Switchboards for Power, Light and Railway Service: Direct and Alternating Currents, High and Low TensionNorman W. Henley, 1910 - 192 стор. |
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Результати 1-5 із 44
Сторінка 11
... means of which the pressure may be increased or decreased without changing the velocity . This device is simply a resistance , or rheostat , and is called a field regulator . If the voltage of the generator is too high , a sufficient ...
... means of which the pressure may be increased or decreased without changing the velocity . This device is simply a resistance , or rheostat , and is called a field regulator . If the voltage of the generator is too high , a sufficient ...
Сторінка 27
... means that will 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 ...
... means that will 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 ...
Сторінка 36
... means of the switch s , and also with the busses N and P , as is clearly shown by the wires v v , v ' v ' , v " v " . Under the ordinary running conditions , the voltmeter is connected with the busses , and the switch s , when turned to ...
... means of the switch s , and also with the busses N and P , as is clearly shown by the wires v v , v ' v ' , v " v " . Under the ordinary running conditions , the voltmeter is connected with the busses , and the switch s , when turned to ...
Сторінка 38
... means of which the ammeter may be connected with each generator independently , when desired , so that the strength of each current may be determined . While we have shown two ammeters in Fig . 21 we have only pro- vided one voltmeter ...
... means of which the ammeter may be connected with each generator independently , when desired , so that the strength of each current may be determined . While we have shown two ammeters in Fig . 21 we have only pro- vided one voltmeter ...
Сторінка 40
... means of the field regulator to the proper point . This much being done , the circuit breaker of the second ma- chine is closed , and then the voltage developed by the armature is indicated notwithstanding that the main switch is opened ...
... means of the field regulator to the proper point . This much being done , the circuit breaker of the second ma- chine is closed , and then the voltage developed by the armature is indicated notwithstanding that the main switch is opened ...
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Загальні терміни та фрази
50 cents alternating current ammeter amperes arc light armature arranged break switches bus bars cables circuit breaker close the circuit Concrete conductors connected with bus construction contacts cross section current passes Derry Collard Derry Collard Co desired devices diagram distributing circuits double throw dynamo Electric erator feed field coils field regulator Figure fully illustrated fuse gas engines ground detector HISCOX inch instruments insulation lamps lightning arrester located Locomotive machine magnet main switch manufacture marble slabs mechanical meter motors nected O'CONOR SLOANE operation panel parallel Phase Switchboard plugs practical rent resistance rheostats safety fuse seen series coils set of busses short circuit shown in Fig shows shunt side sockets spark steam street mains synchronizing terminals three phase three-wire system tion transformers valve vapor vertical voltage voltmeter volts wattmeter Westinghouse wires
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