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Calculate LT side current

Created by: Chetan2490 at: 5/27/2014 2:16 PM (5 Replies)

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5/27/2014 2:16 PM
Chetan2490 Advanced Member Joined: 5/12/2014 Last visit: 9/9/2020 Posts: 149 Rating: (16)	Hellooo, How to calculate LT side current of transformer???

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5/27/2014 5:51 PM
Vithani Platinum Member Joined: 7/8/2009 Last visit: 8/5/2024 Posts: 1976 Rating: (477)	Chetan2490 Hellooo, How to calculate LT side current of transformer??? Dont you think you are asking very much basic question? And that too, too many?? Anyways, for calculation, depends upon which data you already have. If you dont have any data, go and read name plate If you have data like voltage at both side, current at ht side, power rating - apply basic electrical formulas and you will get everything you wish for Devesh Vithani
	I dont Like people driving Fast, thats the reason I overtake them ;)
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5/27/2014 6:22 PM
aakash parashar Posts: 28 Rating: (4)	Hi V1/V2=I2/I1=N1/N2=E1/E2 From here we can calculate the LT side current if we know the either vltg on HT side or turns ratio' regards aakash
aakash parashar Posts: 28 Rating: (4)
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5/28/2014 6:23 AM
jeet2907 Posts: 235 Rating: (52)	Chetan2490 Hellooo, How to calculate LT side current of transformer??? Dear, Its a very simple to calculate primary and secondary current of transformer, If you have KVA,PRIMARY VOLTAGE, SECONDARY VOLTAGE then you can easily calculate the same. Now take one example, KVA- 2500, PRIM.VLTG- 22KV, SEC.VLTG- 433V. There for IP(PRIM.CURRENT) = 2500 / 221.732 = 65.60A, Similarly for secondary current IS = 25001000 / 433*1.732 = 3333.52A Hope this calculation is helpful to you and now know need to extra calculation for the same.
jeet2907 Posts: 235 Rating: (52)
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5/28/2014 8:22 AM	Rate (0)
Vithani Platinum Member Joined: 7/8/2009 Last visit: 8/5/2024 Posts: 1976 Rating: (477)	jeet2907 If you have KVA,PRIMARY VOLTAGE, SECONDARY VOLTAGE..... I was just wondering... if you have alll this data.. why dont you have secondary current only???
	I dont Like people driving Fast, thats the reason I overtake them ;)
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This contribution was helpful to 1 thankful Users @nkur

5/30/2014 3:28 AM
@nkur Posts: 202 Rating: (16)	Chetan2490 Hellooo, How to calculate LT side current of transformer??? Hi there As the CT are connected before the incomer hence you would be having all the data for the incomer so just use the same current rating as available for the incomer
@nkur Posts: 202 Rating: (16)
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