Answer / loganathan

IN DC MOTOR WHILE WE Giving THE DC supply THE COMMUTATOR
CHANGE into ac current.

Answer / ranjit mallick

The above answer is correct but i just want to add that in
general commutator works in converting AC to DC and vice
versa as in case of DC generator.

Answer / gopal manda

i m agree both answer.but commutator is also used for
input&output in dc machine to the help of carbon brush

what formula can be apply to calculate the No of rtrand of a cable. ?

1 Answers  

---

what is the difference between arc and spark

2 Answers  

---

why we pefer the salient pole for synchronous motor ?

2 Answers  

---

Please help me regarding my one concern. - During earth pit testing we noticed that the Clean earth pit and dirty earth pit showing continuity (Resistance value - 5ohm) . I want to know that if both earth pit have separate location and there is not internal looping between PIT then why such continuity is showing on it . Because of this issue the field side all earthing point showing short. In PLC panel we are providing two types of earthing cable which is coming from separate earth pit (Clean and Dirty earth pit) because of earth PIT showing short our PLC is not complying spec . please help regarding this issues.

0 Answers  

---

What is partial discharge in power cable?

1 Answers  

---

---

what is a core company? why should we join a core company?

1 Answers  

---

Please nybody say, weather the result of Bharat Oman is declared or not? Probable date of declare???????

0 Answers  

---

why the Different manufacture's rating of Gas genset are different? i.e : cummins genset rating is in KVA .( 625kv). While GE- Jenbacher make genset have rating in Kw. (625 kw)

1 Answers   L&T,

---

What are the advantages and disadvantages of closed-loop control system?

0 Answers  

---

How to calculate the current rating of power cables ?

1 Answers  

---

how to calculate the current carring capacity of the conductor

1 Answers  

---

what is v/f control in VFD?

0 Answers  

---