i want to know about for what reason we are using star
delta starter? how it works? what are the advantages?
Answers were Sorted based on User's Feedback
Answer / prashant kaushik
Star Delta use for starting of motor as during starting
motor take high current so we can reduce it through using
star delta starter.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / amit agrawal
star delta starter are used for controlling starting current. as we know, when we start any motor/pump then motor takes 6 times if rated current as there is no back emf ins tarting(speed zero).
If we apply star circuit then the voltage will be one third of delta circuit, in the same way current will be reduced.
This is the answer.
One more thing that all the HT(6.6KV) motors also be in star to control the starting current and to save the cost of insulation for both motor and connected cable.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / kishor
starters are used for the purpose of to reduse the starting current...
in star-delta starter motor starts in star connection at this time motor voltage reduses than 1/root3...
there fore current is also reduse 1/root3...
and after some time motor is automatically convert to delta mode through timer....
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / prabhakar
Stard delta starters are to avoid accident it works with
contactors it save energy.
do you want to know what is star delta
the motor whih has dol connection will consum more current
and the motor which as star connection will consume less
corrent that is the reson we use motors and star delta
starters
| Is This Answer Correct ? | 0 Yes | 8 No |
kVA rating of open delta connected transformer is _____% kVA rating of delta/delta connection A 50 B 70.7 C 57.7 D 75.7
In PT the coil is wound on?
what is vtg limit of earth and neutral at transformer side?
Why the isolation treasforfer are connected at out put of the ups ig 200kva ??????????????????
why we remove capacitor connection in 3 ph Induction Motor while taking noload test.
Explain mechanical rotational system?
what is the minimum winding resistance of 30hp compressor, to run or to switch on
when we change tha taps from 1-16 in 100mva tr whether a constant voltage avaliable till it reaches tap 16 or voltage change as per taps change
howmuch current can carry the 2.5Sqmm copper cable?
in one substation we have two power transformers of 100mva,75mva capacity.statoin load is155mva.how much each tranformers share the load????
6 Answers TNEB Tamil Nadu Electricity Board,
How do you change an AC motor to DC? why there is only 50 Hz frequency in india & not other?
how to control the speed to switched reluctance motor
Civil Engineering (5086)
Mechanical Engineering (4453)
Electrical Engineering (16638)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)