GB/T 6075.2-2012
Mechanical vibration.Evaluation of machine vibration by measurements on non-rotating parts.Part 2:Land-based steam turbines and generators in excess of 50 MW with normal operating speeds of 1500r/min,1800r/min,3000r/min and 3600r/min (English Version)

Standard No.

GB/T 6075.2-2012

Language

Chinese, Available in English version

Release Date

2012

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 6075.2-2012

Replace

GB/T 6075.2-2007

Scope

This part of GB/T 6075 stipulates the evaluation of the vibration intensity of the machine on site, and is applicable to the broadband vibration measured in the radial direction of the shaft (that is, the transverse direction) of the shaft and the axial direction of the thrust bearing for all main bearing housings or housings. They include: — vibrations during normal steady-state operating conditions; — vibrations during other (unsteady-state) conditions during transient changes (including speed up or down, initial loading and load changes); — Vibration changes that occur during normal steady-state operation. This part applies to land-mounted steam turbines and generators with a rated speed of 1500r/min, 1800r/min, 3000r/min or 3600r/min and an output power greater than 50MW, and also to steam turbines and (or) generators directly connected to gas turbines (e.g. combined cycle applications). In these cases, the guidelines in this section apply only to steam turbines and generators (including synchronized clutches). ISO 7919-4 and ISO 10816-4 apply to the evaluation of gas turbine vibration. These evaluation criteria of this part are not applicable to the double frequency electromagnetically excited vibration on the stator core and casing of the generator. The values specified in this section are not intended to serve as the sole basis for evaluating vibration severity. For large steam turbines and generators, the vibration of the rotating shaft is usually used to evaluate. See GB/T 11348.1 and GB/T 11348.2 for the requirements of these vibration measurements.

GB/T 6075.2-2012 Referenced Document

• GB/T 6075.1-2012 Mechanical vibration.Evaluation of machine vibration by measurements on non-rotating parts.Part 1:General guidelines
• ISO 7919-2 Mechanical vibration - Evaluation of machine vibration by measurements on rotating shafts - Part 2: Land-based steam turbines and generators in excess of 50 MW with normal operating speeds of 1500 r/min, 1800 r/min, 3000 r/min and 3600 r/min

GB/T 6075.2-2012 history

• 2012 GB/T 6075.2-2012 Mechanical vibration.Evaluation of machine vibration by measurements on non-rotating parts.Part 2:Land-based steam turbines and generators in excess of 50 MW with normal operating speeds of 1500r/min,1800r/min,3000r/min and 3600r/min
• 2007 GB/T 6075.2-2007 Mechanical vibration Evaluation of machine vibration by measurements on non-rotating parts Part 2: Land-based steam turbines and generators in excess of 5O MWwith normal operating speedsof 1500r/min,1800r/min,300O r/min and 3600r/min
• 2002 GB/T 6075.2-2002 Mechanical vibration--Evaluation of machine vibration by measurements on non-rotating parts Part 2: Large land-based steam turbine generator sets in excess of 50MW

GB/T 6075.2-2012 -All Parts