ABB MS116 Manual page 35

MA N UA L MOTOR START ER G UI D E
3.2.3.4 ABB and efficiency standards
ABB determines efficiency values according to IEC 60034-2-1 using the low uncertainty method (i.e. summation of
losses), with additional load losses determined by the residual loss method.
It is good to mention and emphasize that the IEC 60034-2-1 test method, which is known as an indirect method, is
technically equivalent to the test methods in the standards CSA 390-10 and IEEE 112 Method B leads to the equivalent
losses and thus efficiency values.
As the world market leader, ABB offers the largest range of LV motors available. It has long advocated the need for
efficiency in motors, and high efficiency products have formed the core of its portfolio for many years. The core of
ABB's process performance range is based on a full range of IE2 and IE3 motors - with many available from stock. We
also supply IE4 motors for additional energy savings.
3.2.3.5 Motors for NEMA Premium
The NEMA Premium® Motors program for the North American market must comply with the EISA 2007 energy effi-
ciency standards. Since December 2010, the engines must be NEMA Premium Efficient. These requirements are
similar to the IE3 requirements. The technical requirements for motors for the North American market are described
in NEMA MG-1.
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