Answer / sameh el-azab

-if the motor is single phase nothing happens because the ac wave inversed automatically
- if the motor is three phase there will be two case:-
1- if u change two line the motor direction is inversed
2- if you change the three line nothing happens

Answer / k.prakashchandra

Ac does not have polarity , you can change the phase sequence

Answer / shahbaz

If it is 3 ph inductin mtor then its directin of rotatin gets reversed

What are instrument transformers?

6 Answers  

---

plz tell me the potential difference between phase and netrul

2 Answers   CGL,

---

Upto what extent, the lagging power factor can be improved with the help of capacitors?

6 Answers  

---

A 400KVA Transformer has 400Hz frequency.if frequency is changed to 50Hz,then what will be the new KVA rating?

2 Answers   ABC,

---

How to protect the water pump by no load running.

9 Answers   Cushman Wakefield,

---

---

what is the use of tertiary winding?

2 Answers  

---

can any one help me for my ups inter view , list out few basic technical ups question with answer.

1 Answers  

---

why synchronization done in clockwise direction?

12 Answers   Hindalco, NTPC,

---

What is the effect of electric motor stuck in star configuration,

0 Answers  

---

if earthing is not connected to computers any problem ?

2 Answers   HP,

---

how we can check the CT & VT?

2 Answers  

---

Why we called L-G fault as line to ground fault why ground? suppose if a line falls on building roof then can we called these fault as line to roof fault? please explain why ground term is used here?

3 Answers   Bhel,

---