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# What determines the torque of an electric motor?

## What determines the torque of an electric motor?

Slip, the difference between actual and synchronous speed, is needed to produce torque, the twisting force that causes rotation, in induction motors. The magnetic field that surrounds the rotor of these motors is caused by induced current.

### Do bigger motors have more torque?

In summary, a low KV motor has more winds of thinner wire – it will carry more volts at less amps, produce higher torque and swing a bigger prop. So yeah, lower kv motors have thinner wires. Thinner wires mean more resistance and less current for the same voltage.

What is the torque of 1 hp motor?

Product Specification

Speed 720 rpm
Power 1 HP
Torque 25 Nm
Voltage 415 V +/- 10%
Phase Three Phase

Do electric motors have constant torque?

So electric motor torque is not constant. There is a region of operation in conjunction with the controller and for certain load conditions which will give the appearance of constant torque.

## Does higher KV mean less torque?

Kv allows you to get a handle on the torque that can be expected from a particular motor. Torque is determined by the number of winds on the armature and the strength of the magnets. A low Kv motor has more winds of thinner wire—it will carry more volts at fewer amps, produce higher torque, and swing a bigger prop.

### How much torque does an electric motor have?

Speed of electrical motors – output power and torque Power Power Motor Speed (rpm) Motor Speed (rpm) Motor Speed (rpm) 3450 2000 1750 1000 Torque Torque Torque Torque hp kW (lbf in) (lbf ft) (Nm) 1 0.75 18 1.5 14.2

What is the difference between HP and torque at 30 Hertz?

At 30 hertz, the HP is just 50 percent of the 60-hertz HP. The reason this occurs is because the total torque produced per unit of time is also reduced by 50 percent because of fewer motor rotations.

What is the percent of horsepower and torque?

The Y axis is the percent of HP and torque. At 60 hertz (base motor speed), both HP and torque are at 100 percent. When the VFD reduces frequency and motor speed, it also reduces voltage to keep the volts/hertz ratio constant.

## What’s the difference between base motor speed and torque?

The X axis is motor speed from 0 to 120 hertz. The Y axis is the percent of HP and torque. At 60 hertz (base motor speed), both HP and torque are at 100 percent. When the VFD reduces frequency and motor speed, it also reduces voltage to keep the volts/hertz ratio constant.