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I want to apply for ONGC recruitment 2012 .I am BE Electrical but it is mentioned that to apply for this post you have to have Electrical supervisor certificate .so please tell me from where can i get such certificate ???
1 3406is it possible for different brand of H.V transformers to run or operate in parallel to each other? if so how much disturbance can this affact the H.V bus bar?
2132how did i get the competency certificate as electricle supervisor. iam completed my b.tech.but i dnt have any experince, this certificate is required for applyng ongc mangement trainees. what should i do sir please suggested me
ONGC,
1902How can we calculate No load and full load torque of electrical machines, i.e. motor or alternator?
1 4028what is the use of providing earthing for tanks? i know for lightning we use earthing ? Here one of my ONGC project there is no need of lightning protection and there is no power connection near by tank in that situation also ONGC asking earthing for tanks but we didn't understanding why they asking earthing? is anybody tell exact answer?
4 5748If two Transformers are connected in parallel having impedance of 50KA in both transformers will the impedance increase or decrease after connecting transformers in parallel?
2064What is the formula for calculating impedance of transformers connected parallel at fault level 50KA?
2088Post New Electrical Engineering Questions
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why impedance relay is used for medium transmission line protection
in the directional overcurrent and earthfault protection,normally we are setting the angle 45 deg lead for phase fault overcurrent and -45 deg lead for earthfault fro forward direction.but both the fault are operating on the same angle region only.why?how the relay will response?
Why can't we parallel the secondary circuits of two voltage transformers?
where solid grounding and where grounding through ngr done and why?
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How would you relate your key competencies to this position?
iam preparing for rrb section engineer post in electrical branch.suggest the right textbook for my reference.fromwhere i will get the previous q.papers?
How do we arrive at selecting reactive capacitance value as 30% of h.p rating of motor?
