| 摘要 |
<p>PURPOSE:To prevent the excessive drop of setting load after the load runback by a method wherein the regulating valve once throttled in case of the load runback is re-opened when the generator output current is detected to have dropped to the current value equivalent to the generator self-cooled capacitance or less. CONSTITUTION:When the cooling system trouble detector 11 of the generator starts to operate and the load current value is the current value equivalent to the self- cooled capacitance or more, then, the No.1 current detector 10 emits the output to allow the runback command A to be emitted, thus, performing the close operation of the regulating valve 3 in a certain speed. When the load current decreases to the current value equivalent to the self-cooled capacitance of the generator or less, the runback command A is not emitted. After the load runback is completed, when the load current decreases to the slightly lower value than the current value equivalent to the self-cooled capacitance of the generator, then, the 2nd current detector starts to operate, emits the signal B to perform the close operation of the regulating valve 3.</p> |
