| 摘要 |
<p>PURPOSE:To prevent occurrence of differential output of generator with the output of intermediate and low pressure turbine by detecting first stage post pressures of high and intermediate pressure turbines, multiplying the detected pressures by the output bearing rates of high and intermediate.low pressure turbines and employing the sum of the multiplication results, i.e., the output of the generator, as a feedback signal in the load control. CONSTITUTION:Pressure transmitters 11, 12 detect first stage post pressures of a high pressure turbine 5 and an intermediate pressure turbine 6, respectively, and output signals (a), (b) from the pressure transmitters 11, 12 are then multiplied by high pressure and intermediate.low pressure turbine bearing rates, respectively, at multipliers 13, 14 thus producing signals (c), (d). Furthermore, an adder 15 produces a signal (c+d) which is considered output of the generator and employed as a feedback signal to a load controller 8. By such arrangement, occurrence of differential output from the generator can be prevented with the outputs from the intermediate.low pressure turbine.</p> |
