# How do you calculate the full load current of a 3 phase motor?

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## How do you calculate 3 phase load current?

For 3-phase systems, we use the following equation: kW = (V × I × PF × 1.732) ÷ 1,000. Again, assuming unity PF and solving this equation for “I,” you get: I = 1,000kW ÷ 1.732V.

## What is the formula for the full load current of a 3 phase transformer?

Three-phase transformer current calculations

The full load current I(A) in amps is equal to 1000 times of transformer rating S(kVA) in kVA divided by the multiplication of root 3 times of line to line voltage V(V) in volts.

## What is full load current of motor?

Definition of ‘full load current’

A full load current is the largest current that a motor or other device is designed to carry under particular conditions. … A full load current is the largest current that a motor or other device is designed to carry under particular conditions.

## How many amps is 3 horsepower?

Common Horsepower to Amps Conversions

Horsepower Amps Voltage
3 HP 20.7 A 120 V
3.5 HP 24.2 A 120 V
4 HP 27.6 A 120 V
4.5 HP 31.1 A 120 V

## How many amps does a 5 HP 3 phase motor draw?

AC Motor Full Load Amperes

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HP 200 Volts 380-415 Volts
3 11 6.1
5 17.5 9.7
7.5 25.3 14
10 32.2 18

## What is full load current of a 3 phase motor?

For three-phase, full load current for the resistive load is equal to the three-phase power divided by 1.732 times of voltage. Here power factor will be unity for resistive loads. Full load current I, I =P.

## What is the formula of KVA to kW?

In other words, volt-amps x power factor = watts. Similarly, KVA*PF = KW, Or kilovolt-amps times power factor equals kilowatts.

## What is the apparent power formula?

Apparent power: S = V x I (kVA)

## What is the full load current of a 1 hp motor?

Full Load Current: Three Phase AC Motors

Motor Horsepower Motor Ampere
1 230V 460 V 4.2 2.1
1-1/2 230V 460V 6.0 3.0
2 230V 460V 6.8 3.4
3 230V 460V 9.6 4.8

## What is full load power?

The full load of a power supply refers to the maximum operation ratings of the power supply. If it is supplying the rated current (same as maximum current) at the rated voltage, then the load that is connected is the full load.

## What is a full load current?

A full load current is the largest current that a motor or other device is designed to carry under particular conditions. … A full load current is the largest current that a motor or other device is designed to carry under particular conditions.