if HT side voltage is high current is low . and LT side
voltage is low current is high please explian.
Answer Posted / bhavesh chauhan
Voltage and Current are inversely proportional to each other in Transformers.. As the value of voltage increases current decreases, and as the value of voltage decreases the current value increases.... I Will make you count..
Practically i work in a 220/66/11 kv power station.
I have a 100 MVA Transformer which is a Step Down X'mer. The H.V Side of the X'mer gets 220KV input and L.V of the X'mer gives 66KV output...Now to calculate ............
The Current for H.V Side according to P=VI
we have P=100 MVA
V=220 KV
I=?
I= 100 10^6 /1.732 X 220 X 10^3 = 262.24 Amps
Similarly for L.V
I= 100 10^6 /1.732 X 66 X 10^3 = 874.79 Amps
These are the Actual H.V and L.V Current reading of a working transformer... Which proves that when Voltage decreases current increases..........Thank you
| Is This Answer Correct ? | 6 Yes | 1 No |
Post New Answer View All Answers
in ring main system we use the isolater b/w transfer bus and main bus if we r not use isolatar than wat will be the effect in our sys.
A commercial Building is designed with 14th floor levels with indoor substation of three phase transformer with rated capacity of 1000 Kva.The transformer delivered 65% of its rated capacity at 0.67 power factor lagging.Because of low power factor, the power customer was penalized and certain cost was charged accordingly based on every point percentage lower than 85%.This situation may repeatedly happen on the succeding energy bills of power customer.The power customer is desired to improve its historical power factor of 0.67 lagging and no further penalty be impose by the local power company on the next bill. Q: Identify the appropriate solution you want to offer to Client?.Justify SCIENTIFICALLY and MATHEMATICALLY the principles behind the solution.
where solid grounding and where grounding through ngr done and why?
what is data block in plc ? How the values of data block are written and read by hmi ? what is the difference between function and function block ?
plz tell me,ht and lt panel terminals in substations explain beiefly
Define average demand?
What are the different sign conventions used in electric circuits?
What is grid collapse? what is the reason for it?
How to synchronization will be done between two DGs ?
what are the different sizes of U.G. cable & where these cabl;es are used according to voltage ..
What are the major reasons for balancing hydro-thermal mix?
What is a signal flow graph?
do any one help me to get "C" license,, i have doubts ,,, if mediators ter pls call me,, my no is 8056640042
Explain bypass capacitor?
write encoder 17 pins details? pin a;b+, pin b;w+,..pin s & t. what is the meaning of b+, w+? explain;