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 6-10 із 17
Сторінка 80
... of Plastic Alloy , the contact surfaces may be reduced to one square inch per 1000 amperes without danger of heating and a permanent joint of very low resistance obtained . Switchboard construction . If the marble slabs join . These 80.
... of Plastic Alloy , the contact surfaces may be reduced to one square inch per 1000 amperes without danger of heating and a permanent joint of very low resistance obtained . Switchboard construction . If the marble slabs join . These 80.
Сторінка 85
... by varnishing 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 + + GEOSTAT GROUND WIRE RHEOSTAT 85.
... by varnishing 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 + + GEOSTAT GROUND WIRE RHEOSTAT 85.
Сторінка 156
... heat developed at the points of contact may be enough to absorb a considerable amount of energy and in extreme cases , may even result in burn- ing out the switch , with more or less serious results . By providing three blades side by ...
... heat developed at the points of contact may be enough to absorb a considerable amount of energy and in extreme cases , may even result in burn- ing out the switch , with more or less serious results . By providing three blades side by ...
Сторінка 161
... heat is developed at these points , and for this reason it is desirable to have as much metal near the contacts as possible . One way of increas- ing the bulk of metal is shown in Fig . 126. It is very commonly used in switches of the ...
... heat is developed at these points , and for this reason it is desirable to have as much metal near the contacts as possible . One way of increas- ing the bulk of metal is shown in Fig . 126. It is very commonly used in switches of the ...
Сторінка 183
... heat generated by the arc formed between the carbon points in case the generator current follows up the lightning discharge , ex- Arrester for alternating circuits . pands the air within the. Figure 148. Westinghouse arrester . Figure ...
... heat generated by the arc formed between the carbon points in case the generator current follows up the lightning discharge , ex- Arrester for alternating circuits . pands the air within the. Figure 148. Westinghouse arrester . Figure ...
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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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