Interested to Buy Any Domain ? << Click Here >> for more details...
I HAVE A 1 MVA TRANSFORMER, I WANT TO KNOW THE FAULT LEVEL OF
THE SYSTEM ( WHAT IS FAULT LEVEL PLEASE EXPLAIN WITH EXAMPLE)
- 5 Answers
- 24227 Views
- Alstom, I also Faced
- E-Mail Answers
Answer Posted / satyajit sadhu
FAULT LEVEL MEANS SHORT CIRCUIT CAPACITY OF TRANSFORMER.YOU
HAVE NOT MENTIONED THE VALUE OF TRANSFORMER RATIO & % OF
IMPEDENCE.ASSUMED VOLTAGE RATIO= 11KV/415 V & % OF
IMPEDENCE=6%.
RATED FULL LOAD AMP OUTPUT =1MVA/(415 X 1.732)=1391.25A
SO SHORT CIRCUIT CAPACITY OF TRANSFORMER= 1391.25/6%
=23187.44 A
IF ANY FAULT OCCURED THEN THE ABOVE TRANSFORMER WITHSTAND
THE SHORT CIRCUIT CURRENT OF 23187 A.
| Is This Answer Correct ? | 33 Yes | 4 No |
Post New Answer View All Answers
how do we calculate length of starting time and repeated starting of a direct online starter?
According to underground cables a) stress b/w sheath & conductor is high b) inrush of core & conductor
Minimum IR value of 1.1 kv grade 3.5c (300, 240,185,150,120,95,70,50,35,25) sqmm Aluminium XLPE cable and 4c (16, 10,6 & 4) sqmm cu arm cable between RY,YB,BR,RN,YN,BN,RE,YE,BE & NE.
What is the function of the generator exciter?
How many types of circuit loads are there in a common electrical circuit?
Can I use star delta connected induction motor for dual supply voltage?
Is it possible to measure the voltage of a battery from a single terminal?
Why in metering Ct for ammeters ct secondary side is grounded for each Ct but not in case of CBCT (Core balance current transformer)..kindly some1 highlights the reason..is it because net flux is zero?
What is clock position of Transformer?what are the clock positions are there?and what is different of them?
What are the three types of compensators?
What are the effects of electrical faults?
In case of generator when we consume more power produces by it why load on generator increase and starts sound more. and how it is adjusted..
how to calculate vfd o/p voltage by frequency
what is the power rating of CPU, CRT type moniter, LCD type moniter,scanner Approx.
What is your acheivements
