Restriking voltage, and its import in circuit-breaker operation

Restriking voltage and its principal significance are described, and the problem of relating these to circuitbreaker operation in power systems is stated. An instrument for showing inherent restriking-voltage characteristics is described in some detail, reasons being given for the leading features adopted; and the method of operation is outlined. The scope of possibilities in system investigations and in circuit-breaker development is indicated. A short appendix deals with design of the instrument.