. Electric railway journal . c which follows a dis-charge, especially when two phasesbreak over simultaneously, will in-variably trip the circuit breakers atsectionalizing points unless they areset so high as to diminish greatly their protective is true also of the horn-gaps themselves. Withoutseries resistances they must be set wide enough to in-crease considerably the voltage strain on the trans-former at the break-over point. Since the apparatus must operate for long periodswithout attention, and since the maintenance force gen-erally consists only of the railway line and track c
. Electric railway journal . c which follows a dis-charge, especially when two phasesbreak over simultaneously, will in-variably trip the circuit breakers atsectionalizing points unless they areset so high as to diminish greatly their protective is true also of the horn-gaps themselves. Withoutseries resistances they must be set wide enough to in-crease considerably the voltage strain on the trans-former at the break-over point. Since the apparatus must operate for long periodswithout attention, and since the maintenance force gen-erally consists only of the railway line and track crews,the apparatus must be mechanically simple, the condi-tion of which can be determined by a casual instance, a horn-gap switch with knife-blade con-tacts might eventually make poor contact owing to thebending of the switch jaws, while copper spring leavesworking against a copper block cannot fail to makegood contact so long as the switch can be closed. Ex-posure to weather, of course, demands that the appa-. INTERIOR VIEW OFOUTDOOR SWITCHAND METER HOUSE
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
