# What is the speed of a three pole motor operating at 50 Hz?

Contents
Shaft rotation speed – n – (rev/min, rpm)
Frequency – f – (Hz) Number of poles – p –
501) 3000 1000
602) 3600 1200
70 4200 1400

## What speed is 50hz?

For 50 Hz motors, the speed is 3,000 rpm with 2 poles, and 1,500 rpm with 4 poles.

## What is synchronous speed of 3-phase 2pole induction motor when it is given 50hz supply?

Solution. The frequency of 3-phase supply teu le frequency of 3-phase supply led to the induction motor is determined from the speed of the alternator and its number of poles. Supply frequency, 1 = NP/120 = 1000 x 6/120 = 50 Hz Synchronous speed. N = 120/P = 120 x 50/8 = 750 r.p.m.

## Should I use 50Hz or 60Hz?

The primary difference between 50 Hz (Hertz) and 60 Hz (Hertz) is simply that 60 Hz is 20% higher in frequency. … Lower the frequency, speed of induction motor and generator will be lower. For example with 50 Hz, generator will be running at 3,000 RPM against 3,600 RPM with 60 Hz.

## Can you convert 50Hz to 60Hz?

50hz to 60hz Converters

These 50Hz to 60Hz frequency converters are designed to supply 3 phase alternating current (AC) critical loads with high stability 50Hz or 60Hz frequency from a 50Hz or 60Hz input power source. … Equally, the system can be used when 60Hz equipment is required to operate from a 50Hz power supply.

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## What is 120 in motor speed formula?

The equation for calculating synchronous speed is: S = 120 f/P speed = constant (120) times frequency of power source (60 Hz) divided by number of poles used in the motor (P).

## 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.

## What RPM does a 2 pole rotor produce 60Hz?

Primarily used in concert with gas and steam turbines that must spin very quickly to maintain their momentum, 2 pole generators run at 3,000 rpm at 50Hz frequencies and 3,600 rpm at 60Hz.

## Can we increase the RPM of motor?

Yes, but with a small amount above the maximum speed under normal rated conditions. Increasing the speed can be achieved by increasing the supply frequency as the speed and frequency are directly proportional; however, there are two constraints. 