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 33
Сторінка 8
... the switch for opening the line came into use . Very early in the history of " arc " lighting it was discovered that unless the current remained practically uniform , the Voltmeter and ammeter . lamps would not burn steadily ; 8.
... the switch for opening the line came into use . Very early in the history of " arc " lighting it was discovered that unless the current remained practically uniform , the Voltmeter and ammeter . lamps would not burn steadily ; 8.
Сторінка 9
... ammeter . With incandescent lighting it was soon found that uniformity of pressure was the point of vital importance , and thus the voltmeter was introduced in such installations . In " arc " lighting the current remains of constant ...
... ammeter . With incandescent lighting it was soon found that uniformity of pressure was the point of vital importance , and thus the voltmeter was introduced in such installations . In " arc " lighting the current remains of constant ...
Сторінка 11
... ammeter , a voltmeter and a switch to open the circuit . To this we should also add switches for opening independently the several branch circuits . From Fig . I an idea of the de- vices and the manner in obtained . which they are ...
... ammeter , a voltmeter and a switch to open the circuit . To this we should also add switches for opening independently the several branch circuits . From Fig . I an idea of the de- vices and the manner in obtained . which they are ...
Сторінка 15
... where the ca- pacity is great , the series coils are placed in parallel , as in Fig . 10. In both these diagrams it will be seen that the voltmeter and the ammeter are connected in the A multi - polar generator . same way as in 15.
... where the ca- pacity is great , the series coils are placed in parallel , as in Fig . 10. In both these diagrams it will be seen that the voltmeter and the ammeter are connected in the A multi - polar generator . same way as in 15.
Сторінка 16
... ammeter being in series in one of the mains . It may N Am M с a M b d K Figure 9 m M h g The Derry Collard Co. Compound connections for multi - polar generator . be well to mention here that it is immaterial in which one of the lines ...
... ammeter being in series in one of the mains . It may N Am M с a M b d K Figure 9 m M h g The Derry Collard Co. Compound connections for multi - polar generator . be well to mention here that it is immaterial in which one of the lines ...
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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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