Answer / aditya shirbavikar

Free wheeling diode (Fwd) is used in a d.c circuit, generally in a.c drives in which two stages are used to convert FFFV to VVVF. first rectification and then inversion. so, free wheeling diose is placed between rectifier bridge and invertor bridge so to prevent the reverse a.c pulses from blowing up the rectifier bridge circuit.

Answer / aj

simple u cannt break
inductive ckt. And coil is
essentially inductive so fw
diode is to used to make use
of inductive current when
switch is off.

what role does a star point or neutral point play in a star connected system?

4 Answers  

---

why the the electrical machine coil are damage ? How to prevent it?

2 Answers  

---

what is allowable current flows from phase to ground with out tripping the breaker

1 Answers  

---

Any Electrical Engineering jobs?Please refer for interviews. Thank you

0 Answers  

---

Difference B/W A/C & D/C Motors..?

10 Answers   Toyota,

---

We have 2 no. 4MW DG set. and GEB supply. But, we running, only 1 DG set. when we done APFC/Power factor setting : 0.90, then winding temp. Low. but when setting done : 0.83, then Winding temp. increase. WHY Why ? ? ?, plz give me answer.

4 Answers  

---

I am working as maintenance engg. in electrical but i want to do carrier in electrical drawing.Tell me about that.

2 Answers  

---

what will happen ac motor give to dc supply

9 Answers   Areva, College School Exams Tests,

---

Thermal withstand capability under full short circuit conditions, in terms of number of times of occurrence of short circuit and corresponding anticipated percentage reduction in transformer life.

0 Answers  

---

Meter p.t. ratio= 3×230/400 , c.t.ratio = 3×1 (2) A what is m.f.

0 Answers  

---

Baud rate is used to descrice...?

2 Answers  

---

How can we calculate the rating of a cable with formula?

2 Answers   TATA,

---