Title:
SURGE CURRENT PREVENTING CIRCUIT
Document Type and Number:
Japanese Patent JPH04317514
Kind Code:
A
Abstract:
PURPOSE: To enhance reliability of a surge current preventing circuit, to prolong service life of components and to make possible to replace components of the surge current preventing circuit under live state.
CONSTITUTION: A circuit 5 comprising ON delay timers T1, T2 connected in parallel is connected to the poststage of a power switch 4. A circuit 6 comprising relay contacts TA1, TA2 of the ON delay timers T1, T2 is connected to the poststage of the circuit 5. Furthermore, a circuit 7 comprising a current limit resistor 8 and relay contacts RA1, RA2 is connected to the poststage of the circuit 6.
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Inventors:
SAKAMOTO MITSUYASU
Application Number:
JP11073491A
Publication Date:
November 09, 1992
Filing Date:
April 17, 1991
Export Citation:
Assignee:
TAKAOKA ELECTRIC MFG CO LTD
International Classes:
H02H9/02; H02J1/00; (IPC1-7): H02H9/02; H02J1/00