New Catechism of Electricity: A Practical TreatiseT. Audel, 1896 - 541 стор. |
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Сторінка 33
... load on its armature , day by day until it bears a load which at the outset it could not have done . Nevertheless if the load is so increased that the armature is torn off , the power of the magnet falls at once to its original value ...
... load on its armature , day by day until it bears a load which at the outset it could not have done . Nevertheless if the load is so increased that the armature is torn off , the power of the magnet falls at once to its original value ...
Сторінка 171
... load upon the dynamos varies , moving round in the direction of rotation as the load increases , and vice versa . It is necessary , therefore , in order to avoid sparking , to shift the brushes bodily upon the commutator from time to ...
... load upon the dynamos varies , moving round in the direction of rotation as the load increases , and vice versa . It is necessary , therefore , in order to avoid sparking , to shift the brushes bodily upon the commutator from time to ...
Сторінка 179
... load and the nature of the oil used , but from 3 to 12 drops per minute of any ordinary heavy hydro carbon oil is generally sufficient for a load varving from 6 to 30 horse - power . Starting Dynamos . - Having attended to the above pre ...
... load and the nature of the oil used , but from 3 to 12 drops per minute of any ordinary heavy hydro carbon oil is generally sufficient for a load varving from 6 to 30 horse - power . Starting Dynamos . - Having attended to the above pre ...
Сторінка 182
... load . This lead in all good dynamos is very small , and varies with the load and class of machine . The best lead to give to the brushes can in all cases be found by rotating the rocker and brushes in either direction to the right or ...
... load . This lead in all good dynamos is very small , and varies with the load and class of machine . The best lead to give to the brushes can in all cases be found by rotating the rocker and brushes in either direction to the right or ...
Сторінка 183
... load , and in the opposite direction with a decrease of load . In cases where the dynamos are subjected to a rapidly varying or fluctuating load , it is of course not possible to con- stantly shift the brushes as the load varies ...
... load , and in the opposite direction with a decrease of load . In cases where the dynamos are subjected to a rapidly varying or fluctuating load , it is of course not possible to con- stantly shift the brushes as the load varies ...
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Загальні терміни та фрази
adjusted alternating current ammeter amperes apparatus arc light armature arranged bars battery bearings belt BOARD FIRE UNDERWRITERS Boiler brushes carbon cause cell commutator conducting conductors connected construction copper core COUPLING OF DYNAMOS current flowing current of electricity cut-out direct current direction disconnection drum electric current electric energy ELECTRIC LIGHTING ELECTRIC POWER TRANSMISSION ELECTRICAL RESISTANCE electro-magnet electromotive-force exciting fault field coils field magnet fuse galvanometer hand regulator heat incandescent inch insulation iron lamps liable lines of force load machine magnetic field metal method motion motor NATIONAL BOARD FIRE needle parallel passing pipes placed plate points pole pieces position practical pressure produced pulley QUES resistance rheostat ring rotating RULES AND REQUIREMENTS screw segments shaft short circuit shown in Fig solder sparking speed strength surface switch telegraph telephone terminals tion tube vibration voltage voltmeter volts winding WIRING RULES wound zinc