Answer Posted / pundlik wanwe

transformer oil BD value is a relative term and as a matter
of fact we can use the oil of different break down value
depending on the transformer voltage ratings.
1) For the transformer voltage rating more or equal to 145
kv BD value of oil should be more than 65 kv and moisture
content should be below 15 ppm.
2)for the voltage rating below 145 KV BD value should be
45KV and moisture content of less than 25 ppm.
More more information please refer
a) IS: 1866 for oil in service.
b) IS: 335 for new oil

What is cut-off rate?

1214

---

What are books to be referred for KPTCL exam?

3676

---

The specific heats of the gas at constant pressure and constant volume are respectively 1.0 kJ/kg K and 0.72 kJ/kg K; the value of R for the gas is

1135

---

what is the meaning of osr in transformer.

2131

---

how can found motors folt current ? how can disided circuit breakers caoicity and breaking capicity ?

2156

---

design a 3 bit synchronous and asynchronous counter using T- flipflop

1999

---

how to calculate short circuit current for the busbar

1498

---

I am apply the AAI. So i want electrical sample question paper in technical with answer my id is vijayjobsmart@gmail.com

2676

---

What do you mean by a current transformer?

1088

---

difference between servo motor and synchronous motor

2322

---

hai friends i have BSNL JTO exam on next month so if any body have model question paper or give preparation tips to my mail id kumar4486@yahoo.co.in this will helpfull for my future .plz & thank u by kumar

1980

---

i will applied in 1U-1W on 440 volt primary delta side. what is the result of magtic balance test

1777

---

WHAT IS FAULT CAPACITY OF HT MOTOR TERMINAL BLOCK? ANY BODY HAVE ANSWER PLZ....POST IT.

2184

---

hi frds, i m electrical engineer.can i get cdr for electrical engineer if u have then send me on my mail id its jayesh_ee88@yahoo.com.please help me frds

2186

---

How i can decide that HVDC line is best for transmission.

1900

---