Answer / nithi

Earthing & grounding are different.
earthing:if the outer case of the machine (electrically
isolated) is connected with the ground for the safety of
operator ,then it is called as earthing.

grounding: if the live point(neutral point-electrically
connected) of the electrical system is connected with the
ground ,then it is called as grounding.

Answer / k.prakashchandra

Ground may be taken as enclosure or body also.In
automobiles the -ve is connected to the body and it is
termed as grounded.

can we use ACB for HT supply

2 Answers   Reliance,

---

what are the differences between MCB and MCCB ?

19 Answers   Bhel, DLF, Omax,

---

I am experienced with house and industrial wiring but I don't have any licence how can I apply an licence and which type of licence i can get i didn't complete deee just only experience

0 Answers   Future Electrical,

---

Neutral CT for 45MVA 132/11 KV YNd11 Transformer. NCT REF CLASS-PS or 5P20 with 20VA burden which is suitable.

1 Answers  

---

why a three phase induction motor cannot run at synchronous speed ?

7 Answers   RUET,

---

In a power system we know that if the generated power is less than the load then the frequency of the system is decreases.So does this mean that total required load is delivered at alower frequency?

1 Answers  

---

Terminal blocks is used for segregate the connections... There is any principle for terminal block..?

0 Answers  

---

Why the output of OP-AMP is always less than Vcc?

0 Answers  

---

distribution transformer de-rating formula on over limit iron losses  

0 Answers   IESCO,

---

we convert 66kv to 33kv then 33kv to 11kv,11kv to 440v.why not we convert directly from 66kv to440v?

7 Answers   HCL, L&T,

---

i have 2 motor of same rating. on no load condition one motor take 1.6A but other motor is taking 4.8A. what is the reason of this. please explain with proof.

8 Answers   Ambuja, UltraTech,

---

diff b/w normal grounding and resistance grounding

0 Answers  

---