# Best answer: What is the strongest electric motor?

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A high temperature superconductor (HTS) developed by Northrop Grumman Corporation and tested by the U.S. Navy holds this title. It is the world’s first 36.5 megawatt (49,000 horsepower) HTS ship propulsion motor.

## What electric motor has the best power to weight?

Siemens and Emrax claim best power to weight ratio for electric motors in the 5 to 10 kilowatt per kg range. Siemens researchers have developed a new type of electric motor that, with a weight of just 50 kilograms, delivers a continuous output of about 260 kilowatts – five times more than comparable drive systems.

## What is the highest voltage motor?

Keeping the limits in check

“Some people consider anything above 1000 V as high voltage. The limits are clearly defined, however, in the IEC 60038 standard: low voltage is up to 1000 V, medium voltage is from 1000 V to 35 kV, and high voltage is over 35 kV.

## What makes a powerful electric motor?

Strength of a motor:

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The strength of the motor (torque) is determined by voltage and the length of the wire in an electromagnet in the stator, the longer the wire (which means more coils in the stator) the stronger the magnetic field. This means more power to turn the rotor.

## How high can an electric motor rev?

A typical electric motor can rev up to 20,000rpm, far higher than the usual 4,000-6,000rpm limit for conventional cars. Also, electric motors are power-efficient throughout this rev range, meaning they don’t only deliver their optimum performance within a small, narrow rev band.

## What is good power to weight?

This means you can generate 4.05 watts for every kilogram of body weight. A power to weight ratio of 4 to 4.5 is equivalent to a competitive Category 2 racer. A power to weight ratio of 5-6 would put you in the range of a Category 1 elite professional (according to Andy Coggan’s power profiling chart).

## How much weight can a 1 hp motor lift?

This means with 1 hp, you can lift about 550 lbs (250 kg) at a rate of 1 ft/sec, 1100 lbs at a rate of 0.5 ft/sec, 225 lb at a rate of 2 ft/sec, 1 lb at a rate of 550 ft/sec, and so on.

## Is a higher voltage motor better?

A higher voltage system is more efficient than a lower voltage since it experiences less energy loss from resistance given the same amount of power draw. … You get the same exact voltage—but with 80 amps of current. That’s 80% more energy!

## What voltage is considered High Voltage?

Safeopedia Explains High Voltage

In the context of building wiring and the general use of an electrical apparatus, the International Electrotechnical Commission defines high voltage as more than 1,000 volts (V) of alternating current (AC) and above 1,500 V of direct current (DC).

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## What is the difference between HV MV and LV?

High (HV), Extra- High (EHV) & Ultra-High Voltages (UHV) – 115,000 to 1,100,000 VAC. Medium Voltage (MV) – 2,400 to 69,000 VAC. Low Voltage (LV) – 240 to 600 VAC.

## What size electric motor do I need?

General rule of thumb: you need at least 2 lbs. of thrust for every 100 lbs. of fully-loaded boat weight (people and gear included). If things like wind or current are major factors where you fish, you’ll want a little extra thrust.

## What makes an electric motor weak?

The most common cause of motor failure, and arguably the most difficult to overcome, is low resistance. Low resistance is caused by the degradation of the insulation of the windings due to conditions such as overheating, corrosion, or physical damage.

## What makes an electric motor spin faster?

ANSWER: In order to make the motor spin faster or slower you must increase or decrease the strength of the magnetic field. This is done by either changing the amount of current running through the motor or varying the distance of the permanent magnets from the motor.

## Do electric motors have horsepower?

Electric Motors

An electric motor’s output is measured in kilowatts. Companies that build electric cars continue to talk about horsepower because consumers are still more familiar with that type of unit. The equation is as simple as hp = kW x 1.369, so a 100-kW motor produces 136 horsepower.

## How do I lower the RPM on my electric motor?

A couple of things you can do:

1. Use gears to change ratio of speed, which is what you’re going to do. …
2. Use a stepper motor, which are commonly used for high-torque, low RPM applications.
3. Find some sort of PWM control circuit to slow it down, although you probably won’t be able to get it down to 5-10RPM.
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## How do you speed up an electric motor?

Increasing the armature voltage increases the speed. Increasing the armature current (by increasing the mechanical load) decreases the speed. Reducing the field current will increase the speed.