What is difference between ie3 and ie4 motors?

The international standards for IE3 motors include IEC 60034-1-30. The IE4 motors lie in the IE4 class of the international efficiency standard. The output of the IE4 motors is 2.2kW to 230kW. The poles for the IE4 motors are 2, 4, 6, 8.

What Is IE3 and IE4 motors?

The IE2 motors lie in the High-Efficiency range. The IE3 motors lie in the Premium Efficiency range and the IE4 motors lie in the Super Premium Efficiency range. The efficiency range of each motor shows that the efficiency of the next series is better than the previous series.

What is IE4 motor efficiency?

IE4 represents the highest energy efficiency whilst IE1 represents the least energy efficiency. In other words, the higher the class number, the higher the motor efficiency. IE5 is to be incorporated in the next edition of IEC 60034-30-1, with a goal to obtain an energy loss reduction of 20% relative to IE4.

What is mean by IE3 motor?

IE3 motors : Premium efficiency motors. IE stands for International efficiency. Above efficiency class motors are in accordance with the standards IEC 60034-30:2008 and IS 12615:2011. These standards defines efficiencies for. Low rating motors from 0.75 kW to 375 kW.

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What is IE1 IE2 IE3 IE4 in motors?

Efficiency classes

IE1 (Standard Efficiency) IE2 (High Efficiency) IE3 (Premium Efficiency) IE4 (Super Premium Efficiency)

What are IE4 motors?

IE4 Electric Motors. Hoyer IE4 motors are defined by premium energy efficiency. It offers great opportunities for energy savings across markets and applications.

What is difference between IE2 and IE3?

IE3=IP55, which improves the ability of the motor to dust and waterproof. Efficiency:IE3 average value is 91.5%, IE2 average value is 87%. … While high efficiency motors have higher efficiency and highly improved the power factor, and make all system saving energy.

What is efficiency class IE3?

Electric motors that are identified with the new IE code for energy efficiency classes must also be measured with the new measurement procedure as per IEC 60034-2-1:2007.

Overview of energy efficiency classes for electrical drives.

Code IEC 60034-30 Efficiency class
IE3 Premium Efficiency
IE4 Super Premium Efficiency

How do you calculate motor efficiency?

Typical Motor Efficiency Values

Efficiency is simply output (useful) power divided by input power, with the difference being losses due to imperfections in design and other inevitabilities.

Is 12615 a standard motor?

This standard specifies the performance requirements and efficiency of three phase squirrel cage energy efficient induction motors. This standard was first published in 1989 and revised in 2004 to include two types of energy efficiency values.

What is IE2 and IE3 motor?

IE is “International Efficiency” with class 1, 2 & 3 i.e. IE1 & IE2 & IE3. … Over 70% of all electrical energy consumed in industries is used by the motors, hence improving the efficiency of electric motors can save energy as well as operating cost, which is more than its purchase cost.

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What is IE2 chemistry?

The minimum energy required to remove an electron from most loosely bound electron from isolated gaseous atom to convert it into a gaseous uni positive ion called IE1. … The energy required to remove an electron from unipositive gaseous ion is called IE2.

What is IEC in motor?

In short: the International Electrotechnical Commission (IEC) standards are the uniform standards indicating the efficiency classes for electric motors. In 1999, the European Commission established different efficiency classes for electric motors.

Why is IE2 greater than IE1?

The size of the positive charge increases the higher the number of ionisation is taking place. This means that in the second ionisation energy the outermost electrons will experience more force so the energy required to lose the electron will be higher.

What is pole in motor?

The pole count of a motor is the number of permanent magnetic poles, north and south, on the rotor. There is always the same number of north and south poles on the rotor. For example, in a 12 pole motor, there are 6 north poles and 6 south poles. This motor would also be considered a 6 pole-pair motor.