Switchboards for Power, Light and Railway Service, Direct and Alternating Current, High and Low TensionDerry-Collard Company, 1906 - 192 стор. |
З цієї книги
Результати 1-5 із 12
Сторінка 69
... surface for the same cross section , and therefore will not heat up to the same extent with a given current strength . The general arrangement of these connecting bars is shown in Fig . 27 , which represents the back of a switch- board ...
... surface for the same cross section , and therefore will not heat up to the same extent with a given current strength . The general arrangement of these connecting bars is shown in Fig . 27 , which represents the back of a switch- board ...
Сторінка 72
... busses E2 E3 C2 must have cross sections of 2 inches , and the bars d d d and d ' d ' d ' and the secondary busses E4 E5 C3 must have cross sec- tions of I square inch . 2 Figure 30 . Increasing radi- ating surface . Radiating 72.
... busses E2 E3 C2 must have cross sections of 2 inches , and the bars d d d and d ' d ' d ' and the secondary busses E4 E5 C3 must have cross sec- tions of I square inch . 2 Figure 30 . Increasing radi- ating surface . Radiating 72.
Сторінка 73
William Baxter. 2 Figure 30 . Increasing radi- ating surface . Radiating heat of current . When the cross section of the bars is ... surface ; hence the construction shown in Figs . 30 and 31 . Laminated bus bars . If Fig . 27 is closely 73.
William Baxter. 2 Figure 30 . Increasing radi- ating surface . Radiating heat of current . When the cross section of the bars is ... surface ; hence the construction shown in Figs . 30 and 31 . Laminated bus bars . If Fig . 27 is closely 73.
Сторінка 74
... surface by laminating . generator switches and the connections with switch S .. All the other busses and connecting bars are held by means of the connections with the distributing switches S ' , and also by the connection with the ...
... surface by laminating . generator switches and the connections with switch S .. All the other busses and connecting bars are held by means of the connections with the distributing switches S ' , and also by the connection with the ...
Сторінка 75
... surface , al- though attachment to the marble slabs without insulation may be made if the voltage is not over 110 and the installa- tion is of small capacity , say , under 100 horse - power . Marble and slate are generally good enough ...
... surface , al- though attachment to the marble slabs without insulation may be made if the voltage is not over 110 and the installa- tion is of small capacity , say , under 100 horse - power . Marble and slate are generally good enough ...
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Загальні терміни та фрази
alternating current ammeter amperes angle armature arranged branch circuits break switches bus bars cables 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 Figure four fuse 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 switch S2 synchronizing three phase three-wire system tion transformers upper vapor vertical voltage voltmeter volts wattmeter Westinghouse