Can anybody tell me what the breakdown voltage is for air
and what it is for transformer oil please?
Answer Posted / sri
BDV of new oil should be more than 30 KV.Below 30 kv is not accepted
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
Dyn1 transformer vector group testing how to do
What is the BS(British Standard)code for 11kv motor
When can we take Neutral as common neutral link?
how is working bearing heater?
I have a drawing of a wound rotor induction motor for a crane. This crane motor has 5 forward speeds & 5 reverse speed implemented of course with different amount of resistance for each speed setting selected. What has got me scratching around is the fact that 8 of the 10 speed selections switch in uneven (unbalanced) amounts of resistances on each of the 3 connections to the motor's rotor.Can this be possible? I would have assumed this would produce unbalanced rotor currents and therefore vibration in the motor. I would greatly appreciate anyone's comments on this. Many thanks, Confused.
On what cycle does thermal power plant operate?
how to produsing geretor power
can anybody sent me power grid questions. what subject should i prefer for preparation?
all interview questions with answers of ntpc (2000-2009
1.25 kg of hydrogen are burnt with stiochiometric air, the mass of air in kg required is
can someone explain that how the speed of the protection system affects the fault level calculation?
what is effect of length of air gap on performance of dc motor and generator?
A TRANSFORMER 440/400V,DELTA/STAR CONNECTED.THE NEUTRAL CONNECTED WITH GROUND CABLE THAT IS DIRECTLY CONNECTED TO THE PANEL,FROM PANEL IT IS CONNECTED EARTH PIT.IS IT RIGHT? IF IT IS RIGHT LEAKAGE CURRENT AFFECTED.SECONDATY IS PROTECTED WITH EARTH LEAKAGE RELAY.
What is George phenomena to start the synchronus machine?
what is the calculation method to design core and winding of a 200kva 3phase distribution transformer?