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Electrical Power Calculator

⚡ Electrical Calculator

Professional power conversion tools

KVA
V
A
💡 Example:
Calculate current for a 10 KVA single-phase load at 240V:
I = (1000 × 10) ÷ 240 = 41.67 Amps
📐 Calculation Formulas
Single Phase:
I = (1000 × S) ÷ V
Where I = current in amps, S = apparent power in KVA, V = voltage in volts
Three Phase (Line to Line):
I = (1000 × S) ÷ (√3 × VL-L)
For balanced loads, VL-L = line to line RMS voltage
Three Phase (Line to Neutral):
I = (1000 × S) ÷ (3 × VL-N)
VL-N = line to neutral RMS voltage
KVA
PF
W
💡 Example:
Convert 90 KVA with power factor 0.9 to watts:
P = 1000 × 90 × 0.9 = 81,000 Watts
Note: Enter power factor as decimal (0.9) or percentage (90)
📐 Calculation Formula
KVA to Watts:
P(W) = 1000 × S(KVA) × PF
The real power P in watts is equal to 1000 times the apparent power S in KVA, times the power factor PF
KVA
PF
KW
💡 Example:
Convert 25 KVA with power factor 0.85 to KW:
P = 25 × 0.85 = 21.25 KW
📐 Calculation Formula
KVA to KW:
P(KW) = S(KVA) × PF
The real power P in kilowatts is equal to the apparent power S in KVA times the power factor PF
KVA
VA
💡 Example:
Convert 5 KVA to VA:
S = 1000 × 5 = 5,000 VA
📐 Calculation Formula
KVA to VA:
S(VA) = 1000 × S(KVA)
The apparent power S in volt-amps is equal to 1000 times the apparent power S in kilovolt-amps

FAQS

kVA to amps formula three phase?

For three-phase systems: Amps = (kVA × 1000) ÷ (Voltage × √3). The √3 factor (1.732) accounts for the phase relationship in balanced three-phase electrical loads.

A kVA to amps calculator requires kVA rating, voltage, and system type (single/three-phase) as inputs. Simply enter these values and the calculator automatically applies the correct conversion formula.

1 kVA equals 4.17 amps at 240V single-phase or 2.4 amps at 240V three-phase. The exact amperage depends on your system voltage and phase configuration.

Generator kVA to amps uses the same formula: Amps = (kVA × 1000) ÷ Voltage for single-phase systems. Always check your generator’s nameplate voltage for accurate amperage calculations.

kVA to amps chart?

A reliable kVA to amps chart includes common voltages (120V, 240V, 480V) for both single and three-phase systems. Charts typically cover 1-100 kVA ranges with corresponding amp values clearly specified.

1 kVA equals 1000 watts only when power factor is 1.0 (unity). In real applications, watts = kVA × power factor, where power factor ranges from 0.8 to 1.0.

5 kVA converts to 4000-5000 watts depending on power factor (typically 0.8-1.0). Multiply your kVA by the equipment’s specific power factor for accurate watt calculations.

15 kVA equals 36.1 amps at 240V three-phase or 18.1 amps at 480V three-phase. Use formula: Amps = (15 × 1000) ÷ (Voltage × 1.732) for three-phase calculations.

See Also

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