Answer / pundlik wanwe

Transformer properties are governed by the 2 Indian
Standards.1) IS 335 & 2)IS :1866
IS 335 is for new oil
IS 1866 is for oil in service
For the transformer in service as long as oil in
transformer is ok as per IS 1866 there is no requirment as
such for filteration of oil, but you have to follow the
manufactuer's instructions regarding this

Answer / geno peter

well , if the BDV is found ok, then not required to filter
the oil

Answer / ramjeet singh

Yes; at least once in a year it should be filtered and
tested as per IS 1866-2000 to withstand not only BDV,
moisture but all the 9 test parameters; as at least we
should know what has happened in terms of oil
characteristics within a year.

Answer / transformer oil filtration

<a href="http://oilfiltrationronyyee.blogspot.in/">Transformer oil filtration</a> :- We specialize in Transformer oil filtration & alternative oils filtration -recycling solutions for a global market. We also offer high-quality products for customers all around the world from different industries. =============

Answer / yokesh

at TNEB standards 40KV @1 min its a with stands the oil in
good condition. gap between two poles is2.5mm.

How can identify meter AC or DC without use of symbel?

4 Answers  

last week we did the REF relay test by closing single pole (R phase) of CB and apply 380V at the primary of delta transformer. we get 33A at the primary of the R phase star end. but we get 380A at both R an B in delta side. how and why?

1 Answers   Siemens,

when the flux enters into saturation mode then what will be the secondary voltage of the normal t/f?....high or low ? explain ...how?

1 Answers  

corona happens more in summer or winter?

3 Answers   MAHINDRA,

Hi,iam a diploma in electrical engineering.rtd from indian air force in apr 2007.prsently working in reliance next link as a network maintenance engineer since 2007,can i get a job in motherson sumi.

0 Answers   Motherson, Motherson Molds and Diecasting Ltd.,

Explain about 3 phase motor fault current calculation with examples?

0 Answers   QTC,

what is the role of energy meter in distribution system ?

0 Answers  

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

0 Answers  

How to take of Transformer oil Break down voltage test?

2 Answers  

In view of Electrical Engg. What is the use of SCR(Silicon control rectifier)

11 Answers  

In a 11000/440 V transformer, when any one phase of 11 KV supply fails (ie., single phasing), what happens to the secondary voltage and why?

3 Answers   Secure Meters, TCS, Torrent Power,

number of I/O devices in siemense plc

0 Answers   EB,