1. If we apply dc supply to the primary winding of transformer it will be burnt out. similarly dc supply is given to field winding of syn. motor and armature winding of dc motor, they are safe. (Remember both windings inductive nature) what is the reason behind that?

2 Answers  

---

what is S.T?specify the range?

2 Answers  

---

Can we put 3 layers of cable tray while installing tray

0 Answers   NTPC, Siemens,

---

Why iron core losses are constant at all loads in a transformer ?

1 Answers   GATE,

---

State Maximum Power Transfer theorem.

0 Answers   ABB,

---

please, Send me last technical test question paper in my email id..

0 Answers  

---

For fixed primary voltage how does secondary terminal voltage of a transformer change if the pf of inductive load is raised from 0.7 to 0.9 with load current remaining fixed ?

1 Answers   GATE,

---

what is the RMU and RMU system in sub-station(11kv,66kv.....)

2 Answers   Alstom, Torrent Power,

---

what is feed back and what are feed back amplifiers?

0 Answers  

---

The CHARGED BATTERY GET DISCHARGED WHEN IT IS NOT IN USE FOR LONG TIME.GIVE REASON.

1 Answers  

---

How to power regulated by AVR in Alternator?

3 Answers   EPGL,

---

How many different speeds can be obtained in cascade control of two induction motors?

1 Answers  

---