why using carbun bresh in dc motor

3 Answers  

---

what is diff. between earthing grid,earthing mess, earting grid?

0 Answers   Century Rayon, Emco, Tailor Solution,

---

why are the likely reasons for bochholz & pressure relays oprate due to a internal fault but not differential relay ?

2 Answers  

---

what is relay what is protection & contact multiplying relays where it is used function in brief

0 Answers  

---

What is the output voltage of a DG set.

3 Answers   Fitness First,

---

What are interpoles and commutation windings?Why r they used?

1 Answers  

---

Which motor has high Starting Torque and Staring current DC motor, Induction motor or Synchronous motor?

5 Answers   BSL, Elite, TTA,

---

can we use inductor in case of d.c.,if yes then what will happen in circuit

3 Answers   JSW,

---

What do you mean by 4.44 in this transformer equetion E=4.44 nfqm

4 Answers   Bharat Bijlee,

---

Define closed loop control system.

0 Answers  

---

how does a tube light starter works?

2 Answers  

---

what is the difference between earth, neutral and ground?

1 Answers   Farnek, Shyam Indus Power, Spiro Solutions,

---