how can we rotate a single phase motor (without cap.)in reverse direction?

how can we rotate a single phase motor (without cap.)in
reverse direction?

Question Posted / dhiraj

2 Answers
5306 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

how can we rotate a single phase motor (without cap.)in reverse direction?..

we kannot strt a 1phase motr with out kapacitr, since the
1phase motrs are not self strtng.

but without kapacitr , we kan rotate 1phase motr in either
direkt, by giving some xternal torque to the motr shaft at
at the tym of strtng.

Is This Answer Correct ?

3 Yes

0 No

how can we rotate a single phase motor (without cap.)in reverse direction?..

Answer / piyush yenkar

either change the terminal of 'main winding' or 'auxiliary winding' but not both.
To say directly that you can not start a 1phase motor without capacitor is ot right.We can go for 'shaded pole motor' .but the direction of shaded pole motor can not be reversed.

Is This Answer Correct ?

1 Yes

0 No

Post New Answer

More Electrical Engineering Interview Questions

how much current and power in watts can be carry by 2.5^2mm cu wire and 4 core 10^2mm Al cable?

1 Answers

How convergengr of nr method is not dependent on selection of slack bus and how gauss siedel method depends?

0 Answers

what is the work of trip circuit supervision relay?

2 Answers Volkswagen,

every motors written in name plate IP 55 what is this?

2 Answers

what is a starter ??

2 Answers NPTC,

Do any one know exacatly when the results for NHPC held on 8th march 09 for engineering trainees will be released ?. if so please post it, i'm eager to know it.

0 Answers NHPC,

In power point wiring,often,we use less size of earth wire compared to phase & neutral wire and we use big size pin in pug top. how is it justified? can we use small size cable for earthing?

3 Answers HAL,

what r the main parts of central chiller plant in Air conditioner ? explain the function of each?

12 Answers ITC Infotech,

In single core cable, Why non-magnetic material is used??

1 Answers

Application wise, where we should use AC motors and where we should DC motors?

1 Answers Nespak,

I have a current transformer with 1 main reading meter with transformer outside the building and a control panel having 5 CT reading meters with black round coils inside the building. I want to know, A) when current pass through the Transformers, will the current be reduced or be the same and after that B) when current pass through the CT meters with black round coils, will the current be reduced or be the same. C) in the above process will the reading of the main meter be same or different, from the total reading of all the 5 CT meters.

0 Answers

what are the current specifications of bus ducts ? i ve seen in IPBD bth 22000 A and 1500 A in 400 kv switchyard . why it is so??

1 Answers

For more Electrical Engineering Interview Questions Click Here