Answer / pratheesh

In three phase system, if the loads on all three phases are
equal, there will not be any current flow through neutral.
Remember the star point of motor. I1+I2+I3=0. If there is
no potantial in neutral with respect to ground, there will
not be any current flow.
But if the loads on any phase/s are not equal to others,
I1+I2+I3 is not equal to 0. So in this case there will be
some potential on neutral wire at the load side and this
will creat a current flow to the star point of trasformer.

Answer / jawad

NEUTRAL CARRY RETURN BUT NOT POTENTIAL,ALL WHAT WE GET
SHOCKED IS BECAUSE OF POTENTIAL.AND IN ANY CIRCUIT YOU WILL
SEE THAT ALL POTENTIAL HAS BEEN ALREADY DROPPED IN THE
COMPONENTS.SO AT NEUTRAL WE HAVE ZERO POTENTIAL

Answer / satyavir

Neutral carry return current equal to phase current but in
the scence of one phase.OR it carry in three phase
condition only when different current flowing conditon if
current will same in three phase then in neutral wire no
current return.

Answer / pavan

here neutrling is nothing but ground so for ground
potential is zero so current is zero

What is the max value of neutral current that can be allowed in system?

0 Answers  

---

hy i need help with LabView, I need a sample code of LabView to download serial data from the Intellivue Patient Monitor to PC. Thank you in advance.

1 Answers  

---

which motors are used in electric traction?

1 Answers  

---

what is mean by NPS (Negative phase sequence)fault? what is the difference between EFR & OCR faults?

0 Answers   TNEB Tamil Nadu Electricity Board, Vestas,

---

what is suitable cable for 25 HP motor ? start with VFD ac supply 50 hz

3 Answers   Mac,

---

How can we save electrical cost i.e switchgear, wiring, conduiting etc in a room?

1 Answers  

---

What are the various types of LT panels? Name them.

3 Answers   Tyco,

---

At 765Kv, I have seen the use of PT at line side for metering and CVT for protection, although as far as my knowledge is concern, PT at this voltage level will have huge loss and more cost as compared to CVT as CVT can also perform same function of Protection and Metering? So my question is why use PT and not CVT for metering and protection in order to reduce the cost.

1 Answers  

---

i want to know about for what reason we are using star delta starter? how it works? what are the advantages?

4 Answers  

---

send me the upsc conventional papers of 2006

1 Answers   Juniper Networks, Siemens,

---

Multimeter show phase to neutral volt 230 the per phase but phase to phase 415 not show 460 why.

1 Answers   Intas,

---

What is the difference between XLPE & FRLS cables? Is FRLS cables is a type of XLPE cable or both r different?

5 Answers  

---