GB/T 20140-2016 (English Version) PDF

Standard No.: GB/T 20140-2016
Language: Chinese, Available in English version
Release Date: 2016
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 20140-2016
Replace: GB/T 20140-2006

Scope: This standard specifies the method and evaluation criteria for the dynamic characteristics and vibration measurement of the stator winding end of the secluded pole synchronous generator. This standard applies to 4-pole hidden-pole synchronous generators with rated power of 200 MW and above, rated speeds of 1500 r/min and 1800 r/min, and 2-pole synchronous generators with rated speeds of 3000 r/min and 3600 r/min Very hidden pole synchronous generator. The dynamic characteristics of the stator winding ends should be measured for the hidden pole synchronous generator before leaving the factory, when a new machine is handed over, when abnormal conditions occur during operation (for example, coil wear or looseness, etc.), and during overhaul inspection. During the type test of the secluded pole synchronous generator, serious looseness occurs at the end of the stator winding, and there is an unqualified mode of the elliptical or four-lobe mode at the end of the winding, it is advisable to perform vibration measurement on the end of the stator winding. The hidden pole synchronous generators below 200 MW can refer to this standard.

GB/T 20140-2016 Referenced Document

2016 GB/T 20140-2016 Measurement method and evaluation criteria of dynamic characteristic and vibration on stator end windings of cylindrical synchronous generators
2006 GB/T 20140-2006 Dynamic characteristic and vibration measurement method of turbo-generators on stator windings and evaluation criteria