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 29
Сторінка 21
... four feet . All the wires are placed on the back of the board , and the switches , circuit breaker and instruments are on the front . The field reg- ulator is also placed on the back , and only the handle projects through to the front ...
... four feet . All the wires are placed on the back of the board , and the switches , circuit breaker and instruments are on the front . The field reg- ulator is also placed on the back , and only the handle projects through to the front ...
Сторінка 23
... four , and so on , for any greater number . In Fig . 12 is illustrated the manner of making the connections when the external circuits are divided into two systems , and from this diagram , the method employed with a greater number of ...
... four , and so on , for any greater number . In Fig . 12 is illustrated the manner of making the connections when the external circuits are divided into two systems , and from this diagram , the method employed with a greater number of ...
Сторінка 28
... four or any other number of shunt ma- chines would be connected in the same manner ; that is , with all the a brushes connected with one bus bar , and all the b brushes with the other bus . Shunt - wound genera- tors , however , are ...
... four or any other number of shunt ma- chines would be connected in the same manner ; that is , with all the a brushes connected with one bus bar , and all the b brushes with the other bus . Shunt - wound genera- tors , however , are ...
Сторінка 30
... M M o 00 Figure 17 R The Derry Collard Co R 0 O O Apparatus required . result is attained by the type of. Two generators in parallel with instruments connected in place . Another arrangement for four generators and four circuits . 30.
... M M o 00 Figure 17 R The Derry Collard Co R 0 O O Apparatus required . result is attained by the type of. Two generators in parallel with instruments connected in place . Another arrangement for four generators and four circuits . 30.
Сторінка 42
... for each generator and only one ammeter for the two . The best arrangement of all , is to provide a differential voltmeter , to be used for the purpose of connecting the generators Four generators in parallel . with the circuit . One 42.
... for each generator and only one ammeter for the two . The best arrangement of all , is to provide a differential voltmeter , to be used for the purpose of connecting the generators Four generators in parallel . with the circuit . One 42.
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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