Can anybody tell me what the breakdown voltage is for air
and what it is for transformer oil please?
Answer Posted / rax
the b/d strength of ir is 30kv/cm. the b/d strength of t/f oil depends on the voltage level of the t/r. for a 33/11 t/f the b/d should be above 55kv
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
what will be happen if earth point is being used for as a neutral point for raw power , and same will be used for ups earthing
i ha done my 10th with 71% ,ITI with 81% 11th with 75% 12th 43% apprentiship with 71% in SAT i secure 1390 ,TOEFL 27 i was refused four times and in all me interview visa officar told that i am not Qualify for study in USA but i completed my 12th yes i got low persentage in my 12th but i seen to much student they already got visa with them 3 or 4 backlocs so why they are refused me ?
What is the difference between Generator Differential Relay and Transformer Differential Relay?
How much dc volt applied in cathodic protection system?
Who are the manufactures those manufacturing 3Cx2.5sqmm FRLS cables. I heard about FRLS technology adopted only in wires useful for wirings
what is inter connected dc generator?
please forward me the type of questions which would rise while me attending to 33KV Electrical License to my mail ID:vadrevu_raghava@yahoo.co.in
what is the common earth
how a.c. genarator control power factor when its conected to grid supply by incrising or decresing excitation voltage.
Why Neutral Isolation is required?
What safety precaution are to be taken for avoiding electric hazards ?
if 12v battery get discharged for 2 months after if we put charge it will charge again?how much time it will take to charge?
What Should be the value of Vector Surge angle at Tripping and how to calculate it?
What is power distribution criteria for converting single phase unbalanced residential load to 3 phase star connected balance system. Does total KW converted to 3 Phase. Means Divided by root 3.
What does the term supermesh means?