Answer / sudhakar g

For any transformer it is better to install two for body
eathing and two for Neutal earthing
Body Earthing: GI pipe 40mm dia using charcoal and salt
like this
Neutral Earthing: Copper plate 600x600x3 mm size for
netural earthing with all neccesary materials

After completion of Earthing you need to check the earth
resistance value for these earthing it should be below 3ohms

I think these are the neccasary requiremnts for your
trasnformer

According to IS standards the distance between pits must be
2.5mtrs and from the building it should be far from 3000mm

I am taking Electrical desining classes in Bangalore...It
will be usefull for designing as well as site engineers
those who are intrested to go for Electrical
Engineers....we give you indepth knowledge of Load calu,
Cable sizing, Lighting cal, panels, breaker
selection,Autocad drawing....if any body intrested means
pls call to +91-7760362623 or sudhakar28485@gmail.com

Purpose of providing neutral isolation panel for parallel operation of diesel generator

0 Answers  

---

is it necessary to earth the rmu before cutting off the transformer winding?if yes why?

0 Answers  

---

we have one 75kw motor 380 volt 3ph amp134 please advise which size of cable required

2 Answers  

---

we have a 2000kva step down transformer at our site. The HT side is charged from 22000V. So the primary current will be 52.48A. So why the HT breaker(SF6 ABB) is rated of 1250Amps ?

2 Answers  

---

what questions are asked in the interview for the post of an electrical maintenance engineer in FMCG companies?

0 Answers  

---

what is the difference b/w conductor and semicoductor

1 Answers  

---

why insulators colour is BROWN?

1 Answers  

---

What is effect of low pf on HT supply.

6 Answers  

---

why not phase to phase fault occure in raining day in hv sub-station?

1 Answers   Getco,

---

explain all the classes with example

0 Answers  

---

I want to ask that is there any relation between current denesity of copper and material purity. also is ther any standard which defines the standard current denesity of material.

0 Answers  

---

why should the lowest unit of a testing transformer ( cascaded transformer ) have higher power rating??

0 Answers   TCS,

---