1 Scope
1.1 Scope
This part applies to laboratory models of any type of impulse or reaction hydraulic turbine, storage pump or pump-turbine.
This part applies to models of prototype machines either with unit power greater than 10MW or with nominal diameter greater than 3.3m. Full application of the procedures herein prescribed is not generally justified for machines with smaller power and size. Nevertheless, this part may be used for such machines by agreement between the purchaser and supplier.
In this part, the term "turbine" includes a pump-turbine operating as a turbine and the term "pump" includes a pump-turbine operating as a pump.
This part excludes all matters of purely commercial interest, except those inextricably bound up with the conduct of the tests.
This part is concerned with neither the structural details of the machines nor the mechanical properties of their components, so long as these do not affect model performance or the relationship between model and prototype performances.
1.2 Objective
The main objective of this part is to obtain additional data via model additional performance test for the design or the operation prediction of the prototype.
This part may also be applied to model tests for other purposes, i.e. comparative tests and research and development work.
If model acceptance tests have been performed, field tests can be limited to index tests (see GB/T 20043, Chapter 8).
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of GB/T 15613. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this part. However parties to agreements based on this part are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 15613.1 Model Acceptance Tests of Hydraulic Turbines, Storage Pumps and Pump-turbines - Part 1: General Rules (GB/T 15613.1-2008, IEC 60193:1999, NEQ)
GB/T 15613.2 Model Acceptance Tests of Hydraulic Turbines, Storage Pumps and Pump-turbines - Part 2: Main Hydraulic Performance Test (GB/T 15613.2-2008, IEC 60193:1999, NEQ)
GB/T 2900.45-2006 Electrotechnical Terminology - Hydroelectric Powerplant Machinery (IEC/TR 61364:1999, MOD)
GB/T 20043-2005 Field Acceptance Test to Determine the Hydraulic Performance of Hydraulic Turbine, Storage Pumps and Pump-Turbines (IEC 60041:1991, MOD)
GB/T 17189-2007 Code for Field Measurement of Vibrations and Pulsation in Hydraulic Machines (Turbines, Storage Pumps and Pump-turbines)
ISO 31-3:1992 Quantities and Units - Part 3: Mechanics
3 Terms, Definitions, Symbols and Units
3.1 General
For the purposes of this part, the common terms, definitions, symbols and units given in GB/T 15613.1 apply. Specialized terms are explained where they appear.
Clarification of any term, definition or unit of measure in question shall be agreed to in writing by the contracting parties in advance of the test.
3.1.1
point
a point is established by one or more consecutive sets of readings and/or recordings at unchanged operating condition and settings, sufficient to calculate the performance of the machine at this operating condition and these settings
3.1.2
test
a test comprises a collection of points and results adequate to establish the performance of the machine over a specified range of operating conditions
3.1.3
hydraulic performance
all performance parameters attributable to the machine due to hydrodynamic effects
3.1.4
main hydraulic performance data
a subset of the hydraulic performance parameters, i.e. power, discharge and/or specific hydraulic energy, efficiency, steady-state runaway speed and/or discharge. The influence of cavitation must be considered
3.1.5
additional data
a subset of hydraulic performance data which can be determined for information on the model (see GB/T 15613.1, subclause 4.4). However, the prediction of the corresponding prototype data is less accurate than that achievable for the main hydraulic performance data, due to application of approximate similarity rules
3.1.6
Foreword i
1 Scope
1.1 Scope
1.2 Objective
2 Normative References
3 Terms, Definitions, Symbols and Units
3.1 General
3.2 Units
3.3 List of Terms, Definitions, Symbols and Units
4 Implementation of Test
4.1 Introduction to Test Data Measurement
4.2 Data Acquisition and Processing for Measurement of Fluctuating Quantities
5 Methods of Measurement and Result
5.1 Pressure Fluctuations
5.2 Shaft Torque Fluctuations
5.3 Axial and Radial Thrust
5.4 Hydraulic Loads on Control Components
5.5 Testing in an Extended Operating Range
5.6 Differential Pressure Measurement in View of Prototype Index Test
Annex A (Informative) Natural Frequency of Water in Draft Tube
Annex B (Informative) Bibliography
Annex C (Informative) Technical Differences and Their Reasons between This Part and IEC 60193:
