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 24
Сторінка 14
... nected by the wires e and h directly with the leads from the commutator brushes , so that the coils m m shunt the armature only . This connection is called the short shunt , and is the one most generally used , and , in fact , the only ...
... nected by the wires e and h directly with the leads from the commutator brushes , so that the coils m m shunt the armature only . This connection is called the short shunt , and is the one most generally used , and , in fact , the only ...
Сторінка 15
... 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 the ammeter are connected in the A multi ...
... 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 the ammeter are connected in the A multi ...
Сторінка 23
... nected . From the foregoing it will be seen that by this ar- rangement we can connect the generator with the upper or the lower busses independently , or we can connect it with both by closing the s s switch . Buildings in large cities ...
... nected . From the foregoing it will be seen that by this ar- rangement we can connect the generator with the upper or the lower busses independently , or we can connect it with both by closing the s s switch . Buildings in large cities ...
Сторінка 25
... connected with the top and bottom contacts on the left side of the double - throw switch S1 . The wires L from the street mains are con- nected with the contacts on the right of this S , switch . When the generator is in use , the ...
... connected with the top and bottom contacts on the left side of the double - throw switch S1 . The wires L from the street mains are con- nected with the contacts on the right of this S , switch . When the generator is in use , the ...
Сторінка 34
... S ' is opened , the right- hand generator will be cut out . When either one of these switches is closed , its respective generator is con- nected with the circuit , the center contact , which is the -m- R Am A simple switchboard . E N To ...
... S ' is opened , the right- hand generator will be cut out . When either one of these switches is closed , its respective generator is con- nected with the circuit , the center contact , which is the -m- R Am A simple switchboard . E N To ...
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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 four fuse ground detector h Figure hence increased independent instruments insulation lamps lever light board lightning arrester lightning discharge located lower machines magnet main switch marble slabs means meter nected opening the circuit operated panel placed plugs rent resistance rheostats safety fuse seen series coils set of busses short circuit shown in Fig shows shunt sockets spark street mains switch blade switch is closed synchronizing three phase three-wire system tion transformers two-pole upper vapor vertical voltage voltmeter volts wattmeter Westinghouse