Switchboards for Power, Light and Railway Service, Direct and Alternating Current, High and Low TensionMcGraw pub. Company, 1906 - 186 стор. |
З цієї книги
Результати 1-5 із 29
Сторінка 21
... switches , circuit breaker and instruments are on the front . The field reg- ulator is also placed on the back , and only the handle projects through to the front . If it is desired to stop the current , the switch S is opened , and ...
... switches , circuit breaker and instruments are on the front . The field reg- ulator is also placed on the back , and only the handle projects through to the front . If it is desired to stop the current , the switch S is opened , and ...
Сторінка 32
... break- ers , and at s a switch for opening the circuit of the left- side generator , while at s ' is a similar ... switches , it is necessary to provide switches that com- bine s and s ” in one , so that by the movement of a single ...
... break- ers , and at s a switch for opening the circuit of the left- side generator , while at s ' is a similar ... switches , it is necessary to provide switches that com- bine s and s ” in one , so that by the movement of a single ...
Сторінка 58
... switches . These circuit breakers are of the two- pole independent action type . They are called two - pole because they open the circuit on both sides ; thus if the circuit breaker ... break the connection between the board and the two wires ...
... switches . These circuit breakers are of the two- pole independent action type . They are called two - pole because they open the circuit on both sides ; thus if the circuit breaker ... break the connection between the board and the two wires ...
Сторінка 84
... break out . The bottom of a switchboard should be of such height that the attendant can see the lower instruments or switches without inconvenience , and the top should be of such a height that the highest instruments can be reached ...
... break out . The bottom of a switchboard should be of such height that the attendant can see the lower instruments or switches without inconvenience , and the top should be of such a height that the highest instruments can be reached ...
Сторінка 117
... stop and the lamps will remain dark or bright continu- ously , according to how the ... switch of 2 can be closed , and thus the generator is connected with the bus bars in parallel with 1. After the two generators are connected the switches ...
... stop and the lamps will remain dark or bright continu- ously , according to how the ... switch of 2 can be closed , and thus the generator is connected with the bus bars in parallel with 1. After the two generators are connected the switches ...
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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 located lower machines magnet main switch marble slabs means meter nected opening the circuit operated panel placed plugs rent resistance rheostat safety fuse seen series coils set of busses short circuit shown in Fig shows shunt single phase 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