how we can calculate the transformer size.
Answer Posted / sachin
actually at the time of transformer rating decided the
following factor to be consider
1.Connected Load
2.Power fACTOR
3.fUTURE eXPANSION
KW=KVA*P.f
630=KVA * 0.8
KVA = 630/0.8
KVA = 787.5 KVA
So the Transformer size is 800KVA
THIS CALCULATION IS EXACTLY CORRECT
BUT FOR FUTURE EXPANTION WE CONSIDER 30 % MARGINE FOR THAT
| Is This Answer Correct ? | 80 Yes | 13 No |
Post New Answer View All Answers
What are the different types of hydro schemes?
at which voltage level arcing ground is occurs ??????????
Which device is used for the source of emission of electrons in a crt?
why capacitive load is not used in routine life????any reason is there ??????
What is meant by impedance? difference between high & low impedance ?
what is the meaning of vcc
The advantages of Magnetic flux leakage technique over Ultrasonic technique for non distructive testing of material.
I need to connect a synchronous generator to the grid using automatic synchronization and two circuit breakers (one for synchronization, one for end connection to the grid), how to determinate the required diameter of the cables?
when measure the core loss of three phase distribution transformer or three phase reactor loss, one phase shown negative watt loss. why??
Dear sir, In our plant have Station Transformer having capacity,i want to know, why LV side 40 - 40MVA is given? & how we can get 6.3 KV supply from tertiary(i.e. Open delta connection), Vector Group YNyn0 - yn0 +d MVA Rating 80MVA / 40 - 40MVA + 26.7MVA Voltage rating 420 (Tap range +6,to -10)81.25% /11.5KV - 11.5KV +6.3KV
How is operate breaker failure scheme in substation
what is calculation mathod/formaulla for deciding Size of busbar (Copper/ aluminum)for L.T. panel on Various Fault level like 50kA,25kA,10kA
How good are you in resolving the commercial issues to Employer's advantage?
what could be the RMS value and average value of a 4 phase sine wave?
In our factory so many iron pillors are exists for supporting the shed/Hangar. If do more no of earthings at one piller instead of doing more earth pits in many locations and running earth strip around the hanger, I can save the money. Please suggest this method is acceptable as per Is specifications though the Earth resitance of the farthest piller is with in the limits as per IS specifications.