Answer / maddoxx

neutral in sigle phase line is the return path which is normally(off ckt) at 0 v.grounding is done for protection and current flows only during fault.Grounding is done basically on the non current carrying part of the device or system so if there is failure of insulation in motor or device the current also flows in chesis of device. so if we do grounding it flows impedance path) to ground(earth).and thereby protecting device from higher current.
in 3 phase line neutral has no current in balanced cond'n.But has in unbalanced.so this extra current can be bypass by connecting neutral to ground or to the supply neutral(which is also grounded).
"SO NEUTRAL IS A RETURN PATH(1 PHASE) AND GROUNDING IS A BYPASS PATH IN FAULT CONDITION ONLY"

How we select the cable rating

1 Answers   BTM, Videocon,

---

kindly tell me how the load on generator increase by just increasing the fuel of prime mover, as if for exampple 20 MW gen set is synchronized the load ramps from zero to 20 MW gradully and during this procress only fuel of prime mover increases. Which thing determines the load on generator with respect to fuel

4 Answers   Birla,

---

What is the function of NER and NET?

0 Answers   Asian Paints, GHH RAND,

---

wht is an AVO metre. and whre it is used?

1 Answers   Mayflower,

---

why ct ,cvt should be stored in a vertical position?

0 Answers   Balco,

---

what is the benefit of floating our DC source? if i have two floating DC source of which 1 has a ref voltage of -21VDC and the other of -18VDC. can it be connected in parallel to share a common ref voltage? if not, how do i make both sources to be of common ref voltage? tks

0 Answers  

---

Why we are using only Dyn11 tranformer in distribution system but not using a Dyn1 in distributing system?why not and advantage and disadvantage in both

0 Answers   Jindal,

---

what is the mean of"turbo" in turbo alternator???

1 Answers   CCCL,

---

whye the current increases in the motor when the load on the motor increases

3 Answers  

---

what its mean 'inverter based technology' ? if we talk about refrigerators, splits ACs etc how it helps to produce & keep more coolness and chilled atmosphere ?

1 Answers  

---

how can we test the vector group of transformer

1 Answers  

---

Why do we apply both Differential and REF (HV and LV) protection schemes on YNyn configuration of a transformer?

0 Answers   WCC,

---