Wiring tools

Abstract

Abstract PURPOSE: To ensure the effective utilization of various kinds of electric devices within a limited capacity by the method in which current flowing one plug socket is detected and the line of power source leading to the other plug socket is broken. CONSTITUTION: The attachment plug 1 is connected to the series circuit for the first plug socket 2, the second plug socket 5, and the switch 6. The current of the first plug socket 2 is detected by the current transformer 7, and the output controls the thyristor 9 through the amplifier 8, whereby operating the switch 6 through the relay 10. Thus, current is passed preferentially to an electric device connected to the plug socket 2, and current is passed to an electric device connected to the plug socket 5 only when no current is passed to the electric device of the plug socket 2, so that power contract capacity is amall and thus operation is made economical COPYRIGHT: (C)1979,JPO&Japio

Inventors

• 👤 Shigehiro Morii

Bibliographic Details