Electric Motor Testing Standards

Electrical standards and approved codes of practice.

Electric motor testing standards.

The bearings allow the shaft or rotor assembly to turn freely and smoothly in the frame. Ieee standard test procedure for polyphase induction motors and generators 3 park avenue new york ny 10016 5997 usa ieee power engineering society sponsored by the electric machinery committee 4 november 2004 print. Ss95211 authorized licensed use limited to. Electric motor standards as defined by the iec and the harmonized european standard custom search.

For bearings fitted with proximity probes the unfiltered peak to peak value of vibration including shaft run out at any load between no load. However there are other applicable standards worth knowing about where the mcemax technology can be utilized to assist in verifying motor acceptability to the standard. Additional standards and codes of practice would generally be needed to satisfy a specific application it is the responsibility of the specifier to select and apply these. The gems regulator has identified an issue relating to the test methods and test standards for three phase cage induction motors electric motors listed in the greenhouse and energy minimum standards three phase cage induction motors determination 2012 the current determination refers to test method a method a as aligning with the standards as nzs 1359 102 3 2000 or iec 61972 and test.

Begin to check the bearings of the motor. Current global motor energy efficiency standards published all iec international electrotechnical commission standards can be purchased at www iec ch a preview of each standard on rotating electrical machines is available below including the table of contents foreword scope and normative references both in english and french. There are a few very often mentioned standards like the ieee43 and ieee95. With the motor at normal operating temperature the vibration velocity shall not exceed 2 8 mm s rms or 4 mm s peak in any direction.

The measurements shall be carried out with an instrument conforming to iso 2954 10 1000 hz frequency range. Bearings are located at both ends of the motor which are sometimes called bell housings or end bells. How to test and check single phase electric motors. For the next few weeks we will be reviewing various standards associated with electric motor testing.