Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / jagadisha.n. bmsit
At the starting motor needs high torque to reach rated speed
so it will required more flux to get that torque hence it
takes more current from the supply, but the winding
resistance is too low to withstand this current.
we know that
in star phase current = sqrt(line current)
In delta line current = phase current
So current is reduced by sqtt(3) times in star so motor is
first connect to star and then delta
| Is This Answer Correct ? | 17 Yes | 16 No |
Post New Answer View All Answers
How colour picturetube works & how many year it will works.
which connection is safer series or parallel?usually which connection we prefer at home?
How energy is generated in hydroelectric power plant?
what is effect of leading power facter on the system and billing
How do you determine the size of transformer radiators in a transformer?
is it value of power factor is more than unit. whats effects in the source supply
how to select the no. of brushes in a lap winding?
why cable i burning without tripping. how can protect led street lights
What kind of preventive maintenance are there for transformer?
How grounding is different than earthings?
What are the advantages and disadvantages of negative feed back?
What is effect of harmonic current (Draw by VFD) on power system/ electrical Equipments ?
How select ELCB for 32amp. socket having quantity 12Nos. We have to do this wiring in PLANT. Please Also explain the incoming cable specification.
WHat is the general checks required for Dry type transformers
what is a types of short circuit and what is a types of distance protection tests
