what should be the air clearence between phase to phase, phase to earth in Medium voltage switchgear for 3.3kv,6.6kv,11kv,22kv and 33kv? Which is to be referred for this?
1 5213what are the shades for mimic diagram i.e for 3.3kv,6.6kv,11kv,22kv and 33kv? which is the IS for mimic diagram?
2 4858What is Vk and Imag i.e Knee point voltage & Magnetising Current? How to calculate above values? How to define accuracy class 5P10?
7 38137FOR WHICH FAULTS OR CONDITIONS DOES A TRANSFORMER DIFFERENTIAL PROTECTION DOES NOT OPERATE???
10 6769flurescent bulb rating is to 230v,50HZ.now flurescent connected 230v,25HZ.whether nreduced frequency will affect the glowing properties of flurescent.
6 4388what is the effect of connecting three phase supply lines to three phase auto transformer output terminals through a fuse of 10Amp and a circuit breaker (MCB). Is this connection permanently destroy the transformer?
1 1984what is the effect when the shunt field winding is opened in dc shunt motor (i) at the time of starting ? (ii) in running condition ?
4 11608Will u plz give me simple diagram for tube light connection & also function of chock?
TCS, Jindal, Bhushan Power Steel, Windmoller, Dalmia Group, Practical Viva Questions,
8 20967Post New Electrical Engineering Questions
what is the illumination level required for child play area?
what are the advantages of Horizontal isolation breakers v/s vertical isolation breakers in medium voltage switchgear class.
if grounding is notdone at regular intervals for long distance transmission, will the load connected at distribution end receive voltage during negativehalf cycle of the sine wave?
Difference between low impedance and high impedance Restricted Earth Fault
how to select diiferent power transformers of same capacity on no load loss and full load loss by economical point of view.?
I have 4 busbar of 1000 ampere. we use 4 busbar to make 4000 ampere in one phase.my problem is that when we applied 60% load on that then busbar produced high noise.what is the reason of that and how can i minimize that noise.
impliment (AB)`+C to transistor representation
how many Classification of fire extinguisher
why induction motors are rated at 0.8 power factor.
What is EHT tariff or Power factor Tariff ????
ii) A shunt motor supplied at 230V, runs at 900 rpm when the current is 30A. The resistance of the armature is 0.4 ohms. Calculate the resistance required in series with the armature to reduce the speed to 600 rpm, assuming that the armature current is then 20A. [12]
does any one know where we can purchase insulation oil for high voltage oil filled cables
What is notching in dc machine?
working principles of cf lamp,incandescentlamp and f lamp?
why various test are performed on electrical panels & power cables before commissioning on site & what are these test???
