Difference between DOL starter & star Delta Starter? And where the Dol sta

Difference between DOL starter & star Delta Starter? And
where the Dol starter used upto how much HP and whereas
Star Delta vice versa?

Question Posted / guest

3 Answers
12013 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

Difference between DOL starter & star Delta Starter? And where the Dol starter used upto how m..

Answer / tamil arasu

DOL STARTER STARTING CURRENT IS HIGH.DOL HAVE IN STARTING
TIME MORE THEN 3 TIMES OF NOMINAL CURRENT.BUT S/D STARTER
STARTING CURRENT IS LOW.DOL STARTER NEED 1 CONTACTOR AND
1OLR, S/D NEED 3CONTACTORS,TIMER AND 1OLR FOR FULLY
AUTOMATIC.SEMI S/D NOT NEED FOR TIMER.

UPTO 5 H.P DOL STARTER USED.AND MORE THEN 5H.P USED S/D
STARTER.BUT DOL STARTER ALSO USED FOR ABOVE 15 H.P
ACCORDING TO THE LOAD.INCASE OF WE USING 10H.P MOTOR FOR
WATER PUMP WE HAVE SELECTING DOL AND WE USING FOR SAME H.P
MOTOR FOR MILL WE SELECTING STAR/DELTA.

Is This Answer Correct ?

24 Yes

1 No

Difference between DOL starter & star Delta Starter? And where the Dol starter used upto how m..

Answer / govindaraj

upto 5 hp dol starter is used.

upto 25 hp star delta starter is used

Is This Answer Correct ?

16 Yes

11 No

Difference between DOL starter & star Delta Starter? And where the Dol starter used upto how m..

Answer / guest

On DOl Starter it needs one Magnetic Contractor and in Star
Delta Starter it needs three magnetic Contractor

Is This Answer Correct ?

11 Yes

8 No

Post New Answer

More Electrical Engineering Interview Questions

WHAT MEANT BY SEVICE FOCTOR?

2 Answers

How to see the inductance in a transmission lines

0 Answers

Why the underground cables will Punchar? or what is the reason to burst the underground cables?

1 Answers

what do you mean by leading power factor & lagging power factor

13 Answers Suzlon,

What is dc current source? Differentiate between ideal and non ideal current sources?

0 Answers

sir pls tell me . our ct specifications are 120/5 ,2 core , 0.2 and 5p10 class , 30va and 30va buden. insted of 30 va i want use 15 va. can i use?

0 Answers

how generator load test is conducted?what are the steps?

0 Answers

why generator is design for lagging P.F(power factor)?

3 Answers BSES,

There are two nos of 33Kv/11Kv 5MVA transformers conecting through HT cable from substation having metering at substation itself.One transformer used at a time another remains stand by.Further 11 nos of 11Kv/440V transformers are attached on it and each transformer is having its own Power factor correction panel.Now one 33/11Kv transformer at no load condition/Stand by condition is having power factor in leading side upto 0.21 and while when another tranformer at same situation have power factor in lagging 0.42. Now one thing is clear that transformer one is having 1.5 Km long 33kv cable due to that PF goes in leading side and another is having only 250 mtr length remains him lagging. Now i want to know that how i can maintain the Power factor at no load/ stand by position though both are behaving in seperate manner.

1 Answers

what is advantage of providing taping on HT side?

4 Answers

why dc exicitaion used in ac motor....?

2 Answers

What are methods to avoid the inrush current at the time of starting of power transformer ?

8 Answers Wipro,

For more Electrical Engineering Interview Questions Click Here