1KVA transformer of different frequencies of
50hz,100hz,500hz&1000hz. which one of these transformer has
big size? Give reason
Answer Posted / mohd shahid
bhai kishore see here we r talking about same KVA rating
not same KV rating.
here you r equting the KV rating(ie by equating the induced
emfs)
there is a diff between kv and kva hence kindly refer again
to your solution which acco. to me is not correct
| Is This Answer Correct ? | 8 Yes | 3 No |
Post New Answer View All Answers
What is the instrument to check the rotating diode fuse of alternator in running conditions?
If any HVDC line is going with positive & negative(the negative usually have return path of current with earthing electrode). Now the question is if this HVDC earthed electrode which is using as return path and earthed any nearby 400kv or 220kv AC substation equipments. which will be the impact of this on AC substation & its equipment, how severe may be this and what should be the minimum distance require between HVDC earthed electrode and AC substation equipments? It's really an high engineering level question...Dare to answer and increase your knowledge.
What is value of earth resistance required for substation and equipment earthing and what are the reference guidelines
what is deffrence between squirral cage and wound rotor in IM?
When we use air circuit breaker, it has O/L protection ,time delay SC protection, Instataneous SC protection & ground fault protection. They all have some setting range. But what is the suitable/allowable setting for the above protection which will be safe for the equipment? For example-O/L protection setting have a range of (0.4,0.45,0.5,0.55,0.6,0.65,0.7,0.8,0.9,1.0)xIn Time delay SC protection have a range of (1.25,1.5,2,3,4,6,8,10,12)xIn Time delay setting is 0.02,0.1,0.2,0.3,0.4 Instataneous setting is fixed to 20xIn Gound fault setting is given 100A,300A,600A,900A,1200A This setting are for 2500A ACB. So what will be the basic allowable setting for the above protection? is there any formulae to calculate this<
What is the difference between isolators and electrical circuit breakers?
whats the existence of reactive power and when it arises?
What is minimum phase system?
How many double suspension hardware fittings are required on a double circuit transmission tower?
what is the control circuit for operating the clean room air shower
if any body have question paper of railway (section engineering),then plz send me .i will thank of him/her.
Define the three phase formula fuse.
What is the comparison of PILC and XLPE cable
EXPLAIN THE TRANSFORMER MAINTENANCE?
what kind of technical test that i need to learn because i have an interview tomorrow.. please someone help me..