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 22
Сторінка 9
... indicated , and this brought into use the 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 ...
... indicated , and this brought into use the 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 ...
Сторінка 11
... indicates the e m f developed , and , as will be noticed , it is connected directly across the main lines by wires g g . At Am , an ammeter is connected in series in the line N , and it measures the strength of the current in amperes ...
... indicates the e m f developed , and , as will be noticed , it is connected directly across the main lines by wires g g . At Am , an ammeter is connected in series in the line N , and it measures the strength of the current in amperes ...
Сторінка 20
... indicate the circuit wires it will be seen that the line runs from the right side brush of the gen- erator to the circuit breaker , and from the central con- tact of this to the ammeter , by wire a , and thence , by wire b , to wire d ...
... indicate the circuit wires it will be seen that the line runs from the right side brush of the gen- erator to the circuit breaker , and from the central con- tact of this to the ammeter , by wire a , and thence , by wire b , to wire d ...
Сторінка 31
... the circuits must be as indicated in Fig . 17. This dia- gram shows the various parts without any reference to systematic arrangement . We have , as in the case of the Two - pole switches . single generator , a field 31.
... the circuits must be as indicated in Fig . 17. This dia- gram shows the various parts without any reference to systematic arrangement . We have , as in the case of the Two - pole switches . single generator , a field 31.
Сторінка 38
... indicate the voltage between the two busses 1 and 2. When a single voltmeter is provided , it is arranged so as to be con- nected with each generator independently so as to be used in adjusting the machines in the act of starting . Only ...
... indicate the voltage between the two busses 1 and 2. When a single voltmeter is provided , it is arranged so as to be con- nected with each generator independently so as to be used in adjusting the machines in the act of starting . Only ...
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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