Answer / gopal

A motor designed for line frequencies doesn't have the
inductance to limit current at 25 Hz. And the coupling to
the rotor is inefficient. Driven to provide reasonable
torque it will heat badly.

to improve the existing power factor whether capacitors have to be added in series or parallel.and why

3 Answers  

---

2 t/f operating in parallel will share the load according 2 their- a)leakage reactance,b)pu impedence,c)efficiency,d) rating.

1 Answers  

---

in wind mill use 2100 kw asychronous generator ( induction generator ) rotor voltage : 3300,stator voltage : 690, rpm : 1511 type : MRL063E04 ' we check rotor resistance magger value found following. R-EARTH - 00 M.OHM,Y-EARTH-34 M.OHM,B-EARTH- 33M.OHM R-Y: 31 M.OHM, Y-B: 00 M.OHM,B-R :33 M.OHM HOW CAN I TAKE DECISION?pls ans. quickly

0 Answers   Shaifali Rolls,

---

WHAT IS THE DIFFERENCE B/W BUSHINGS AND INSULATORS? WHAT IS THE CREEPAGE DISTANCE ?

3 Answers   TCS,

---

define superposition theorem thevnin theorem ,norton theorom?

0 Answers  

---

How to find synchronous motor speed formula Ns=120f/P ?....

2 Answers   Cranedge,

---

What can be a rating of a transformer(KVA) if the load is about 1000KW?illustrate by showing formula?

2 Answers  

---

how to reduce power loss when the tranmission under long distance?

19 Answers  

---

What are HT & LT Cables? What are their values?

3 Answers   IOCL,

---

What is the function of Lightning Arrester & Wavetrap in Power system ??

18 Answers   ABB, Bhel, Energy Infratech, Infosys, NTPC,

---

How to calculate percentage impedance of a power transformer.

1 Answers  

---

Can any body tell gulf interview question for experienced electrical engineer ?

0 Answers   Gulf,

---