Transformer Secondary maximum current (max. load)
Answers were Sorted based on User's Feedback
Answer / p.senthil kumar
Transformer secondary Max.current depends on it's KVA
rating only.
1 K.V.A = 1.34 Amps.
accroding to this we can calculate the full load current of
the transformer.
| Is This Answer Correct ? | 2 Yes | 1 No |
secondary full load current
if secondary is star/delta connection
X: 118.09A Y: 118.09A Z: 118.09A
| Is This Answer Correct ? | 2 Yes | 2 No |
Answer / me
we have a 3 phase transformer rated as:
45 KVA 60 Hz
Primary volt: 480v
Secondary volt; 120 v single phase, 220 v (L-L)
How can I calculate the Secondary maximum current (max.
load)
I have measured the Secondary current with clamp ammeter as
follow;
X: 72.6 A; Y: 64.6A; Z: 68.1A
Regards
| Is This Answer Correct ? | 3 Yes | 4 No |
( Re: WHAT SHOULD BE THE RATING OF MCCB FOR 415V,3Ph,50KVAR CAPACITOR BANK Answer # 1 The capacitor current would be kvar x 1000 / (415 x sqrt3). This would be 70a approx. The MCCB selected should have *atleast 1.4 times this current i.e. 1.4 x 70= 98. So you should choose at least 100 A mccb.) regarding to this answer,i would like to know why the current have to times 1.4 to get the right amphere for the mccb.hows the formula to get the 1.4??tq
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