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

Minimum IR value of 1.1 kv grade 3.5c (300, 240,185,150,120,95,70,50,35,25) sqmm Aluminium XLPE cable and 4c (16, 10,6 & 4) sqmm cu arm cable between RY,YB,BR,RN,YN,BN,RE,YE,BE & NE.

0 Answers   Gasco,

---

what should be the ideal gauge of wire (In sq mm) for different loads in Ampere?

0 Answers  

---

the inertia constants of two machines are respectively 30and 42 MJ per MVA.when the change in frequency due to change in load in first machine is 12 Hz,the change in second machine frequency will be?

1 Answers  

---

In my project i am layout cables under the Maintainance bay /Maintainance yard in the TG Building. Whether in this route i can lay the H.T.Cables??? i am taking all H.T cables from the H.T Transformer to the TG Building..

1 Answers  

---

what is the difference between concentrated winding and Distributed winding in motor?

7 Answers   BSL, Infosys, TCS,

---

---

how we can use resistance heating for any domestic purpose???

2 Answers  

---

do you know measure the earth resistance?explain

1 Answers   Dalkia,

---

Which type of transformer is used for lighting loads?

0 Answers  

---

will a bulb glow connected to two phases of a delta connection?

6 Answers  

---

I have a small system with two motors that are running on 380 vac, 60 hz. These motors are expensive and I usally get them from Brazil. I am adding another motor to the system, but I want to purchase a 480 vac, 60 hz motor to use. It will be on a VFD that is rated fro 380 thru 480. Is this posible and will I have to use a larger motor and derate it?

0 Answers   US Electrofused Minerals,

---

The D.C. spark test is applicable to single conductor cable & assemblies of insulated single conductor cables without insulation shield,metallic sheath or metalic armor?

0 Answers  

---

what is frequancy

7 Answers   TCS, Torrent Power,

---