Answer / animesh

in single phase system, there will be a return current
always. if u touch the neutral u will get a shock.
but in case of 3 phase system,normally 0 current flows in
neutral bcz v1+v2+v3=0. u will experiecne a reverse current
shock only in case of unbalanced loading bcz of which phase
volatage changes and their vector sum is no more equal to 0.

Answer / k.prakashchandra

The vector sum of 3 phase equal currents is zero

Answer / manik chatterjee

Because electrons always flows from negative to positive
and current flows from positive to negative.

what is the diff. between x'mer , isolation x'mer & ultra-isolation x'mer ?????????????

0 Answers   ABB,

---

what r the types of detectors? state the location these detectors?

3 Answers  

---

how to discharge 3 phase power factor correction capacitors

0 Answers   M S Ramaiah Institute,

---

How to calculate CT ratio for 11KV 1500KVA Transformer 500KVA MD and 1400KVA connected load ? Note:- As per MSEB(Maharastra state electricity Board)

1 Answers  

---

DIFFERENCE B/W NEUTRAL AND EARTH?

2 Answers   Genesis, IBC,

---

which types of tests are required after commissioning of 6.6 kva tranformer?

3 Answers   Reliance,

---

i am working in a grid substation,TNEB having 13 yrs experience. Am I eligble to get apply for c licence now?

3 Answers  

---

WHY IL=IPH IN STAR AND WHY IPH=IL/1.732 IN DELTA? WHAT IS REASON BEHIND IT?

0 Answers   Siemens,

---

how withstand of hi-pot test outputs of transformer wire 2.5mm

0 Answers  

---

How line capacitance & line inductance varies with increase in height tower.

0 Answers  

---

what is the transformer turn ratio formula and give some examples?

0 Answers   UPPCL,

---

what is the function of fire alarm system?

5 Answers  

---