In a 3 phase induction motor(without connecting supply) if we
rotate its rotor by hand and check resistance of stator
winding at motor terminal box its resistance varies why ??
Answer Posted / k.prakashchandra
Probably due to the voltage induced by residual magnetism of
the rotor
Is This Answer Correct ? | 10 Yes | 5 No |
Post New Answer View All Answers
What is the transfer function?
how we can do the insulation on secondary of ct explain and so that tan delta will within limit
use of PIR in ehv breaker
description about dry type transformers
What is precision of a measurement?
why are the maintaine power factor and how can this control and this is how work.
give me applications of sequence bridges . (used in 3 phase un balanced systems)
dear sir/madam i want to get some knowledge about RRB EXAMINATION(section engineer) 1- what is minimum cut off 2- wht portion is major portion . 3- can any body provide Sample paper. thanks & regards ashish
How we can recongnise the phase displacement of transformer connection between primary & scondary...plzzz explain it with example.........
How u can give the overload setting to any motor protection relay for a HT motors with formula and Example?
What are the types of the glands and difference between single and double compression type of cable Glands.
How to decide cable tray size?
WHY IN AC DRIVES,INPUT PHASE CURRENT SHOW UNBALANCE?
which capacity of RCCB used for five thousand watt electricity load?
in 1-phase 230v,how in 3-phase 440v. in each phase in between 230v.