In case of 3 phase motor why it is called single phasing by failure of one phare

In case of 3 phase motor why it is called single phasing by failure of one phare unless there is rest two phase are acting. ?

Question Posted / guest

3 Answers
5734 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

In case of 3 phase motor why it is called single phasing by failure of one phare unless there is res..

Answer / satya dev

Basically 3 Lines are connected to the motor for operation
that is known as Line1, Line2 and Line-3 or L1, L2 and
L3.and the voltage between L1-L2, L2-L3 and L3-L1 are
called Phases. During the single phasing actualy one Line
has failed so two phases will be down and one phase will be
acting thast why it is called single phasing. single
phasing means one line failed and it will resulted two
phase dead only one phase can active.

Is This Answer Correct ?

4 Yes

2 No

In case of 3 phase motor why it is called single phasing by failure of one phare unless there is res..

Answer / k.prakashchandra

When one phase is missing ,the other two phases form one
phase of line voltage as neutral is not connected .If two
phases are absent as there is no return path, the condition
is zero phasing

Is This Answer Correct ?

2 Yes

0 No

In case of 3 phase motor why it is called single phasing by failure of one phare unless there is res..

Answer / guest

I woukd like to ask above question.

Is This Answer Correct ?

1 Yes

0 No

Post New Answer

More Electrical Engineering Interview Questions

How to select the rating of the Transformer?

2 Answers

what is the difference between synchronous generator & asynchronous generator

4 Answers Reliance,

What is the maximum breakdown voltage of 11KVA and 66 KVA power line and how it is calculated?

0 Answers Anglo Platinum, Narnarayan Electrical,

what is a vector protection in transformer

0 Answers

TO operate transformers in parallel, vector symbol of the both should be same.If one transformer name plate is not there, how can we conclude that whether the transformer is having the same vector symbol or not?

4 Answers

what is electrical machines

1 Answers

what is the advantage of connecting capacitors in delta than in star?

1 Answers NTPC,

what is different between synchronous & asynchronous motors

3 Answers

Hi guys! Plz help me to answer the following questions. 1. What are the types of transmission line energy losses? 2. Why are the VLF are used some types of services? 3. What frequencies are used for reliable beyond the horizon terrestrial communication without repeaters? 4. To permit selection of 1 out 16 equi-probable, what is the number of bitis required? 5. What is the most common modulation used for telegraphy? 6. What is the multiplexing is used to increase the capacity of the optic fiber? Thanks

0 Answers

The knee point of a current transformer is normally unique and known.So why in the nameplate of a CT they put the minimum value like this Vk> 400v.

0 Answers

what is the function of garing capacitir in SF6 circuit braker?

1 Answers

when a motor is connected in parallel with the existing motor the pf will change or not?

9 Answers

For more Electrical Engineering Interview Questions Click Here