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Induction Motor Testing Guide

The document summarizes key tests performed as part of induction motor testing after assembly by the manufacturer. These include efficiency tests using IEEE 112 method E1, measurement of parameters like full-load, no-load, and locked rotor torque as defined in standards, cold winding resistance tests to measure stator, rotor and exciter windings, and temperature sensor resistance tests to check sensors defined at 100 ohms for 0°C. The purpose is to ensure the motor meets specifications in the purchase order.

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Carlos
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254 views1 page

Induction Motor Testing Guide

The document summarizes key tests performed as part of induction motor testing after assembly by the manufacturer. These include efficiency tests using IEEE 112 method E1, measurement of parameters like full-load, no-load, and locked rotor torque as defined in standards, cold winding resistance tests to measure stator, rotor and exciter windings, and temperature sensor resistance tests to check sensors defined at 100 ohms for 0°C. The purpose is to ensure the motor meets specifications in the purchase order.

Uploaded by

Carlos
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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Induction Motor Testing (Routine Testing or FAT

Test)
The Induction motor testing(Routine Testing or FAT Test) is performed after
completion of assembly by the manufacturer to prove that the motor has the same
specification as required in the purchase order.

Where a load test applicable, the efficiency is determined by IEEE 112 method
E1. When the test facility is not capable of conducting a full load temperature
rise test, the test is carried out at reduced power with results extrapolated to
rated values. The motor test parameters such as full-load, no-load, locked rotor
torque, etc. are used as defined in the IEC60034-1 and IEC60034-2.

Cold Winding Resistance Test


The purpose of this test at induction motor testing is to measure the resistance of
stator, rotor and exciter windings to ensure that the values calculated at 20°C
(ambient) conforms to the technical specifications. These values are used for the
calculation of temperature rise. The resistances are measured by the
Voltammetric method at ambient temperature.

The test is performed by a current generator (greater than 10 Adc) and a


voltmeter. The acceptance criteria shall be based on manufacturer approved
procedure but usually phase to phase deviation should not be more than 2%, and
max deviation from theoretical value should not be more than 5%.

Temperature Sensor Resistance Test


This test is done to make sure the continuity and homogeneity of each
temperature sensor defined at 100 Ohms for 0°C. A multimeter or temperature
direct reading probe is used for measurement. The acceptance criteria depends
on test procedure but normally should not be more than +/- 2° celsius

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