Which motor is used in bus?

Which motor is used in bus?

Permanent Magnet Synchronous Motor (PMSM) PMSM has a sinusoidal back emf whereas BLDC has trapezoidal one. They have a high power rating and can be used in high-performance applications such as sports cars, buses etc.

Which type of motor is used in trains?

DC motors
DC motors are used on trains is because of their high torque and good speed control. Compared to AC motors, DC motors can provide industry applications with a fine balance of strong starting torque and controllable speed for seamless yet precise performance.

Which motor is used in metro train?

THREE PHASE SLIP RING INDUCTION MOTOR has been used in DELHI METRO. Dc series motor is ideal for traction but the maintenance cost of which is very high also needs the conversion and smoothening of AC voltages.IM has less maintenance,high starting torque, cheap etc.

What is motor in electric vehicle?

Electric expertise electric vehicle motor. Forget cylinders, pistons and exhaust fumes: an electric car’s motor is built around a set of parts designed to convert electricity into mechanical energy through the creation of a magnetic field.

How many motors are used in locomotive?

There are two types of AC motor, synchronous and asynchronous. The synchronous motor has its field coils mounted on the drive shaft and the armature coils in the housing, the inverse of normal practice.

Why DC current is used in train?

Originally Answered: why a dc current is connected in the trains? Trains are given 25kv overhead supply, the transformers & rectifiers set in the trains (engine) converts it in dc because dc series motors are preffered for train action(because of good control ofc). The fans/lights in trains works in dc too.

Which DC motor is used in train?

Series-wound DC motors. That means current flows through the armature, then through the fields. They have high starting torque, favorable for starting a train. Nowadays the trend is toward AC motors, typically a 3-phase induction motordriven by a DC->AC inverter control.

Do trains have electric motors?

Although commonly called “diesels,” the locomotives actually are electrically driven. The diesel engine drives an alternator, which produces electricity to run electric motors mounted on the locomotive’s axles.

How do you determine the number of Poles on a stepper motor?

Permanent-magnet stepper motors are the simplest. Manufacturers define their pole count by the number of pole pairs or stator windings. Increasing the number of pole pairs on the rotor itself (or adding more stator phases) increases resolution.

How does the number of stator poles influence design decisions?

This can influence design decisions in a few ways. Basically, the more poles, the more precisely a drive can control stepper motor output. Beyond this simple fact, manufacturers offer varying arrangements and numbers of stator poles and teeth.

What is an acceptable load range for an electric motor?

Reasons to Determine Motor Loading Most electric motors are designed to run at 50% to 100% of rated load. Maximum efficiency is usually near 75% of rated load. Thus, a 10-horsepower (hp) motor has an acceptable load range of 5 to 10 hp; peak efficiency is at 7.5 hp. A motor ’s efficiency tends to decrease dramatically below about 50% load.

What is a pole in physics?

Simply defined, a pole is a north or south magnetic field of force that is generated by a permanent magnet or current passing through a coil of wire.