Switchboards for Power, Light and Railway Service, Direct and Alternating Current, High and Low TensionDerry-Collard Company, 1905 - 192 стор. |
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Результати 1-5 із 29
Сторінка 7
... the al- ternating current systems we have the single phase and the polyphase , both being of the constant potential type . Constant current alternating currents are very seldom Before switchboards were used . used , except for " 7.
... the al- ternating current systems we have the single phase and the polyphase , both being of the constant potential type . Constant current alternating currents are very seldom Before switchboards were used . used , except for " 7.
Сторінка 103
... The sockets on switchboards of the type illustrated in Plugs for arc Switchboards . Figs . 50 and 51. Figure 53 For three circuits . Figure 54 Back of figure 53 . One panel for single phase generator switchboard . 103.
... The sockets on switchboards of the type illustrated in Plugs for arc Switchboards . Figs . 50 and 51. Figure 53 For three circuits . Figure 54 Back of figure 53 . One panel for single phase generator switchboard . 103.
Сторінка 107
... phase alternating current generator . The generator is shown at A. The field mag- netizing coils are energized by a continuous current de- rived from a small continuous current generator shown at E. The current from the alternator ...
... phase alternating current generator . The generator is shown at A. The field mag- netizing coils are energized by a continuous current de- rived from a small continuous current generator shown at E. The current from the alternator ...
Сторінка 108
... Co. Switchboard for single phase alternating current . is shown a voltmeter transformer , the primary of which is connected across the circuit between switch D and the Single phase Switchboards . alternator . If the voltage of 108.
... Co. Switchboard for single phase alternating current . is shown a voltmeter transformer , the primary of which is connected across the circuit between switch D and the Single phase Switchboards . alternator . If the voltage of 108.
Сторінка 109
William Baxter. Single phase Switchboards . alternator . If the voltage of the alternator is low this transformer is not required , and the voltmeter is con- nected directly across the line , just as in a continuous current system . For ...
William Baxter. Single phase Switchboards . alternator . If the voltage of the alternator is low this transformer is not required , and the voltmeter is con- nected directly across the line , just as in a continuous current system . For ...
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Загальні терміни та фрази
alternating current ammeter amperes angle armature arranged branch circuits break switches bus bars cables carbon circuit breaker circuit connections close the circuit conducting bars conductors connected with bus construction cross section current passes current strength Derry Collard Derry Collard Co desired devices diagram distributing circuits double throw Electric equalizing bus equalizing wires erator feed field coils field regulator four fuse G Figure ground detector hence increased independent Independent Circuits instruments insulation lamps lever light board lightning arrester located lower machines magnet main switch marble slabs means meter nected Non-arcing metals operated panel Phase Switchboard rent resistance rheostats safety fuse seen series coils set of busses short circuit shown in Fig shows shunt single phase sockets spark street mains switch blade synchronizing three phase three-wire system tion transformers two-pole upper vapor vertical voltage voltmeter volts wattmeter Westinghouse