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 16
Сторінка 108
... . Switchboard for single phase alternating current . is shown a voltmeter transformer , the primary of which is connected across the circuit between switch D and the Single phase Switchboards . alternator . If the voltage of IOS.
... . Switchboard for single phase alternating current . is shown a voltmeter transformer , the primary of which is connected across the circuit between switch D and the Single phase Switchboards . alternator . If the voltage of IOS.
Сторінка 109
... transformer may be provided to furnish a secondary current to actuate the ammeter . If a transformer is provided for this purpose , its primary coil is connected in series with the main circuit , and not across it , as is the case with ...
... transformer may be provided to furnish a secondary current to actuate the ammeter . If a transformer is provided for this purpose , its primary coil is connected in series with the main circuit , and not across it , as is the case with ...
Сторінка 113
... transformer , Am the ammeter , V the voltmeter , G ' G ' ground detectors , and C C C fuses in the main lines . It will be noticed here that there is only one ammeter , and this is permanently connected in one of the main lines . The ...
... transformer , Am the ammeter , V the voltmeter , G ' G ' ground detectors , and C C C fuses in the main lines . It will be noticed here that there is only one ammeter , and this is permanently connected in one of the main lines . The ...
Сторінка 115
... transformers in the manner shown . Suppose generator I is connected with the bus bars , then the cur- rent from it at the instant when it flows upward in the left side line will traverse the primary coil of I in the го www www 0- wwww ...
... transformers in the manner shown . Suppose generator I is connected with the bus bars , then the cur- rent from it at the instant when it flows upward in the left side line will traverse the primary coil of I in the го www www 0- wwww ...
Сторінка 116
... transformers are traversed by current from generator I , they will remain dark when the cur- rent comes from generator 2 , providing the two machines . are generating currents that are in phase . If the con- nections of H ' are reversed ...
... transformers are traversed by current from generator I , they will remain dark when the cur- rent comes from generator 2 , providing the two machines . are generating currents that are in phase . If the con- nections of H ' are reversed ...
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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