EXCITATION CONTROLLER FOR SYNCHRONOUS MACHINE
申请公布号:JPS58176000(A)
申请号:JP19820060084
申请日期:1982.04.08
申请公布日期:1983.10.15
发明人:TAKAISHI TOSHIAKI
分类号:H02P9/14;(IPC1-7):02P9/14
主分类号:H02P9/14
摘要:PURPOSE:To improve the reliability of a generator at the operating time by varying the operating point of a low excitation limiter in response to normal or abnormal state of a power system stabilizer. CONSTITUTION:An automatic voltage regulator 5 controls an exciter 3 in response to the deviation between the outputs of a voltage detector 4, a power system stabilizer 7 and a low excitation limiter 8 and the reference voltage from a reference unit 51. The operating point of the limiter 8 is switched in cooperation with a defect monitor 73 of the stabilizer 7. In other words, when the stabilizer 7 is normal, the operating point of the limiter 8 is release to increase the power system stabilizing function, and when the stabilizer 7 becomes defective and is disconnected, the operating point of the limiter 8 is returned to the normal value. In this manner, the reliability of the generator at the operating time can be increased.
PROCESS FOR THE PREPARATION OF DI- AND POLYAMINES OF THE DIPHENYLMETHANE SERIES
Filter for plasma display panel and plasma display apparatus having the filter
MEMORY DEVICE USING THE TIME FROM A TRUSTED HOST DEVICE AND METHOD FOR USE THEREWITH
SURFACE WAVE RESONATOR HAVING REDUCED PARASITIC RESONANCE
SOLID STATE MEMORY UTILIZING ANALOG COMMUNICATION OF DATA VALUES
Method and system for auditing and verifying user spoken instructions for an electronic casino game