Answer / harish

in general earthing and neutral is done for ac currents
grounding is for dc currents



in which earthing is used to reduce the short losses like
current shock and over heating of components

where in case of neutral is a common wire or point with
zero potential used as a reference one in connections

How much area a lightning arrestor can cover?

5 Answers  

---

what will happen when power factor is leading in distribution of power?

10 Answers   AMET, JTO, Power Grid,

---

1 HP = how many kw

9 Answers  

---

why sec of ct should be kept shorted

2 Answers   Enercon,

---

I have motor 1500 HP and , 4160 V , 60 HZ , then i need the rating of transformer which can feed that motor ??

0 Answers   Elmaco,

---

What are the different types of transformers?

0 Answers   Syntel, Visa,

---

why we are using DC violtage for testing of cables....which is used in HV AC applicatons...

1 Answers  

---

what is effect of brush shift in machine?

1 Answers  

---

How voltage regulation is calculated for over head transmission line? What do we mean by Conductor constant while calculating voltage regulation? how it is differ for for diffrent type of conductor say AAAC DOG & AAAC RACOON conductor?

3 Answers   ABB, AES,

---

Why the CT Secondary is rated as 5A generally?

2 Answers  

---

Ns=120f/p. what is 120?

10 Answers   IAR, L&T, Ramada, Toshiba,

---

how to conduct dc resistance test for rotor of an alternator and how to measure the rotor dc resistance value theoritically?

0 Answers  

---