GB/T 21211-2007 (English Version) Equivalent loading and super-position techniques.Indirect testing to determine temperature rise of roating electrical machines

Standard No.: GB/T 21211-2007
Language: Chinese, Available in English version
Release Date: 2007
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Status: Be replaced 2018-05
Replace By: GB/T 21211-2017
Latest: GB/T 21211-2017

Scope: This standard applies to motors and generators covered by GB 755-2000 that cannot be loaded to specified conditions (rated or other loads) for thermal tests due to various reasons, and does not apply to motors of 1kW and below. The purpose of this standard is to describe various indirect load test methods for determining the temperature rise of rotating electrical machines, including ac induction motors, ac synchronous motors, and dc motors. In some cases, this test method is accompanied by methods for measuring or estimating other parameters such as loss and vibration, but this method does not specifically require that these data be provided. Since the test methods recommended in this standard are equivalent, the test method can only be selected according to the application, test equipment, motor type and accuracy of test results.

GB/T 21211-2007 Referenced Document

GB 755-2000 Rotating electrical machines-Rating and performance
GB/T 755.2-2003 Methods for determining losses and efficiency of rotating electrical machinery from tests(excluding machines for traction vehicles)

2017 GB/T 21211-2017 Equivalent loading and superposition techniques—Indirect testing to determine temperature rise of rotating electrical machines
2007 GB/T 21211-2007 Equivalent loading and super-position techniques.Indirect testing to determine temperature rise of roating electrical machines