Title:
DOUBLING CONTROL SYSTEM FOR AUTOMATIC PULSE PHASE SHIFTER
Document Type and Number:
Japanese Patent JPS5948000
Kind Code:
A
Abstract:
PURPOSE:To enable to perform the maintenance of an automatic pulse phase shifter by supplying the gate pulse of a manual/automatic pulse phase shifter as standby system to an automatic pulse phase shifter monitor and inhibiting the switch to the standby system when a malfunction is detected. CONSTITUTION:The output V of a generator G is inputted through a voltage transformer 1 to an automatic voltage regulator 2. The output voltage of a generator G is compared by a device 2 with an instruction value S at the control operation time, and a control signal is outputted to an automatic system controller 3 and a manual system controller 4. Normally, the automatic system is selected, and the output voltage of the generator G is controlled from an automatic system automatic pulse phase shifter 6A. When the phase shifter 6A is further operated, a suppress signal 13 is fed to the manual system automatic pulse phase shifter 6M which becomes the standby system when the phase shifter 6A is operated, thereby inhibiting the output. On the other hand, basic pulses 16a, 16b are inputted from phase shifters 6A, 6M to pulse malfunction monitor 15 in the automatic pulse phase shifter. The monitor 15 indicates the malfunction when detecting the malfunction, and feeds a signal 18 to the automatic system/manual system switch 5, thereby inhibiting the switch.
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Inventors:
ETOU SHIYUUICHI
OBANA GIHEE
OBANA GIHEE
Application Number:
JP15654182A
Publication Date:
March 17, 1984
Filing Date:
September 10, 1982
Export Citation:
Assignee:
HITACHI LTD
International Classes:
H02P9/30; (IPC1-7): H02P9/30
Attorney, Agent or Firm:
Katsuo Ogawa (2 outside)
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