what is 'A' Check & 'B' Check ?

2 Answers  

---

Is a induction motor rotate by back emf ? If not , then how it is rotate ?

1 Answers  

---

Phase control and integral control are used for?

0 Answers   NPCIL,

---

Which is the best protection in case of shortcircut fuses or mccb ?

2 Answers  

---

A 25MVA 3300/400V T/F is termed as per winding is …… a) primary 3300V & Secondary 400V b) primary 3300V & low voltage winding 400V c) High voltage winding 3300V & Secondary 400V d) High voltage winding 3300V & low voltage winding 400V

4 Answers   Engineers India Limited,

---

---

Why VL is more than the Vc?

2 Answers  

---

What will be happend if we not ground CT secondary?

3 Answers   Enercon, Engro, THDC,

---

why transformer are rated in KVA not in watt?

7 Answers   DMRC, L&T, TCS,

---

what is the simple meaning of harmonics?

4 Answers  

---

Please explain, how to test vector group of tranformer(Delta y1) . Thank

0 Answers   PGCB,

---

slor cell made?

1 Answers  

---

What is the normal earth resistance?

11 Answers  

---