. Electric railway journal . tor rheostats and speed-chang-ing devices are motor-operated from the benchboard. A total-izing panel is provided for metering the total output of thegenerating station by means of curve-drawing watt, volt andfrequency meters. The substation 1200-volt board is installed at right anglesto and near the power station board. Double-panel construc-tion is used, with the front and the rear panels 4 ft. apart. Allswitches and circuit-breakers are the remote-control, hand-op-erated type. The front panels contain the instruments andswitch-operating levers. The switches and
. Electric railway journal . tor rheostats and speed-chang-ing devices are motor-operated from the benchboard. A total-izing panel is provided for metering the total output of thegenerating station by means of curve-drawing watt, volt andfrequency meters. The substation 1200-volt board is installed at right anglesto and near the power station board. Double-panel construc-tion is used, with the front and the rear panels 4 ft. apart. Allswitches and circuit-breakers are the remote-control, hand-op-erated type. The front panels contain the instruments andswitch-operating levers. The switches and circuit-breakers aremounted on the rear panels. Spare rotary and spare feederbreakers are provided, with their switches connected to thespare breaker buses mechanically interlocked so that only onerotary or feeder at a time can be connected to its respectivespare breaker bus. While the angle-iron frames of the frontand rear panels are insulated from ground and from eachother, the station will be operated with the front frame. Southern Pacific Power Station—Rotary Unit ShowingStarting Panel grounded and the rear frame insulated. Soapstone slabs placedacross the top brace the front and the rear panels. 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 boi
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