How to convert electric current in amps (A) to apparent power in kilovolt-amps (kVA).
You can calculate kilovolt-amps from amps and volts, but you can't convert amps to kilovolt-amps since kilovolt-amps and amps units do not measure the same quantity.
The apparent power S in kilovolt-amps is equal to phase current I in amps, times the RMS voltage V in volts, divided by 1000:
S(kVA) = I(A) × V(V) / 1000
So kilovolt-amps are equal to amps times volts divided by 1000.
kilovolt-amps = amps × volts / 1000
or
kVA = A ⋅ V / 1000
What is the apparent power in kVA when the phase current is 10A and the RMS voltage supply is 110V?
Solution:
S = 10A × 110V / 1000 = 1.1kVA
What is the apparent power in kVA when the phase current is 14A and the RMS voltage supply is 110V?
Solution:
S = 14A × 110V / 1000 = 1.54kVA
What is the apparent power in kVA when the phase current is 50A and the RMS voltage supply is 110V?
Solution:
S = 50A × 110V / 1000 = 5.5kVA
The apparent power S in kilovolt-amps (with balanced loads) is equal to square root of 3 times the phase current I in amps, times the line to line RMS voltage VL-L in volts, divided by 1000:
S(kVA) = √3 × I(A) × VL-L(V) / 1000
So kilovolt-amps are equal to √3 times amps times volts divided by 1000.
kilovolt-amps = √3 × amps × volts / 1000
or
kVA = √3 × A ⋅ V / 1000
What is the apparent power in kVA when the phase current is 10A and the line to line RMS voltage supply is 190V?
Solution:
S = √3 × 10A × 190V / 1000 = 3.291kVA
What is the apparent power in kVA when the phase current is 50A and the line to line RMS voltage supply is 190V?
Solution:
S = √3 × 50A × 190V / 1000 = 16.454kVA
What is the apparent power in kVA when the phase current is 100A and the line to line RMS voltage supply is 190V?
Solution:
S = √3 × 100A × 190V / 1000 = 32.909kVA
The apparent power S in kilovolt-amps (with balanced loads) is equal to 3 times the phase current I in amps, times the line to neutral RMS voltage VL-N in volts, divided by 1000:
S(kVA) = 3 × I(A) × VL-N(V) / 1000
So kilovolt-amps are equal to 3 times amps times volts divided by 1000.
kilovolt-amps = 3 × amps × volts / 1000
or
kVA = 3 × A ⋅ V / 1000
What is the apparent power in kVA when the phase current is 10A and the line to neutral RMS voltage supply is 120V?
Solution:
S = 3 × 10A × 120V / 1000 = 3.6kVA
What is the apparent power in kVA when the phase current is 50A and the line to neutral RMS voltage supply is 120V?
Solution:
S = 3 × 50A × 120V / 1000 = 18kVA
What is the apparent power in kVA when the phase current is 100A and the line to neutral RMS voltage supply is 120V?
Solution:
S = 3 × 100A × 120V / 1000 = 36kVA
A 50 kVA transformer can handle about 120.28 amps at 240 volt 3-phase. To calculate that value, we:
Convert 50 kVA to 50,000 VA by first multiplying 50 kVA by 1,000.
Then divide 50,000 VA by 240 volts to get 208.333 amps.
Finally, we divide 208.333 amperes by 3 or 1.73205 to get 120.28 amperes.
To convert amps to kVA in a single-phase power system, you can use the formula S = I × V / 1000 where amperage (I) is in amperes, voltage (V) is in volts, and the resulting apparent power ( s) is in kilovolt-amperes or kVA. On the other hand, for a 3-phase system, you can use S = I × V × 3/1000 for line-to-line voltage and S = I × V × 3/1000 for line-to-neutral voltage. can.
The electrical system pulling 30 amps at 220 V results in 11.43 kVA of apparent power. We can calculate that by multiplying 30 amps by 3 or 1.73205 to get 51.96152 amps. After that, we multiply our product by 220 V to get 11,431.53 VA. By dividing our final product by 1,000, or moving its decimal point three steps to the left, we arrive at our final answer of 11.43 kVA.
3 Phase kVA to amps calculation formula I (A) = 1000 × S (kVA) / (√3 × Vl-l (V)) Amps = 1000 × KVA / (√3 × Volts) A = 1000 kVA / (√3 × V) I = 1000 × 3kVA / (√3 × 190V) = 9.116A.
100 amperes 69kW/kVA To give you an idea, a home supply, single phase with 100A fuse will supply 23kW/kVA, 3 phase supply with 100A fuse will be able to supply 69kW/kVA.
Now we can calculate a kVA to amps table:
| kVA (Apparent Power) | Voltage (220 V) | Amperage (A) |
|---|---|---|
| How many amps is 1 kVA? | 220 V | 4.55 Amps |
| How many amps is 5 kVA? | 220 V | 22.73 Amps |
| How many amps is 10 kVA? | 220 V | 45.45 Amps |
| How many amps is 20 kVA? | 220 V | 90.91 Amps |
| How many amps is 30 kVA? | 220 V | 136.36 Amps |
| How many amps is 45 kVA? | 220 V | 204.55 Amps |
| How many amps is 60 kVA? | 220 V | 272.73 Amps |
| How many amps is 90 kVA? | 220 V | 409.09 Amps |
| How many amps is 120 kVA? | 220 V | 545.45 Amps |
How to Convert Amps to Milliamps (A to mA) There are 1000 milliamps in 1 amp, just like there are 1000 milliamps in 1 meter. So, to convert amps to milliamps, One kVA is only 1,000 volt amperes. Volt is electric pressure. An amp is electric current. A term called apparent power (the absolute value of complex power, S) is equal to the product of volts and amps.
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