how to select the no. of brushes in a lap winding?

0 Answers  

---

what is buffer resistance starter.?.What is the working principle and where it is used..?

0 Answers  

---

what is the main use of ac and dc drives ? it is only used for speed variation or for power saver also?

1 Answers  

---

what is the maximim current drawn by 1 phase and three phase welding machine

0 Answers  

---

why voltages are multiple of 11 or 1.1???describe with derivation plzzz.thanks

2 Answers  

---

in three phase 11kv transformer (11kv/433v) input( R,Y,B) output (X,Y,Z,N) the connection as follows 1 phase R -open 2phase y connected to both R and y of input] 3phase B- B what is the output voltage X to N ,Y to N , Z to N

2 Answers   Bescom,

---

what is the difference between thyristors and capacitors

2 Answers   DRDO, ETE,

---

1.Whats the use of GNAC(Generator Neutral Accessory Compartment) 2. why generator or any other system require Neutral Grounding and not Phase grounding 3. what happens if any one of the phase is grounded. 4. if 15kv is grounded directly what will happen, why it should not be grounded like that 5. use of of NGTR(Neutral Grounding Transformer and Resistor) for grounding is helpfull and how

5 Answers   BEMCO, CSS, Powergear,

---

How to calculate the slip ring induction motor rotor current and voltage.

1 Answers   Bhel,

---

Define delay time.

0 Answers  

---

how to synchronize 4 nos. of diesel generator sets of different capacity (kva)?

7 Answers   Bhel,

---

What happens to a line-frequency of high-frequency transformer when it is first energized/ re-energize?

0 Answers  

---