which motor is used in electric train...???????
Answer Posted / naresh
3phase induction motor becouse in dc motors there are
brushes so there will be brush loss i.e frictional losses
and also it require more maintanance hence we can use
3phase motors
and also there will be another alternative brushless dc
motors
Is This Answer Correct ? | 1 Yes | 1 No |
Post New Answer View All Answers
Write a note on materials used as a fuse element.
for a 400kv t/m line with 10 ampere current will corona occur?
why ahould you show client/engineer activities clearly on the project plan
What are motor generator sets and explain the different ways the motor generator set can be used ?
regarding safety what would u consider the most important rules to observe when inspecting electrical equipment?
different aspects of voltage stability
What is the use of Surge Capacitor in LAVT?
how many joints are allowed in underground HT cable of 1 KM
Why we cant store an ac power. If we coo store in which device we can?
if you are in a software company,then why do you want to come in a core company like sail, ntpc(where lots of trouble like tension but you have a good life in a it company) ?
What is the diffrence (Technical & Construction ) between CBCT & Normal CT?
What is the effect on power factor, shown by a trivector meter; incase of reverse phase sequence. If the power factor of a system is lag what meter will show in case of reverse phase sequence connected to the meter. and What in case of lead.
how we can find of current direction(supply comming/out going direction) when a transmission line passing through sides.
What determines the thickness of the lamination or stamping?
i need previous entrence exam papers of nhpc.