Quick Answer: How do you calculate the full load of a 5 hp motor?

What is the full load current of a 5 hp motor?

AC Motor Full Load Amperes

HP 200 Volts 208 Volts
5 17.5 16.7
7.5 25.3 24.2
10 32.2 30.8
15 48.3 46.2

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

Look at the above formula, the three-phase full load current is equal to Power divided by the 3 times of product of line to neutral voltage and power factor. Here three-phase full load current is equal to the power divided by 1.732 times of line to line voltage and power factor.

How do you calculate the maximum load of a motor?

Motor loads (Secs. 430-24, 430-25, and 430-26) When calculating motor loads, you need to know how to convert a motor’s current rating (given in amps) to a VA rating. To do this, multiply the motor’s nameplate amperage by the supply voltage.

How is HP load calculated?

Use this formula to estimate motor horsepower. Horsepower(hp)= Voltage x Amperage x % EFF x power factor x 1.73/746.

How many kW is a 5hp motor?

Hp to kW Conversion Table

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Horsepower Kilowatts Rounded Kilowatts
1 hp 0.745699872 kW 1 kW
5 hp 3.72849936 kW 4 kW
10 hp 7.45699872 kW 7 kW
15 hp 11.18549808 kW 11 kW

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

How do you calculate load?

Calculating an Electrical Load in a Simple Circuit



Let Power = Voltage * Current (P=VI). Let Current = Voltage/Resistance (I=V/R). Apply Kirchoff’s Second Law, that the sum of the voltages around a circuit is zero. Conclude that the load voltage around the simple circuit must be 9 volts.

What is full load amps on a motor?

Full Load Amps, or F.L.A., represents the amount of current the motor is designed to draw at the rated horsepower. In the example nameplate, this means that when the motor is running under a full load at 230 volts, we can expect it to draw 5.4 amps.

What is the efficiency formula?

Efficiency is often measured as the ratio of useful output to total input, which can be expressed with the mathematical formula r=P/C, where P is the amount of useful output (“product”) produced per the amount C (“cost”) of resources consumed.

How do you measure a breaker for a 3 phase motor?

Breaker size must be rated for a minimum of 125% of the full-load current of the motor it is protecting, rounded up to the next standard breaker size. For example, the full-load current of a 5 HP motor at 460V is 7.6 Amps. The breaker must be sized for 7.6 * 1.25 = 10 Amps .

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How much electricity does a 2 hp motor consume?

Here, we have a 1 HP motor. So, 1 HP for 24 hour = 746×24= 17904 Watt-hour which is equal to 17904/1000= 17.904 units.



How many watts does a 1 hp electric motor use?

Horsepower Watts Rounded Watts
2 hp 1491.399744 W 1491 Watts
3 hp 2237.099616 W 2237 Watts
4 hp 2982.799488 W 2983 Watts
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