What is EFF3?

EFF3 is the least efficiency or Below standard efficiency class in the European standard. For example, A 20HP 2pole motor efficiency is less than 89.4% means it is called eff3 class motor. The loss in the EFF3 motor will be very high. It will be 40% higher than EFF1 and 20% higher than EFF2 motors.

What is IE1 IE2 and IE3 motors?

The IE Efficiency classes defined as: IE1-Standard Efficiency (Comparable to EFF2) IE2-High Efficiency (Comparable to EFF1) IE3 – Premium Efficiency.

What is an IE4 motor?

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. The speed range of the IE4 motors is from 750rpm to 3600rpm. The rpm frequency for IE4 motors is 50Hz or 60Hz.

What is IE 5 motor?

These motors now meet the new IE5 ultra-premium energy efficiency class defined by the International Electrotechnical Commission (IEC). The IE5 ultra-premium SynRM motors offer up to 50 percent lower energy losses and significantly lower energy consumption than the commonly used IE2 induction motors.

What is the difference between IE1 and IE2?

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

What is IE1 and IE2 in 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 Tefc enclosure?

A Totally Enclosed, Fan-Cooled (TEFC) electric motor is a type of industrial electric motor with an enclosure that does not permit outside air to freely circulate through the interior of the motor. This fan forces air over the motor frame fins, and cools the motor. The enclosure is “Totally Enclosed”.

Who invented SynRM motor?

The synchronous reluctance (SynRM) was initially devel- oped in the 1920s by J.K. Kosko. It too was unable to achieve its performance potential until the advent of high-performance power-and-control electronics used in variable speed drives (VSDs).

Which is the least efficient motor EFF1 or eff3?

EFF3 is the least efficiency or Below standard efficiency class in the European standard. For example, A 20HP 2pole motor efficiency is less than 89.4% means it is called eff3 class motor. The loss in the EFF3 motor will be very high. It will be 40% higher than EFF1 and 20% higher than EFF2 motors.

What’s the stray loss on an EFF motor?

EFF1, EFF2, EFF3 are the European Efficiency Classification standard and IE1, IE2, IE3, IE4, IE5 are the International Electrotechnical Commission (IEC) standards. On EFF class motor’s, the stray loss will be considered as 0.5% of the input power. But in IEC standards, the stray losses will be determined.

What is the IE3 motor efficiency class?

What is the IE3 motor Efficiency class? IE3 is nothing but an international efficiency class or premium efficiency. It will be 2% higher than the IE2 motors. But most of the power ratings IE2 and IE3 –classified motor copper losses are practically identical to each other. The motor range is available from 1 HP to 500 HP at 2, 4, 6, 8 Poles.

What are the different types of motor efficiency?

Efficiency is nothing but a number which is used to indicate the motor maximum output power with respect to the input power. Here EFF1, EFF2, EFF3, IE1, IE2, IE3, IE4, IE5 are the different type of efficiency classes are available in the market.