Answer / gupta.bhuvan

self starting problem of single phase AC motors. Single
phase isn't able to create torque by different magnetic fields.
So capacitors etc. are used to overcome this problem.

Answer / shahidniazi

when we use only single winding then no rotating flux so in
single phase motor is not actually single phase but split
phase mean 2 windings so that will produce rotating field
and rotor will move.

what is the internal working of star delta starter

0 Answers  

---

types of motor starter

5 Answers  

---

Why phase sequence must be same in any ht motor or generator circuit?if phase sequence doesn't same whatever will be affect on circuit?

0 Answers  

---

What conditions are required for transformer to operate at low frequencies ?

0 Answers  

---

hii this is ranjith from hyd... i want to know what type of questions they ask in interview...and hw the interview will go..? what subjects thay ask specially for electrical engg students?

0 Answers  

---

what is the reason for balance of voltage in magnetic balance test?

2 Answers   Reliance,

---

they transformer oil leakeage to beather tank and top parts . they protection relayes was not operated.what is the oil leakeage problem.

1 Answers  

---

we have earthmat at 110KV substation.we would like to take earth resistance.b some says that by connecting earth megger terminals (C1,P1) at middile point of earthmat (at riser) will cause voltage gradient at other earthmat nods and dont get exat earth resistance.when connecting at end nods will get exat value . is it correct .please explain

0 Answers   TNEB Tamil Nadu Electricity Board,

---

one KVAR takes how much amps, and how to add power capacitors to electrical panels, for example if one of the MCC drawn 800amps means how much KVAR required

1 Answers  

---

what is the star delta connetion and how can do it a three phase motor with control witing with picture

0 Answers   Aurobindo, SA Kent, Wipro,

---

How to size Air Circuit breaker (ACB)? What is the most important factors?

0 Answers   ABC,

---

DRAW ACIRCUIT DIAGRAM OF 100 KVA 415V/55-0-55V DELTA TO STAR TRANSFORMER

0 Answers   SRA,

---