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 17
Сторінка 7
... rents we have the constant potential and the constant cur- rent systems , and each one requires a switchboard ar- ranged in a decidedly different manner . For the al- ternating current systems we have the single phase and the polyphase ...
... rents we have the constant potential and the constant cur- rent systems , and each one requires a switchboard ar- ranged in a decidedly different manner . For the al- ternating current systems we have the single phase and the polyphase ...
Сторінка 8
... rent systems are the most simple we will start the dis- cussion with these , taking up first the constant potential switchboard . The switchboard , in the strictest sense of the word , is not an indispensable adjunct of an electrical ...
... rent systems are the most simple we will start the dis- cussion with these , taking up first the constant potential switchboard . The switchboard , in the strictest sense of the word , is not an indispensable adjunct of an electrical ...
Сторінка 20
... rent , all the current must pass through it ; but the volt- meter measures the pressure ; hence , it must be acted upon by the total pressure , and to be so acted upon , it must bridge the circuit from one side to the other , that is ...
... rent , all the current must pass through it ; but the volt- meter measures the pressure ; hence , it must be acted upon by the total pressure , and to be so acted upon , it must bridge the circuit from one side to the other , that is ...
Сторінка 31
... rent in consequence of the increase in voltage due to the increased strength of the field . When the wires d d ... rents generated in the two armatures cannot be very great . For the operation of two generators in parallel the in ...
... rent in consequence of the increase in voltage due to the increased strength of the field . When the wires d d ... rents generated in the two armatures cannot be very great . For the operation of two generators in parallel the in ...
Сторінка 36
... rent cannot pass to the external circuit . When this switch is closed to the left side , as shown in the diagram , the cur- rent from bus N will pass to the top and bottom busses of the upper set , and the current from the P bus will ...
... rent cannot pass to the external circuit . When this switch is closed to the left side , as shown in the diagram , the cur- rent from bus N will pass to the top and bottom busses of the upper set , and the current from the P bus will ...
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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