Switchboards for Power, Light and Railway Service, Direct and Alternating Current, High and Low TensionDerry-Collard Company, 1905 - 192 стор. |
З цієї книги
Результати 1-5 із 27
Сторінка 11
... placed which indicates the e m f developed , and , as will be noticed , it is connected directly across the main lines by wires g g . At Am , an ammeter is connected in series in the line N , and it measures the strength of the current ...
... placed which indicates the e m f developed , and , as will be noticed , it is connected directly across the main lines by wires g g . At Am , an ammeter is connected in series in the line N , and it measures the strength of the current ...
Сторінка 15
... ca- pacity is great , the series coils are placed in parallel , as in Fig . 10. In both these diagrams it will be seen that the voltmeter and the ammeter are connected in the A multi - polar generator . same way as in 15.
... ca- pacity is great , the series coils are placed in parallel , as in Fig . 10. In both these diagrams it will be seen that the voltmeter and the ammeter are connected in the A multi - polar generator . same way as in 15.
Сторінка 16
... . Figure 9 Compound c nnections for multi - polar generator . be well to mention here that it is immaterial in which one of the lines the ammeter is placed , as the current is the same in both . Am R M 6 e M Z C g h 16.
... . Figure 9 Compound c nnections for multi - polar generator . be well to mention here that it is immaterial in which one of the lines the ammeter is placed , as the current is the same in both . Am R M 6 e M Z C g h 16.
Сторінка 18
... placed at the points where the several circuits branch off . It can be readily realized , however , that if they are located in some systematic order at some convenient point they will not only present a more methodical appearance , but ...
... placed at the points where the several circuits branch off . It can be readily realized , however , that if they are located in some systematic order at some convenient point they will not only present a more methodical appearance , but ...
Сторінка 20
... placed in two or three rows one above the other . An incan- descent lamp placed at k serves to illuminate the board so that the attendant may be able to see the position of the switches and take readings of the instruments at all times ...
... placed in two or three rows one above the other . An incan- descent lamp placed at k serves to illuminate the board so that the attendant may be able to see the position of the switches and take readings of the instruments at all times ...
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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