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 27
Сторінка 8
... operate a boiler without a steam gauge , but they were so used in days gone by , and if we had no gauge we could get along without it . These remarks are equally applicable to the electrical switchboard . In the early days of " arc ...
... operate a boiler without a steam gauge , but they were so used in days gone by , and if we had no gauge we could get along without it . These remarks are equally applicable to the electrical switchboard . In the early days of " arc ...
Сторінка 11
... operate a single constant potential generator all we re- quire is a field regulator , a circuit breaker , an ammeter , a voltmeter and a switch to open the circuit . To this we should also add switches for opening independently the ...
... operate a single constant potential generator all we re- quire is a field regulator , a circuit breaker , an ammeter , a voltmeter and a switch to open the circuit . To this we should also add switches for opening independently the ...
Сторінка 21
... the generator so arranged that any one system may be operated alone or all at the same time . If the external circuits are divided into two independent systems , the arrangement of the switch- { 2 k $ 2 S3 d C A b 21.
... the generator so arranged that any one system may be operated alone or all at the same time . If the external circuits are divided into two independent systems , the arrangement of the switch- { 2 k $ 2 S3 d C A b 21.
Сторінка 27
... operate two or more generators in parallel , that is , so as to feed into the same system of external wires , the simplicity of Fig . 11 cannot be preserved , for then it becomes necessary to provide means that will prevent one of the ...
... operate two or more generators in parallel , that is , so as to feed into the same system of external wires , the simplicity of Fig . 11 cannot be preserved , for then it becomes necessary to provide means that will prevent one of the ...
Сторінка 34
... operate , current from the street mains may be turned on at once . From the explanation which follows , the manner in ... operated in parallel , to connect the entering ends , as well as the leaving ends , of all the series coils , so ...
... operate , current from the street mains may be turned on at once . From the explanation which follows , the manner in ... operated in parallel , to connect the entering ends , as well as the leaving ends , of all the series coils , so ...
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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