In a 3 phase squirrel cage induction motor why does rotor
rotate?
will 3 phase transformer rotate like a motor if it is
placed on bearings and powered up? give reason
Answer Posted / surendra verma
For rotating a machine there will need some torque,and it is
rule in machine that to provide torque there should be
necessrly two interactive relative stationry field ,niether
avg.torque will be zero,now in case of transformer one field
is present on time varying axis; where is other field with
which first field will interact..no where...so it is totally
ridiclous to ask such silly questin in which only one field
is available..what can i talk about 120 phase displacement
concept of space winding when this primary conditon is not
satsfied itself.......
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What are differences between Voltage, EMF & Potential difference ?
How cmd is calculated in case of energy neters
How LT megger works ?
description about dry type transformers
is it possible to start a motor in felid connected to a remote mcc
What will be electrical cost per sqft for IT building (basebuild and fitout)and for residential township?
hi frds, i m electrical engineer.can i get cdr for electrical engineer if u have then send me on my mail id its jayesh_ee88@yahoo.com.please help me frds
What is the difference between AC and DC injection methods for rotor earth fault protection
How many devices can be connected in one zone of FACP
Why is back emf used for a DC motor? Highlight its significance.
how braking & making capacity of circuit breaker are calculated?
How can we calculate ac current from the given DC current when AC voltage is given?
what is the string efficiency
How many methods use the load flow solution?
Mention what are the types of semi-conductors?