# Formula&Info

##### ElectricalPowerConversion

This page provides range of electrical formula to convert the electrical units into another electrical units. These formulas are able to help you determine the suitable generator size for your application.

Units and Notation

Voltage, V

volt

V

Current, I

ampere

A

Power

kilovolt-Ampere

kVA

kilowatt

W

horsepower

hp

Power Factor

Power factor

PF

Efficiency, η

percentage

%

Shortcut conversion for 3 Phase, 415V, 50Hz, 0.8PF voltage supply only.

kVA

= kW x 1.25
= I x 0.72

kW

= kVA x 0.8
= I x 0.58

I

= kVA x 1.39
= kW x 1.74

##### ActualConversionFormula:

UNIT

SINGLE PHASE

THREE PHASE

Kilovolt-Ampere (kVA)

V × I
1000

V × I × √3
1000

Kilowatt (kW)

V × I × PF
1000

V × I × √3 × PF
1000

Ampere (kVA is known)

kVA × 1000
V

kVA × 1000
V × √3

Ampere (kW is known)

kW × 1000
V × PF

kW × 1000
V × √3 × PF

Ampere (hp is known)

hp × 746
V × PF × η

hp × 746
V × √3× PF × η

Horsepower (hp)

V × I × PF × η
746

V × I × √3 × PF × η
746

##### ElectricalPowerConversionCalculator

We have develop an electrical unit conversion calculator to provide a hassle free calculation in order to determine the correct generator size for every purpose.