| 摘要 |
PURPOSE:To make something trouble at the time of revolving speed upping inspectable ever so earlier, by detecting time and revolving speed after generation of a starting command and thereby judging on whether the starting is proper or not, in case of compressed-air starting for a gas turbine. CONSTITUTION:There is provided with an air turbine which starts a gas turbine unit with compressed air. The time elapsed after generation of a starting command device 8 and a revolving speed signal out of a revolving speed detector 6 are taken into an input unit 41. Data of the input unit 41 and a memory 42 are calculated at an operation control unit 43, and the result is outputted to an output unit 44. Each detection of the time elapsed and the revolving speed after the command generation is carried out several times at intervals of the specified time, and when it fails to reach the specified speed set by a speed setter 31, it is judged there is something trouble. With this constitution, the trouble at the time of revolving speed upping is inspectable ever so earlier.
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