If single phase voltage level is 230V than why three phase voltage level is not 660V ?, but it is only 440V.

16 Answers   BSNL, DOS, EFS, HMT, L&T, TCS, ThyssenKrupp,

---

how much percentage(%) of load can feed in power transformer?

1 Answers   Siemens,

---

to transmit 30kw of power at 30 km what is voltage required

2 Answers   Anglo Eastern, Merchant Navy, NPCIL,

---

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  

---

Why field rheostat is kept in minimum position while armature rheostat at maximum position?

0 Answers  

---

No load efficiency of transformer is ___________ than full load efficiency

2 Answers   PGCET,

---

what's the different between ELCB, ELR and ELS?

1 Answers   CP,

---

if HT side voltage is high current is low . and LT side voltage is low current is high please explian.

5 Answers   HP,

---

What are the loading factors to be considered for transformer sizing/selection?

3 Answers  

---

if the number of poles generated in stator and rotor side of an induction motor are different then what will happen and why?

0 Answers  

---

what is mean by harmonics?Type of harmonics?

6 Answers  

---

what will happen if ac power supply is given to the rotor of an alternator

1 Answers   Goldman Sachs,

---