| 摘要 |
An electrical power circuit breaker assembly is constituted by a plurality of parallel arranged gas-filled tubular enclosed modules which respectively contain the various operating components. A plurality of power switching units and a voltage isolating switching unit, all connected in series constituting one such module, are located in one of the tubular enclosures and one or more of the other tubular enclosures contain other auxiliary modules such as a conductor bar which is connectible electrically in parallel with the series-connected power switching units through a disconnect switch to increase the rated current carrying capacity of the circuit breaker module during the period when the breaker contacts are closed by shunting current away from the latter. The parallel arranged tubular enclosed modules are interconnected at their ends by other tubular enclosure parts which enclose the necessary conducting members for electrically interconnecting the various modules and these latter enclosure parts include bulkhead insulators for sealing off the various parallel arranged gas-filled tubular enclosed modules each from the other.
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