GB/T 20140-2016: Measurement Method and Evaluation criteria of Dynamic Characteristic and Vibration on Stator End Windings of Cylindrical Synchronous Generators

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Scope

This Standard specifies the measurement method and evaluation criteria of dynamic
characteristic and vibration on stator end windings of cylindrical synchronous
generators.
This Standard applies to 4-pole cylindrical synchronous generators of rated rotational
speed 1 500 r/min and 1 800 r/min and 2-pole cylindrical synchronous generators of
rated rotational speed 3 000 r/min and 3 600 r/min, with a rated power 200 MW and
above.
The dynamic characteristic on stator end windings shall be measured for cylindrical
synchronous generators before delivery and during new-machine handover, abnormal
occurrences during operation (e.g. circuit abrasion or loosening) and overhaul
inspection.
When stator end windings are loosened significantly and end windings has unqualified
modes such as elliptical or 4-lobe mode shape, during the type test of cylindrical
synchronous generators, the vibration should be measured at the end of stator
windings.
Refer to this Standard for cylindrical synchronous generators with a rated power below
200 MW.

Basic Data

Standard ID	GB/T 20140-2016 (GB/T20140-2016)
Description (Translated English)	Measurement Method and Evaluation criteria of Dynamic Characteristic and Vibration on Stator End Windings of Cylindrical Synchronous Generators
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	K20
Classification of International Standard	29.160.01
Word Count Estimation	15,143
Date of Issue	2016-02-24
Date of Implementation	2016-09-01
Older Standard (superseded by this standard)	GB/T 20140-2006
Regulation (derived from)	National Standard Announcement No
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China