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 13
Сторінка 11
... series in the line N , and it measures the strength of the current in amperes . At R , the field regulating rheostat is located , being placed as shown by wires f f in series in the shunt field coil circuit . Am . e N · m g g Σ ( II.
... series in the line N , and it measures the strength of the current in amperes . At R , the field regulating rheostat is located , being placed as shown by wires f f in series in the shunt field coil circuit . Am . e N · m g g Σ ( II.
Сторінка 57
... amperes . If there are four machines , these can be divided into two sets of two machines , and each set can be connected with equalized wires to an independent set of bus bars , and then these two sets of busses can be connected with a ...
... amperes . If there are four machines , these can be divided into two sets of two machines , and each set can be connected with equalized wires to an independent set of bus bars , and then these two sets of busses can be connected with a ...
Сторінка 58
... amperes each and 250 volts electromotive force so as to distribute into a system of circuits , twelve of which are controlled directly and independently from the board , the others be- ing also controlled from the board , but not ...
... amperes each and 250 volts electromotive force so as to distribute into a system of circuits , twelve of which are controlled directly and independently from the board , the others be- ing also controlled from the board , but not ...
Сторінка 62
... amperes , and from this it can be seen that to connect ammeters of large capacity directly in the circuit would require the use of large con- ductors . When the shunts St are used , the current pass- ing to the instrument need not be ...
... amperes , and from this it can be seen that to connect ammeters of large capacity directly in the circuit would require the use of large con- ductors . When the shunts St are used , the current pass- ing to the instrument need not be ...
Сторінка 68
... amperes ; hence , 200 amperes would represent fifty horse - power . If the capacity of the plant is 500 horse - power , the amperes will be about 2,000 , and the cross section of the conductors will have to be from two to three square ...
... amperes ; hence , 200 amperes would represent fifty horse - power . If the capacity of the plant is 500 horse - power , the amperes will be about 2,000 , and the cross section of the conductors will have to be from two to three square ...
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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