When do you use a VFD motor?

1 Answers  

---

how can we calculate the cooper armed cable size if the protection load of main fuse is 80 ampere.

1 Answers  

---

How it can worked plc based electrical system And which type of software using.

0 Answers   ITC Infotech,

---

why we are using DC violtage for testing of cables....which is used in HV AC applicatons...

1 Answers  

---

What is the working principle of servo motor? And explain it.

0 Answers  

---

---

Who are the manufacturer for Nitrogen based Fire Protectio/explosion prevention for Oil Filled Transformers? India and international both?

0 Answers  

---

what happen if any one phase of a slipring induction rotor winding is open?is it start or won't?

2 Answers   Aurobindo, Hetero,

---

why we did not get shock by touching nuetral of any single phase supply of a electrical equipement?

6 Answers  

---

What are the typical values of characteristic impedences of overhead line and underground cabel? Why there is so much variation?

1 Answers  

---

Saving in copper achieved by converting a 2 winding transformer in to an auto transformer is determined by A voltage transformation ratio B load on secondary C quality of core material D size of transformer core

0 Answers  

---

Which type of starter to used which type o motor

0 Answers   Crew pvt ltd,

---

what happan when ac power transmitted in unity power factor

12 Answers   JE, Maihar Cement,

---