what will be the motor terminal box connection arrangement
(star or delta). on what basis it decided?
Answers were Sorted based on User's Feedback
Answer / milinda4p
it may vary depending on the requirement of the
motor(whether high torque or high speed).but for an example
in a 3 phase induction motor where an high torque is needed
the rotor windings are first connected in star to get rid of
the large current(inrush) at the starting. & then after
starting it is set to delta to have a large current (because
then the voltage across a single winding is square root of 3
times that of in star=> square root 3 times larger current
in single winding) (to have a higher torque)
Is This Answer Correct ? | 3 Yes | 1 No |
it is standard 6 terminal with 3Starting and 3ending points
of windings. Plz refer the below link for connection
diagram.
for low voltage motors,
Upto 2HP/1.5kW - star
above 2HP/1.5kW - Delta
With the same winding, power of the motor varies 3:1 ratio
in Delta to star.
http://www.elprocus.com/wp-
content/uploads/2013/09/Induction-motor-winding-terminals-
connected-in-star-and-delta-configuration.jpg
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / raj.s
it depends on motor rating if it star typr connection will
made by shorting one terminal bed fully,
if it delta motor then accoding to diagram terminal
connections will occur in terminal box.
its just a connector ,we can made eithr star or delta.
Is This Answer Correct ? | 0 Yes | 2 No |
how do you reduce the skin effect
what exactly commisioning work does in electrical site work... LT side?..
What is a roll of a adopter pannel in buscoupler pannel????
When a fourth resistor is connected in series with three resistors, the total resistance
difference between generator and alternator
Should transformer earthing pit, to be connect to earthing mat in Substation
what will happen if we directly give supply to rotor of a induction motor?
why we used dc supply for field in dg set
0 Answers Hindusthan National Glass,
why extension in transmission tower is made?
IN star -delta motors normally first operated in star mode {absulated given (r-y-b) phases after one miute change in delta mode in this case i am change phase sequience for example R -PHASE TO CHANGE Y-PHASE ;Y-PHASE TO CHANGE R-PHASE SO THIS TIME MOTOR WILL HAPPEN RUNNIG MODE EIGHTER(OR) STOP MODE(TRIP MODE)
placing earthing pit in pathway is correct or wrong??. placing earthing wireGI1/18 inside walls is correct or wrong?. explain!!!
What are insulation classes? Tell examples of each of them.