Switchboards for Power, Light and Railway Service, Direct and Alternating Current, High and Low TensionDerry-Collard Company, 1906 - 192 стор. |
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Сторінка 9
... force . The strength of the magnet increases with the current , and when the predetermined point is reached , the device acts , as at that point the force of the magnet is sufficient to overcome the reactive force . Generators used for ...
... force . The strength of the magnet increases with the current , and when the predetermined point is reached , the device acts , as at that point the force of the magnet is sufficient to overcome the reactive force . Generators used for ...
Сторінка 58
... force so as to distribute into a system of circuits ; twelve of which are controlled directly and independently from the board , the others be- ing also controlled from the board , but not independently . The two generator circuits and ...
... force so as to distribute into a system of circuits ; twelve of which are controlled directly and independently from the board , the others be- ing also controlled from the board , but not independently . The two generator circuits and ...
Сторінка 60
... forces , the small switch V S being pro- vided for the purpose of connecting the instrument with either generator . In comparing the switchboards illustrated in Figs . 18 and 25 , we can see several marked differences ; for ex- ample ...
... forces , the small switch V S being pro- vided for the purpose of connecting the instrument with either generator . In comparing the switchboards illustrated in Figs . 18 and 25 , we can see several marked differences ; for ex- ample ...
Сторінка 68
... force is 220 volts , which is the pressure most commonly used , the power may be estimated roughly as equal to one horse - power to every four amperes ; hence , 200 amperes would represent fifty horse - power . If the capacity of the ...
... force is 220 volts , which is the pressure most commonly used , the power may be estimated roughly as equal to one horse - power to every four amperes ; hence , 200 amperes would represent fifty horse - power . If the capacity of the ...
Сторінка 106
... forces the back end against the side of the metallic lining and also acts to hold the plug in place . The plug being a metal rod , its insertion in the socket closes the circuit between the tube lining at one end and the split sleeve at ...
... forces the back end against the side of the metallic lining and also acts to hold the plug in place . The plug being a metal rod , its insertion in the socket closes the circuit between the tube lining at one end and the split sleeve at ...
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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