Abstract An improved power circuit breaker comprising a pair of electrodes which are to be broken in the case of accidental trouble ; a condenser ; an electromagnetic coil coupled electromagnetically with an electrode of said pair electrodes, opening of said electrodes being attained by discharging charged energy of said condenser into said electromagnetic coil ; and an electromagnetic wave generating device provided at a high potential part ; in which said electromagnetic wave is passed through interior of a support insulator, and electric energy necessary for operating said electromagnetic wave generating device is supplied from a power source for charging said condenser, whereby an electromagnetic wave corresponding to line current is produced at a high potential part and said wave is converted to an electric signal by means of a receiver provided at an earth potential part, thus introducing said signal to various control devices.
In a power circuit breaker, in which a movable electrode is forcibly opened from another confronting electrode by discharging an electric energy stored in a condenser, said electrodes forming the main circuit breaking part; an improvement according to which said circuit breaker additionally comprises an electromagnetic wave generating means which is provided in a high potential part; a passage provided in a support insulator for supporting the circuit breaker and adapted to pass said generated wave therethrough, said wave generating means being connected to a power source for charging said condenser and producing an electromagnetic wave corresponding to the magnitude of the bus line current to be broken; and a signal transmitting device comprising a receiver means provided at an earth potential side for receiving said generated wave, said receiver means converting said electromagnetic wave into an electric signal.
Claim 2
Dependent Claim
139 words
In a power circuit breaker, in which a movable electrode is forcibly opened from another confronting electrode by discharging an electric energy stored in a condenser, said electrodes forming the main circuit breaking part; an improvement according to which said circuit breaker additionally comprises an electromagnetic wave generating means which is provided in a high potential part; a passage provided in a support insulator for supporting the circuit breaker and adapted to pass said generated wave therethrough, said wave generating means being connected to a power source for charging said condenser and producing an electromagnetic wave corresponding to the magnitude of the bus line current to be broken; and a signal transmitting device comprising a receiver means provided at an earth potential side for receiving said generated wave, said receiver means converting said electromagnetic wave into an electric signal.