Answer Posted / swapnil
with use of open delta connection maintenance of
transformers is possible . If load on two transformers
increase than we can install another transformer and close
the delta in future .
| Is This Answer Correct ? | 45 Yes | 12 No |
Post New Answer View All Answers
A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.
Difference between transition and diffusion capacitance
I am about to write exam in RRB bangalore for the post of section engineer.please provide me with previous exam questions
What is the difference between type1 and type2 relay protection co-ordination for motor feeders
What is proportional controller?
Hello Friends, How can we recognize the CT Star Point is S1 or S2 in case of Electro Mechanical Relays and what is meant by Restraining coil in relays and what is the purpose of that.. thank you in advance..
what is the meaning of number in (11, 31, 61,14, etc. CDG11, CDG31, CDG61, DDT32
Which Class insulation is prefered for the sandwich Busducts ? Why?
how to get electrical supervisor competency certificate in gujarat. i did 3 year diploma in electrical
how to work droop ct in generating station
can i connect the two phases of scott connected transformer,if not why?
why genarator genarating voltage 11 KV?
Why we do 2 types of earthing on transformer (ie:)body earthing & neutral earthing , what is function. I am going to install a oo kva transformer & 380 kva dg set what should the earthing value?
Different STANDARDS (BS, IS, IEC etc) gives different informations on CT specification. How they correspons w r t each other (i.e I mean to say BS provides "knee point voltage" but IS does not, then how can i select CT)
What is dielectric loss?