# Quick Answer: How Long Can A DC Motor Run Continuously?

## How much can you Overvolt a DC motor?

You can run at 48 volts as long as 1) you don’t exceed the maximum current, and 2) you don’t exceed the maximum speed.

I regularly run 24 volt motors from a 120 or 160 volt DC bus, using a trans-impedance amplifier to control the current..

## How long can you use a DC motorized treadmill continuously?

Average run cycle is 10 hours. You may have this question in your mind so let’s know. As an estimate, 7,500 hours brush life is normal for general purpose, medium horsepower DC motors with good commutator film with commutator surface speeds in the range of 2,500 to 4,000 feet per minute.

## Can a 12 volt motor run on 6 volts?

Same as with the motor, if you provide 6 V to 12 V motor, your motor will run on half of its rated speed and the torque will also reduce. … So, if you want to avoid the heating of motor, you have to cut down the load by 50%. But the motor still runs on half of its speed.

## How long do induction motors last?

15 yearsAssuming that the motor is being operated under normal conditions, sized correctly for the application and within the manufacturer’s design requirements, it can last 15 years or more.

## Do brushless motors wear out?

Brushless DC motors typically have an efficiency of 85-90%, while brushed motors are usually only 75-80% efficient. Brushes eventually wear out, sometimes causing dangerous sparking, limiting the lifespan of a brushed motor. Brushless DC motors are quiet, lighter and have much longer lifespans.

## Can I run a 12V motor on 5V?

Applying more than 5V will make the motor speed up. … In a nutshell, there is nothing wrong with running a 12V motor on anything below 12V, but it will be weaker, and therefore slower, or even may fail to start depending on the load.

## How many hours can a DC motor run?

Thus, as long as your load is the same, theoretically, motor draws same current. NOTE: Of course current change when the Armature voltage changes, but this is negligible. 75A/h means “75A for one hour.” Maximum. So if your motor, on average, draws 1.5A, and ran continuously, then it should run for 75/1.5 = 50 hours.

## Is 1.5 hp good for treadmill?

As a general rule a person under 90kgs that wants to walk and do light jogging should get a treadmill with at least 1.5hp (continuous). If you weigh more or intend to jog, run or sprint, look for a treadmill in the 2hp to 3hp in the DC range.

## Are brushless motors more powerful than brushed?

A brushless motor loses the brushes and the commutator. … By contrast, a brushed motor will always run as fast as it can while in use. In addition, brushless motors can be more powerful overall. Because the copper windings are on the outside of the motor configuration, there is room to make them larger.

## How hot can a DC motor get?

The surface temperature of a continuously (and correctly) operating general purpose industrial electric motor will easily be 80 C (176 F) and perhaps as high as 100 C (212 F). You can’t keep your hand on a surface that hot long enough to discern differences, and if you try, you could get a nasty burn.

## What would cause an electric motor to overheat?

Overheating in an electric motor can happen for a variety of reasons. The most common causes of overheating include: … A motor that’s too large can waste expensive energy, and a motor that’s too small will be unable to handle an excessive workload — leading to greater stress and heat.

## Which motor is best for treadmill AC or DC?

As a general rule, choose a treadmill with a big and high-quality motor to ensure powerful performance. There are 2 types of treadmill motors: an AC and DC motor. AC motors are often more powerful than DC ones, but are usually noisier and may require a dedicated power line.

## What is the difference between AC and DC motor in treadmill?

AC or DC? Direct-current-driven (DC) motors power most home treadmills. DC motors start slowly, provide a more consistent response to speed, incline and weight demands, and tend to run quieter than alternating-current (AC) motors. With DC, you’re dealing with fewer internal parts, which may cut down on repairs.

## Does a brushless motor last longer?

Longer-lasting. No friction in a brushless drill means less wear and tear, and less heat. … “And a brushless motor runs up to 50 percent cooler than a brushed motor.”

## Can a DC motor overheat?

Due to Insulation breakdown or due to high circuit resistance overheat may cause. Normally, overheat occurs when machine exceeds pull out torque i.e, when the motor is overloaded. At that time, it takes huge input of current thus having large voltage drop across the resistance in the circuit and hence causes heat loss.

## Can you reverse an electric motor?

Reversing a capacitor start motor. … Once started, a single phase induction motor will happily run in either direction. To reverse it, we need to change the direction of the rotating magnetic field produced by the main and starter windings. And this can be accomplished by reversing the polarity of the starter winding.

## What causes a DC motor to overheat?

Electrical overload caused by excessive voltage supply or overwork by drawing more current will lead to overheating issues. As the motor works harder or under unusual load, heat will be the chief byproduct, leading to failure. 2. Low resistance is the most common reason behind electric motor failure.

## Which is faster 12V or 6v?

The higher the number of volts, the more powerful the car. So a 6V kids electric car is the lowest power, a 12V is higher, and a 24V even higher than that. … Cars with higher voltages will be faster, and better able to cope with rough surfaces. The number of volts also determines what battery your car uses.

## How long can a brushless motor run continuously?

1,000 to 3,000 hoursIf you are looking for a motor with a long life expectancy, consider a brushless motor. Brushed motor life is limited by the brush type and can attain 1,000 to 3,000 hours on average, while brushless motors can attain tens of thousands of hours on average, as there are no brushes to wear.

## How long can a motor run continuously?

You should anticipate, given proper attendance, that the motor can run continuously for the life of its brushes, which should be in the range of six months to a year. Presuming that the motor is too small to have its brushes changed by a trained electrician while running.

## What makes an electric motor go bad?

Stressful mechanical, environmental, and electrical operating conditions can all cause electric motor failure. Electrical failures are winding failures caused by an open contactor, bad connection, blown fuse, excessive heat, electrical overload, or broken power lines.