Electrical Engineering - Transformers - Discussion
Discussion Forum : Transformers - General Questions (Q.No. 1)
1.
What kVA rating is required for a transformer that must handle a maximum load current of 8 A with a secondary voltage of 2 kV?
Discussion:
121 comments Page 7 of 13.
MOHAMED MANSOOR said:
1 decade ago
V2*I2=2*8=16.
Here load current=I2=8A
Here load current=I2=8A
Jitendranath panda said:
1 decade ago
s/v - 2kv*8A = 16kva.
So 16kva or higher power transformer required.
So 16kva or higher power transformer required.
Sindhuri said:
1 decade ago
Power = Voltage*Current.
Power on load side = V2*I2.
Here P = 2kv*8A.
=16kvA.
Power on load side = V2*I2.
Here P = 2kv*8A.
=16kvA.
Krishna said:
1 decade ago
Transformer output power rating in KVA.
KVA=VOLTAGE X CURRENT =2X8=16.
KVA=VOLTAGE X CURRENT =2X8=16.
Athi said:
1 decade ago
We know that
p=VIcosQ for single phase and p=root3*v*i*cosQ for three phase
So power = 2000*8*0.95
= 15200= 15.2kw
Then
We know that power factor=KW/KVA .
Consider 0.95 PF for transformer.
0.80 PF for generator.
So KVA=KW/PF=15200/0.95 = 16KVA.
p=VIcosQ for single phase and p=root3*v*i*cosQ for three phase
So power = 2000*8*0.95
= 15200= 15.2kw
Then
We know that power factor=KW/KVA .
Consider 0.95 PF for transformer.
0.80 PF for generator.
So KVA=KW/PF=15200/0.95 = 16KVA.
Vinoth said:
1 decade ago
What is mean of isolation transformer?
Md sultan rashid said:
1 decade ago
Isolation transformer is a transformer, which is used for transfer electrical power from a source of alternating current power to some equipment or device.
Vishal said:
1 decade ago
What is mean of isolation transformer?
Raihan said:
1 decade ago
The 3rd winding of a transformer called ?
Jexy said:
1 decade ago
If a 1000kva 200hz transformer is operating at 50hz, its kVA rating is? please solve.
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