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 15
Сторінка 20
... direction . If such is not the case , its height can be increased , and the s ' switches can be 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 ...
... direction . If such is not the case , its height can be increased , and the s ' switches can be 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 ...
Сторінка 25
... direction shown in the diagram — that is , to the right - and then each one of the three wires con- nects with one of the busses . When the street service is used , the current flowing through the central wire , or bus 2 , which is the ...
... direction shown in the diagram — that is , to the right - and then each one of the three wires con- nects with one of the busses . When the street service is used , the current flowing through the central wire , or bus 2 , which is the ...
Сторінка 37
... the distributing system can be fed from the two generators , or from the street mains , by turning the switch S " in one direction or the other . When the street connection is not 1 More about instruments . made , the arrangement is 37.
... the distributing system can be fed from the two generators , or from the street mains , by turning the switch S " in one direction or the other . When the street connection is not 1 More about instruments . made , the arrangement is 37.
Сторінка 42
... direction if the difference in the voltages were great enough . Under such conditions , the second generator would act as a motor and possibly drive the en- gine at a speed high enough to do damage . If the second machine were ...
... direction if the difference in the voltages were great enough . Under such conditions , the second generator would act as a motor and possibly drive the en- gine at a speed high enough to do damage . If the second machine were ...
Сторінка 59
... direction or the other either generator can be connected with either set of circuit breakers ; but whichever way the switches may be thrown both generators will be entirely independent of each other , and on this account no equalizing ...
... direction or the other either generator can be connected with either set of circuit breakers ; but whichever way the switches may be thrown both generators will be entirely independent of each other , and on this account no equalizing ...
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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