why are the a.c.series motors preferred for electric
traction
Answers were Sorted based on User's Feedback
Answer / raghavendra
its not ac series motor but it is the DC SERIES motor which is used for traction and for variable speed mechanisms because of its HIGH STARTING TORQUES. The main applications of this is in train engines
Is This Answer Correct ? | 6 Yes | 0 No |
Answer / robert d barnett
I'm not really certain that a.c.series motors ARE preferred for electric
traction. It depends on the situation. There are of course, both AC and DC series motors which are virtually the same. The difference is the inductive reactance of the series field when supplied with AC requires design steps to be taken to correct for this phenomenon. The advantage of using AC is the simplicity of the supply system for long distance systems. A transformer could be put on board the locomotive to reduce the transmission voltage (typ 11,000V) to motor voltage. A DC motor is a similar size rail network would require a substation with a transformer and some means of rectification to DC plus the control system and inherent maintenance costs. It's a bit of a simplification but trolley lines and most interurbans were DC and electric railroads were AC.
Is This Answer Correct ? | 2 Yes | 0 No |
Bcoz of High troque and also ac supply direct given in series ac. Motor in case of dc motor ac. Supply convert in dc.. Is more expensive..nd switching controling handling is easy to Ac.
Is This Answer Correct ? | 0 Yes | 3 No |
WHAT HAPPENED DC SERIES MOTOR FIELD WINDING OPEN. CAN POSSIBLE.
If you have an earth with pilecap then your resistance is really low. why and how?
what is the difference between megger and earth resister ??
which circuit breaker enclosure is best for maintenance guy? 16 bolt & 20 bolt squre or 16,20 bolt hinge
what is the different between second harmonics and third harmonics ?
For a DY11 lighting Transformer on primary side whee to connect fourth lead? from nuetral or from ground?
What is the function of the exiter in DG.
How npn and pnp transistor works
about transformer oil material & Test name for the measurement of its dielectric strength & wht will u do if its dielectric strength goes low ?
what is principle of DC machines?
5 Answers APTransco, NTPC, Wipro,
What happen if ac supply is fed to rotor of the alternator?
Off-circuit Tap changers in distribution transformer required