| 摘要 |
<p>PURPOSE:To prevent a heated unit from being overheated, by controlling the field current of a generator according to a temperature difference between the temperature of the heated unit and the approved temperature. CONSTITUTION:To a gas turbine 24, a high-frequency generator 28 is directly connected. To the high-frequency generator 28, a power factor improving condenser 32 and a heating coil 34 are connected. The output of the gas turboengine 24 is controlled by a fuel control circuit 38, and the field current of the high-frequency generator 28 is controlled by a field control circuit 40. By a temperature detecting sensor 44, the temperature detecting signal of a heated unit 36 is fed to a control circuit 46. By the control circuit 46, whether the temperature of the heated unit 36 is equal to or more than the previously set approved temperature, or not is discriminated, and signal according to the temperature difference is directed to the field control circuit 40 for input.</p> |
