Relationship Between Motor Poles Number with Speed Display problem ? ... 2-pole motor = 3,600 RPM; 4-pole motor = 1,800 RPM; 6-pole motor = 1,200 RPM; A 2-Pole motor runs twice as fast as a 4-pole motor. The 2-pole motor has 2 windings at 180 degrees apart and the four pole motor has four windings at 90 degrees apart. The ro tor tries to move from pole to pole with each half cycle of the AC current so the motor no-load speed for 60 cycle current is 2x3600/#poles. This is 1800 rpm for a 4-cycle motor and 3600 rpm for a 2-pole motor. I agree with your understanding that the number of poles an electric motor has has a direct relationship with its speed of rotation. In Australia where we operate on 50HZ a 4 pole electric motor rotates at about 1415 rpm while not under load and a 2 pole rotates at 2800 rpm. In your neck of the woods the values are more like a four-pole motor operating under no-load conditions will run at 1,800 RPM (7,200 divided by four poles). Loaded, the motor will slip to between 1,600 and 1,750 RPM. Four pole designs are the most common pole configuration for AC induction motors and are typically found in belted applications such as blowers, fans, air-handling equipment, Motor Poles & RPM Motor Synchronous Speeds (RPM) Frequency ... Poles = number of poles of your motor. So, for example, if you have a 4 pole motor on 60 Hz then RPM E.g the pole-frequency product might be 3600 RPM but the motor will turn about 10% less of 3240 RPM. The voltage if its near the rated 6) and between 1,050 and 1,175 rpm loaded. They are often used for air-handling equipment, direct-drive applications, window fans, furnace blowers, room air conditioners, heat pumps, and other equipment where the relatively slower motor speed makes for quieter operation. I understand a 3 phase squirrel cage motor RPM is 120*(Frequency/Poles) ... To complete one revolution, a 4-pole motor has to pass through 2 pole pairs. VFDs How Do I Calculate RPM For Three Phase Induction Motors? Calculating RPM for a three phase induction motor is relatively simple ... / # of poles in the motor; AC Motor Repair; DC Drive Repair; DC ... VFDs How Do I Calculate RPM For Three Phase Induction Motors? I understand a 3 phase squirrel cage motor RPM is 120*(Frequency/Poles) ... To complete one revolution, a 4-pole motor has to pass through 2 pole pairs. One electric motor with following specifications: 280 kw, 6 pole, 440 v, 50 Hz, 980 rpm. 1. What will be the rpm at 380 volt? 2. Re: How to convert Revolution per Minute(RPM) to Hertz? If you are measuring as Hertz how many cycles of the motor shaft per second is How does the number of poles in an induction motor determine its ... one stator pole to the opposite pole of the same pair. FREQUENCY CONTROLLED AC MOTOR DRIVE ... pole pair number, ... and Speed and Slip are expressed in RPM. Figure 1 -Typical Squirrel Cage Motor Torque T and If you have 60 Hz then a 2 pole motor will synchronise at 3600 rpm. 50Hz = 3000 rpm. So if you have 4 poles in the motor - the "pole FREQUENCY CONTROLLED AC MOTOR DRIVE ... pole pair number, ... and Speed and Slip are expressed in RPM. Figure 1 -Typical Squirrel Cage Motor Torque T and The synchronous speed is the speed of the revolution of the magnetic field in the stator winding of the motor. ... relation shown below. How to determine the pole number of an induction motor? How to determine the pole number of an ... 2 pole motor will run at approximately 2880 rpm. Hi just wanting to find information on electric motors and how to tell how many poles a motor ... i.e. Re: How to convert Revolution per Minute(RPM) to Hertz? If you are measuring as Hertz how many cycles of the motor shaft per second is round rotor salient pole rotor Basic Concepts of A Machine (4) ... m revolution/minute (rpm) 60 60 1 m m m n f n rev/second . Motor characteristics vary considerably from type to ... , or revolutions/minute {rpm}. Relation Between Horsepower, Torque, And Speed. ... motor speed in revolutions per minute (RPM) ns = Determining speed for AC induction motors ... A two pole motor operates at 3,600 RPM (7,200 divided by two) unloaded and approximately 3,450 RPM under load. What is RPM of a 2 pole single phase motor? ... What is the relationship between motor POLE and RPM? Discussion what is the difference between a 2 pole and 4 ... and falls in relation to the ... of 3000 rpm. Propeller rpms in Relation to Motor Shaft rpms. Hello I am wondering what the relation between motor