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 9
Сторінка 37
... metal unless they are of the enclosed type . It is very seldom that a board is arranged so as to depend wholly upon safety fuses - a regular mag- netic circuit breaker is invariably provided in the most modern installations . A magnetic ...
... metal unless they are of the enclosed type . It is very seldom that a board is arranged so as to depend wholly upon safety fuses - a regular mag- netic circuit breaker is invariably provided in the most modern installations . A magnetic ...
Сторінка 79
... metal . The relation between the width . and the thickness of the bars has to be determined by the amount of surface required where two bars are joined , and also by the thickness necessary to afford the proper stiffness . A straight ...
... metal . The relation between the width . and the thickness of the bars has to be determined by the amount of surface required where two bars are joined , and also by the thickness necessary to afford the proper stiffness . A straight ...
Сторінка 106
... . 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 the other . Switchboards for alternating currents . The construction of alternating current 106.
... . 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 the other . Switchboards for alternating currents . The construction of alternating current 106.
Сторінка 156
... metal of both parts . This burning not only results in gradually consuming the working parts of the switch , but by roughening up the surface destroys the perfect contact . The trouble can be remedied by smoothing off the burned ...
... metal of both parts . This burning not only results in gradually consuming the working parts of the switch , but by roughening up the surface destroys the perfect contact . The trouble can be remedied by smoothing off the burned ...
Сторінка 161
... metal near the contacts as possible . One way of increas- ing the bulk of metal is shown in Fig . 126. It is very commonly used in switches of the side - throw type , in which case the thick side of the jaw rests upon the sur- face to ...
... metal near the contacts as possible . One way of increas- ing the bulk of metal is shown in Fig . 126. It is very commonly used in switches of the side - throw type , in which case the thick side of the jaw rests upon the sur- face to ...
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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