Switchboards for Power, Light and Railway Service, Direct and Alternating Current, High and Low TensionDerry-Collard Company, 1905 - 192 стор. |
З цієї книги
Результати 1-5 із 22
Сторінка 47
... ground or short circuit in one to interfere with the operation of the others ; hence , if each system is so arranged as to be disconnected entirely , the operation will be more satisfactory . Twelve switches here . Fig . 22 shows an ...
... ground or short circuit in one to interfere with the operation of the others ; hence , if each system is so arranged as to be disconnected entirely , the operation will be more satisfactory . Twelve switches here . Fig . 22 shows an ...
Сторінка 53
... ground detector , and is simply an instrument provided to test the insulation of the circuits before the current is turned on . The ground detector is not kept in service all the time , but is gen- erally connected permanently either to ...
... ground detector , and is simply an instrument provided to test the insulation of the circuits before the current is turned on . The ground detector is not kept in service all the time , but is gen- erally connected permanently either to ...
Сторінка 77
... ground , and even when it is A can be grounded accidentally very easily ; hence , if there were no insulation between H and A there would be great liability of grounding the circuit . In a case where B is supported from the marble slab ...
... ground , and even when it is A can be grounded accidentally very easily ; hence , if there were no insulation between H and A there would be great liability of grounding the circuit . In a case where B is supported from the marble slab ...
Сторінка 85
... the back of the slabs after they have been well dried out by heat . Fig . 39 shows the back of a switchboard arranged for two generators connected in the three - wire system . The RHEOSTAT 이이이 GROUND WIRE о AMMETER RHEOSTAT 65.
... the back of the slabs after they have been well dried out by heat . Fig . 39 shows the back of a switchboard arranged for two generators connected in the three - wire system . The RHEOSTAT 이이이 GROUND WIRE о AMMETER RHEOSTAT 65.
Сторінка 86
William Baxter. RHEOSTAT 이이이 GROUND WIRE о AMMETER RHEOSTAT The back of the switchboard . leads from the generators. The Derry Collard Co Figure 40 . Figure 39. Back of switchboard arranged for two generators and three - wire system .
William Baxter. RHEOSTAT 이이이 GROUND WIRE о AMMETER RHEOSTAT The back of the switchboard . leads from the generators. The Derry Collard Co Figure 40 . Figure 39. Back of switchboard arranged for two generators and three - wire system .
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Загальні терміни та фрази
alternating current ammeter amperes angle armature arranged branch circuits break switches bus bars cables carbon 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 G Figure ground detector hence increased independent Independent Circuits instruments insulation lamps lever light board lightning arrester located lower machines magnet main switch marble slabs means meter nected Non-arcing metals operated panel Phase Switchboard rent resistance rheostats safety fuse seen series coils set of busses short circuit shown in Fig shows shunt single phase sockets spark street mains switch blade synchronizing three phase three-wire system tion transformers two-pole upper vapor vertical voltage voltmeter volts wattmeter Westinghouse