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 15
Сторінка 9
... prevent burn- ing out generators of the incandescent type , by overload- ing , safety devices were gotten up ; these acting by open- ing the circuit and thus stopping the flow of current whenever the danger limit is reached . There are ...
... prevent burn- ing out generators of the incandescent type , by overload- ing , safety devices were gotten up ; these acting by open- ing the circuit and thus stopping the flow of current whenever the danger limit is reached . There are ...
Сторінка 27
... prevent one of the generators from taking more than its share of the load . If the machines are of the simple shunt - wound type , nothing can be done to equalize the work between them , except to adjust the field regu- lators so that ...
... prevent one of the generators from taking more than its share of the load . If the machines are of the simple shunt - wound type , nothing can be done to equalize the work between them , except to adjust the field regu- lators so that ...
Сторінка 75
... prevent the bars from coming in contact with each other by vibrations , or otherwise , they must be additionally supported by means of attachments with the marble slabs or the supporting frame of the latter . ה Holding conducting bars ...
... prevent the bars from coming in contact with each other by vibrations , or otherwise , they must be additionally supported by means of attachments with the marble slabs or the supporting frame of the latter . ה Holding conducting bars ...
Сторінка 79
... prevent vibration , but bars as thin as 1/4 inch may be as long as 4 or 5 feet between supporting points , and if bars that are to be maintained separate from each other are held in position by means of plates of Current in " lapped ...
... prevent vibration , but bars as thin as 1/4 inch may be as long as 4 or 5 feet between supporting points , and if bars that are to be maintained separate from each other are held in position by means of plates of Current in " lapped ...
Сторінка 107
... prevent arcing from one to the other . The construction of the switches is also consider- ably modified , and for strong currents they are frequently made so as to be operated by electromagnets or com- pressed air . Switches of this ...
... prevent arcing from one to the other . The construction of the switches is also consider- ably modified , and for strong currents they are frequently made so as to be operated by electromagnets or com- pressed air . Switches of this ...
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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