. Electric railway journal . The 1200-volt bus is carried in a fireproof compartment abovethe soapstone slabs. The rotary rheostats are mounted on thesoapstone slabs above the panels. A Thomson watt-hour meterand a Westinghouse graphic recording wattmeter are in-stalled to measure the total output of the substation. Theentire switchboard was furnished by the Westinghouse Electric& Manufacturing Company. Two 30-kw, 13,200-2300-volt Allis-Chalmers transformers fur-nish 25-cycle current for the operation of the local block signalsystem. 203 The station is lighted from the 250-volt excitation bus,
. Electric railway journal . The 1200-volt bus is carried in a fireproof compartment abovethe soapstone slabs. The rotary rheostats are mounted on thesoapstone slabs above the panels. A Thomson watt-hour meterand a Westinghouse graphic recording wattmeter are in-stalled to measure the total output of the substation. Theentire switchboard was furnished by the Westinghouse Electric& Manufacturing Company. Two 30-kw, 13,200-2300-volt Allis-Chalmers transformers fur-nish 25-cycle current for the operation of the local block signalsystem. 203 The station is lighted from the 250-volt excitation bus, acrosswhich a balancer set is connected to produce a three-wire sys-tem. For emergency use taps brought out from the middlecells of the storage battery are connected to a 9-point end-cellswitch. The turbine and the boiler rooms are lighted by Gen-eral Electric amp luminous arc lamps suspended from thesteel work. For other lighting around the generating stationbuilding individual 16-cp lamps are generally Southern Pacific Power Station—Front of 1200-Volt Board AUXILIARY POWER SUPPLY The Great Western Power Company has installed tempo-rarily on the No. 4 turbo-generator foundation a GeneralElectric 2500-kw frequency changer consisting of an 11,000-volt, 60-cycle synchronous motor, direct-connected to a 13,200-volt, 25-cycle generator. Its oil switches and switchboard for
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