Switchboards for Power, Light and Railway Service, Direct and Alternating Current, High and Low TensionDerry-Collard Company, 1905 - 192 стор. |
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Результати 1-5 із 37
Сторінка 9
... devices used to avoid the destructive ef- fects of overloads ; one is the " safety fuse , " which is simply a piece ... device acts , as at that point the force of the magnet is sufficient to overcome the reactive force . Generators used ...
... devices used to avoid the destructive ef- fects of overloads ; one is the " safety fuse , " which is simply a piece ... device acts , as at that point the force of the magnet is sufficient to overcome the reactive force . Generators used ...
Сторінка 11
... device is provided by means of which the pressure may be increased or decreased without changing the velocity . This device is simply a resistance , or rheostat , and is called a field regulator . If the voltage of the generator is too ...
... device is provided by means of which the pressure may be increased or decreased without changing the velocity . This device is simply a resistance , or rheostat , and is called a field regulator . If the voltage of the generator is too ...
Сторінка 18
... devices are located so long as they are where they can be seen and readily reached when desired . As to the switches d d d , it is not neces- sary that they should even be in the same room as the generator , for they can be placed at ...
... devices are located so long as they are where they can be seen and readily reached when desired . As to the switches d d d , it is not neces- sary that they should even be in the same room as the generator , for they can be placed at ...
Сторінка 19
William Baxter. L L L B L S B h g Am b d a M m A Figure 11 The Derry Collard Co Connecting the instruments . meter and other devices were strewn. A simple switch board . Two generators in parallel with instruments connected in place .
William Baxter. L L L B L S B h g Am b d a M m A Figure 11 The Derry Collard Co Connecting the instruments . meter and other devices were strewn. A simple switch board . Two generators in parallel with instruments connected in place .
Сторінка 20
William Baxter. Connecting the instruments . meter and other devices were strewn along the wall wherever there was an available space . In the regularly organized board of Fig . 11 the volt- meter and ammeter are located at the top . By ...
William Baxter. Connecting the instruments . meter and other devices were strewn along the wall wherever there was an available space . In the regularly organized board of Fig . 11 the volt- meter and ammeter are located at the top . By ...
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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