WHY R USE IN BRUSH IN THE MOTOR?

6 Answers   L&T,

---

2.5mva transformer is installed in our company with oltc but it is not working in auto mode ,it is operative in manual mode control wiring is done how can i rectify it?

5 Answers   Imdaad,

---

what is the difference between STAR and DELTA connection and application wise how it can be utilizedd

0 Answers  

---

What is time response of the control system?

0 Answers  

---

in alternator how we can give power to rotor ? its power is AC or DC ?

5 Answers  

---

why two point starter,three point starter, four point starter cannot be used for A.C machines?

2 Answers  

---

what are upstream faults and downstream faults in power system

2 Answers   Sreetech,

---

how to Select Lighting arrester? What r the parameters to be considered for the selection of Lighting arrester ?

0 Answers  

---

which fault current is maximum: 3 phase short circuit, LG, LL or LLG?? why?? in one of the problems that i have solved, 3 phase short circuit current on an unloaded generator came out to be less than the LG fault current. can anybody please explain why.

2 Answers   Bhel,

---

State how to produce a constant rotating field by application of alternating currents to stator armature of a three-phase squirrel-cage induction motor

0 Answers   Jindal,

---

What should be setting for alarm,tripping and cooling fan on for power transformer's oil temp. and winding temp. indicator?

0 Answers  

---

Can neutral line also be use as a earthting for distribution transformer, or we need separate earthing pit forh the transformer?

1 Answers  

---