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 30
Сторінка 8
... necessary to discontinue the lights , the dynamo was stopped . Before long it became evident that a switch introduced into the circuit would be a con- venience , as then it would be possible to put out the lights without stopping the ...
... necessary to discontinue the lights , the dynamo was stopped . Before long it became evident that a switch introduced into the circuit would be a con- venience , as then it would be possible to put out the lights without stopping the ...
Сторінка 27
... necessary . Operating Generators in Parallel . When it is desired to operate two or more generators in parallel , that is , so as to feed into the same system of external wires , the simplicity of Fig . II cannot be preserved , for then ...
... necessary . Operating Generators in Parallel . When it is desired to operate two or more generators in parallel , that is , so as to feed into the same system of external wires , the simplicity of Fig . II cannot be preserved , for then ...
Сторінка 29
... or more generators of this lat- ter type are connected in parallel it is necessary to so con- nect the series coils that the strength of current passing through them will be the same in all the machines . This N Am Am A m M P 20 O A 29.
... or more generators of this lat- ter type are connected in parallel it is necessary to so con- nect the series coils that the strength of current passing through them will be the same in all the machines . This N Am Am A m M P 20 O A 29.
Сторінка 32
... necessary , therefore , to provide the additional switch s " . When the generators are running , it is not safe to open the switch s " in the equalizing wire before the s switch is opened , and when it is desired to cut the second ...
... necessary , therefore , to provide the additional switch s " . When the generators are running , it is not safe to open the switch s " in the equalizing wire before the s switch is opened , and when it is desired to cut the second ...
Сторінка 34
... necessary when two or more generators are operated in parallel , to connect the entering ends , as well as the leaving ends , of all the series coils , so that the current may divide equally between all the generators . In Fig . 18 the ...
... necessary when two or more generators are operated in parallel , to connect the entering ends , as well as the leaving ends , of all the series coils , so that the current may divide equally between all the generators . In Fig . 18 the ...
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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 four fuse ground detector h Figure hence increased independent instruments insulation lamps lever light board lightning arrester lightning discharge located lower machines magnet main switch marble slabs means meter nected opening the circuit operated panel placed plugs rent resistance rheostats safety fuse seen series coils set of busses short circuit shown in Fig shows shunt sockets spark street mains switch blade switch is closed synchronizing three phase three-wire system tion transformers two-pole upper vapor vertical voltage voltmeter volts wattmeter Westinghouse