Answer / hareesh k.s.

dc series motor can work in ac also.while connecting to ac
there is change in flux due to the alternative nature of
the ac supply, that cuts by the armature which results the
rotation of the armature.

Answer / masoom raza

in ac both polarity changes which changes the flux and current
direction in field and armature simultaneously. as torque is product of flux and current(in armature)is always positive hence it will rotate in one direction only.for this series motor is also called universal motor.

how we select fuse rating for motor?

6 Answers  

---

How to assume answer to electrical questions

1 Answers  

---

why free wheeling diode is connected across inductive load

16 Answers   NTPC, Omaxe, Wipro,

---

What is application of MCB & How it works

1 Answers   TATA,

---

what is the meaning of stub protection?

1 Answers  

---

draw a dol with the following rtds,stop/start,ct,vt and o/l supply is 6.6kv and the coil is 110v

1 Answers   Anglo Eastern,

---

what is ic 01,ic 06 ?is it types of cooling?

1 Answers   Bhel,

---

why we pefer the salient pole for synchronous motor ?

2 Answers  

---

please send the last 5 years {{{JUNIOR ENGINEER - ELECTICAL, ELECTRONICS RRB CHENNAI and secundrabad}}} TECHNICAL question papers TO MY EMAIL ID dinesh100701@gmail.com

0 Answers  

---

how diside ct mf exmp.200/5 ct

1 Answers  

---

What is a liquid resistance starter?where it is used??

15 Answers   Mecon,

---

how to calculate of which rating transformer should be selected? take any example

2 Answers  

---