Answer / umesh 123

Firstly the current flows through the phase wire and returns in neutral.if we connect the fuse in neutral it will burn after sh ckt, but the line lives in load(machine) so it will harmful

2nd- the magnitude of neutral cable is half 3 phase line where the unbalanced load(current) returns through neutral.

Answer / ghanshyam singh

i think the rating of device in which the fuse is used has
more capacity than the rating of fuse,therefore it can be
considered that the fuse will blow out first and the device
will be saved.
by ohms law v is proportional to i so i think the
current decreases through the neutral wire but i dont
know that haps in the second half cycle of ac currrent

how does high earth to neutral voltage affect electronic equipment?

0 Answers  

---

What is the basic principal, by which DC voltage level is increased more than the supplied AC voltage during conversion. As upto AC level it is contorrled by firing anlge but after maximum level how is it possible.Please clear picture. OR we have to supply the higher level AC?

0 Answers  

---

what is power factor ? how we can calculate the low power factor and amount of capacitor for improve that low factor ?

0 Answers   AB, JLL,

---

physical identification of HT & LT panel

0 Answers   Schneider,

---

when secondary volts is given how do we find primary volts, turns, amps of primary and secondary given???

1 Answers  

---

Why the starting current in Induction Motor is very high as compared to normal rated current ????

6 Answers   Essar,

---

can HT cable or HT bare conductor used for LT line? is yes what would be the current rating?

2 Answers   ACC, wbsedcl,

---

What is the difference between power cable and signal cable (only Observation Difference)?

1 Answers  

---

how snubber circuit works to protect switching devices?

2 Answers   Electrotherm,

---

cable tray sizing & selection

1 Answers  

---

Why neutral is not used in three phases dol starter

0 Answers  

---

if field winding of synchronous generator are shorted on each other will it start or burn or run for short time like induction motor

1 Answers  

---