Title:
SYNCHRONIZATION DETECTOR IN LOWWFREQUENCY SYNCHRONIZATION STARTING SYSTEM
Document Type and Number:
Japanese Patent JPS5558784
Kind Code:
A
Abstract:
PURPOSE:To accomplish synchronization detection correctly and quickly at turning and acceleration by applying the interrupt function of a computer. CONSTITUTION:Proximity switches 81 and 82 which sense the positions of rotors without contact are arranged at the close vicinity of a synchronous generator 4 and a synchronous motor 6. A control computor 9 receives the output signals from both proximity switches 81 and 82, a turning operation signal through a contact K1 which is closed during the turning operation by a turning motor 5, and an acceleration operation signal through a contact K2 which is closed during the accelerating operation by an induction-synchronization motor 3. At the time of turning operation or acceleration operation, the state of synchronization between the synchronous generator 4 and the synchronous motor 6 are sensed, and a contact S1 or S2 is closed.
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Inventors:
IGAWA HIROSHI
Application Number:
JP13186478A
Publication Date:
May 01, 1980
Filing Date:
October 26, 1978
Export Citation:
Assignee:
TOKYO SHIBAURA ELECTRIC CO
International Classes:
H02P1/52; (IPC1-7): H02P1/52