How many amps does a 3 HP 3 phase motor draw?
AMP DRAW BASED ON HORSEPOWER
| HP | 1 Phase Amps | 3 Phase Amps |
|---|---|---|
| 115 volt | 575 volt | |
| 3 | 34 | 3.9 |
| 5 | 56 | 6.1 |
| 7-1/2 | 80 | 9 |
How many amps does a 7.5 kW 3 phase motor draw?
Three Phase Motors
| MOTOR RATING | HP | |
|---|---|---|
| 4.0 kW | 5.5 | 14 |
| 5.5 kW | 7.5 | 19 |
| 7.5 kW | 10 | 25 |
| 9.3 kW | 12.5 | 32 |
How much current will a motor draw?
Calculate the amps used by dividing the wattage by the voltage. For example a 500-watt motor — running on 50 volts — will draw 10 amps. A motor with the same wattage — running on 20 volts — will use 25 amps. This is the theoretical number of amps used by the motor.
How do you measure 3 phase current?
kVA = kW/pf You should notice that this is the exact same formula that was used above for single phase systems. You should then follow this formula up by dividing the kVA by the voltage (your VLN in the case of a 3 phase system) in order to calculate the current.
How many amps does a 5hp 3 phase motor draw?
13.64 amps
A 5 HP motor at 230V, 3PH is12. Using the formula above, multiply 12.4 amps by 10% for a result of 1.24. Add this total to 12.4 for a total of 13.64 amps.
How much current would a 1.5 HP 240v motor draw?
The 1.5 HP Baldor motor that turns at 1725 will draw 18 amps according to its name plate.
How much current does a 1hp motor draw?
1 hp =746 watts. Watts=voltage X amperage. 746/208=3.59 amps.
Why motor is drawing more current?
Electrical overload or over-current is caused by an excessive current flow within the motor windings, exceeding the design current which the motor is able to carry efficiently and safely. This can be caused by a low supply voltage, resulting in the motor drawing in more current in an attempt to maintain its torque.
How many Amps does a 7.5 kW 3 phase motor draw?
What is the starting current of 1 HP 3 phase motor?
For a 1 HP 3phase induction motor draws a current =W /V, so 1 HP is equal to 746 watts, or rounded off to 750 watts, so it will be 750 /415 volts =1.7 amperes, approximately and at a powerfactor at unity means 1.
What is the formula to convert hp to amps?
Knowing that we can write hp to amps formula for direct current (DC) as: I = P * 746 / (V * η) .