In alternator generally we give DC voltage to field of alternator but field (excitor)produce Ac & converts into DC by rotating rectifier(RR ) then fed to rotor .my question is why we cannot give dc voltage directly to rotor instead of Excitor & RR ?

1 Answers  

---

why field rhoestat is kept in minimum position while armature rheostat at maximun position?

3 Answers  

---

what is the terminal voltage of dc series generator running at rated speed at no load?

2 Answers  

---

SIR I AM GOING TO TAKE PART IN JINDAL ENTRANCE XAME OF 4TH OCT. PLEASE SEND ME SAMPLE QUESTIONS FOR THAT ON MY ID JITENDRA1603@GMAIL.COM

1 Answers  

---

why put integration for capacitorand differation for inductance

1 Answers  

---

What is steady state response?

0 Answers  

---

How to maintain ac plant?

0 Answers   HCL,

---

1. what is the power factor and whatis his losses 2. what is the working procedure of 51RNB AND 87 relay

3 Answers   ABB,

---

How much pole motor can be desion for 415 volt ,50 hz.Power supply. in pratical condition . Prakash veer singh

5 Answers  

---

what is the kva rating of 20 kv transformer?

1 Answers  

---

Which of the following plant has less plant factor ? -Nuclear -Hydro -Diesel -Pumped storage

1 Answers  

---

WHAT IS THE USE OF TERTIARY WINDING IN A STAR/DELTA TRANSFORMER ?

3 Answers  

---