Answer Posted / akki

A transformer is a static device used to step up or step down the voltage depending on the number of turns of primary and secondary coils.its also is used to isolate the circuit from direct AC mains power supply.

i m in need of current rating chart of heavy duty pvc/xlpe, cu/al cables. can somebody provide me? if yes, plz send me at ashish_patel111@yahoo.com

1965

---

any one can explain what is the size of pvc,armoured, various sizes of powr cable dia?

1872

---

Why does the rotor rotate?

2202

---

how is find out kwh step by step

1728

---

what is RFID? thire application;

1991

---

what is the terminal voltage of dc series generator running at rated speed at no load?

7490

---

If 24 KVA AVR having Input voltage 200-400v, Output voltage 415+-1%, what will be the voltage if Load is 13A.

2048

---

What is the percentage loss for aluminium wire for HT line more than 11KVa

2050

---

how to test reverse power trip?

4410

---

What is George phenomena to start the synchronus machine?

4084

---

design of IGBT firing circuit for 11KV

2573

---

what is meant by 3rd hormonics ?

1788

---

What is force on a conductor in a magnetic field ?

1014

---

what happen as when voltage drop(or may decrease) ? in case of atomic base theory?

1977

---

Whether it is possible to measure energy at the input of rectifier transformer (12 pulse with very high odd harmonics)

1839

---