately six hours. mechanical bolt trip, 6540
electronic trip, had trouble
with vacuum. Running time
during solo runs for C-01: 10
hours, for C-02: 6.0 hours.
c-01 8/04/98 Air run-in: First air run-in of compressor train: Vibrations all good-high temperature
Train low pressure-frst three stages of turbine outboard bearing, some
compression; running time approximately “stall” noticeable on double
five hours. flow inboard side at 1500 rpm-
none above critical speed, had
troubles with condenser,
ejectors and seal oil AP.
Figure 8-10. Event log for charge gas trains.