An elementary book on electricity and magnetism and their applications . l years the New York,New Haven, and Hartford has been using locomotivesdriven by single-phase series motors. Although this type ofmotor seems to be fairly successful, it is inferior to the direct-current series motor, and so is not likely to come into exten-sive use. It must, however, be remembered that, although the motor is not so efficient and reliable as the d-c. seriesmotor, yet the losses in the distributing system for the are much less than those of a d-c. system. It has beenestimated that
An elementary book on electricity and magnetism and their applications . l years the New York,New Haven, and Hartford has been using locomotivesdriven by single-phase series motors. Although this type ofmotor seems to be fairly successful, it is inferior to the direct-current series motor, and so is not likely to come into exten-sive use. It must, however, be remembered that, although the motor is not so efficient and reliable as the d-c. seriesmotor, yet the losses in the distributing system for the are much less than those of a d-c. system. It has beenestimated that probably not more than 45 per cent of the powergenerated in the main station is delivered to the ordinary street-car wheels. 278. Another commutator type of motor. There is a formof induction motor, called the Wagner single-phase motor(Fig. 283), which uses a rotor fitted with a commutator andbrushes quite similar to a direct-current motor. After themotor reaches the proper speed, all of the commutator barsare automatically short-circuited and the brushes lifted from.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmagnetism, bookyear19
