3 ph motor connected in star delta starter. when we start the motor it run in

3 ph motor connected in star delta starter. when we start
the motor it run in star but when in is going in delta it
trips the main incoming supply. why?

Question Posted / guest

3 Answers
10104 Views
Bajaj Hindusthan, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

3 ph motor connected in star delta starter. when we start the motor it run in star but when in is ..

Answer / deepak r thakur

simple when motor start in star three phase going to
winding correctly but when its going in delta motor two
winding connect with 440votl but 3rd winding connect same
phase so motor going in singal phasing & its get heavy
currunt it trips the main incoming supply.

Is This Answer Correct ?

3 Yes

0 No

3 ph motor connected in star delta starter. when we start the motor it run in star but when in is ..

Answer / rajesh kumar sharma

Two conterctor hold on star running time after some time a conteractor whose shrt three terminals has unhold and delta conteractor is hold it change only one sccond time.
if the timer switch is not working than creat a problam.

Is This Answer Correct ?

2 Yes

2 No

3 ph motor connected in star delta starter. when we start the motor it run in star but when in is ..

Answer / anurag tiwari

Dear friend,
there are three point u have to check
1)first u check the motor winding.
2)check the timer and set the delta time.(appox 6sec).
3)If u are using mpd relay .May be your CBCT is saturated.

Is This Answer Correct ?

0 Yes

0 No

Post New Answer

More Electrical Engineering Interview Questions

Which one is more accurate servo or stepper motor and why?

2 Answers BARC, HPT,

What is the function of Igniter in 250 watt HPMV street light?

1 Answers

how to identify conection leads of an unknown electric motor

0 Answers

If I want to connect a capacitor bank on the HT side of a 11kV/415V, 3 phase delta-star distribution transformer to supply Reactive power to it..what practical specifications of a Capacitor bank that can i've??please reply..

0 Answers

what are the electrical components required for run the motor pump including safety components plz explain it how we can use such components .

2 Answers

what is a pilot wiring and whys that called a pilot wiers

0 Answers

What is meant by Active and reactive power?

8 Answers Micron Electricals, SVIT,

why the transformer has no starter

2 Answers NTPC,

what are the standard values for resistances(Megger testing) between L&N, L&E and N&E (L=Live,N=Neutral, E=Earth)?

1 Answers

Why compensation is necessary in feedback control system?