what is the principle of vvvf drive motor

3 Answers  

---

What is OLTC in transformers and what is its function?

4 Answers  

---

What is Annunciation?

0 Answers   Solare,

---

what is RCBO?

1 Answers  

---

what is the criteria for selecting fuse rating in 1phase, 2phase & 3phase welding sets?

0 Answers  

---

---

Why in Hv transmission line as we see there are generally 6 or more than 4 conductor wires are used instead of 4 i.e. 3 for phase and 1 for neutral wire?????

2 Answers  

---

For which purpose the temp. rise test of transformer is conducted?

2 Answers  

---

Explain how you intend to work under pressure to meet up with deadline target?

0 Answers  

---

What is Engine?

6 Answers   HSL,

---

What are the effects to a distribution transformer rated 10Kv with ratio 10Kv/0.433Kv, 3phase 50hz for example but fed with power supply of 11Kv?

2 Answers  

---

What should be the protection scheme for a 15kw, 3-phase motor working in a lathe machine.

0 Answers  

---

What is the kva?

2 Answers   Makino Auto, SAL Steel Power, Sapphire Group,

---