Switchboards for Power, Light and Railway Service, Direct and Alternating Current, High and Low TensionDerry-Collard Company, 1906 - 192 стор. |
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Результати 1-5 із 44
Сторінка 11
... machines . In Fig . 2 the generator connections are shown for a simple shunt two - pole generator . At V a voltmeter is placed which indicates the em f developed , and , as will be noticed , it is connected directly across the main ...
... machines . In Fig . 2 the generator connections are shown for a simple shunt two - pole generator . At V a voltmeter is placed which indicates the em f developed , and , as will be noticed , it is connected directly across the main ...
Сторінка 13
... machine . In this diagram the series coils are connected in successive order , and the armature is at one end , but when the generator is intended to be used singly , the armature can be connected between the series field coils , as in ...
... machine . In this diagram the series coils are connected in successive order , and the armature is at one end , but when the generator is intended to be used singly , the armature can be connected between the series field coils , as in ...
Сторінка 15
... machines of the compound type are con- nected as in Fig . 9 , and in some cases , where the 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 ...
... machines of the compound type are con- nected as in Fig . 9 , and in some cases , where the 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 ...
Сторінка 26
... passes through main switch then to circuit breaker . that , while in a regular three - wire system the neutral wire is smaller than either of the other two , in some cases Connecting two machines . being only one - third the 26.
... passes through main switch then to circuit breaker . that , while in a regular three - wire system the neutral wire is smaller than either of the other two , in some cases Connecting two machines . being only one - third the 26.
Сторінка 27
... machines are of the simple shunt - wound type , nothing can be done to equalize the work between them , except to adjust the field regu- lators so that all the generators develop the same volt- age ; and if they are all of the same size ...
... machines are of the simple shunt - wound type , nothing can be done to equalize the work between them , except to adjust the field regu- lators so that all the generators develop the same volt- age ; and if they are all of the same size ...
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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