what is the advantage and disadvantage of billing in kwh and kvah by electricity board .

6 Answers   Nespak, NTPC,

---

how to find the Motor,s insulation Power?

0 Answers   Gourmet Group,

---

What is the criteria that generally follow by distribution licenses to fix contact demand of their industrial customers?

0 Answers  

---

how much current (in MW)can be carried max. through S/C dog & Panther Conductor ?

1 Answers  

---

Sir, plz tell me the relation b/w KW and frequency in Variable frequency Drive?

2 Answers  

---

---

What is the difference between INVERTER and UPS?

7 Answers  

---

hello everybody. what does an abnormal stator winding impedance or dc resistance show? thanx

0 Answers   Ansaldo,

---

I'm generating a pulse of 3V with frequency 80Hz (12.5ms time period) and pulse duration 0.125ms and feeding it to a transformer since i want the pulse to get amplified around 60V. At the output amplification s happening but the pulse is changed to a spike, can you tell me what could be the reason? (an ordinary transformer 220V-12V stepdown transformer is reverse connected ie. now it is 12V-220V stepup and voltage amplification happens)

0 Answers  

---

Genreally distribution transformers are having Star/delta connections to provide phase and neutral to the consumers. Is the neutral of the star conncted secondary grounded in these transformers?

1 Answers  

---

We have 800KW motor operating at 6600Volt,50 Hz supply.During 1st startup it tripped on overcurrent trip.It's FLA is 88 Amps.The K factor of Thermal overloaaad was set on .94 initially.then we set at 0.97 and then it started fine.i dont understand why it tripped first?What are the protections which comes in picture during starting ?

6 Answers  

---

Application of statically induced emf

0 Answers  

---

Is corona effect occurs in Induction motor. pl. justify the answer.

4 Answers   KPS,

---