SIST EN 60994:2002

Guide for field measurement of vibrations and pulsations in hydraulic machines (turbines, storage pumps and pump-turbines)

This guide applies to any type of reaction or impulse turbine, as well as to any type of pump-turbine and storage pump, coupled to an electric generator or motor. It covers the field of vibration and pulsation tests referred to as standard tests.

Leitfaden für die Messung von Schwingungen und Druckpulsationen an hydraulischen Maschinen (Turbinen - Speicherpumpen und Pumpturbinen) in Kraftwerken

Guide pour la mesure in situ des vibrations et fluctuations sur machines hydrauliques (turbines, pompes d'accumulation et pompes-turbines)

S'applique à tout type de turbine à réaction ou à action, ainsi qu'à tout type de pompe-turbine et de pompe d'accumulation, couplée à un alternateur ou à un moteur. Couvre le domaine des essais de vibrations et de fluctuations qualifiés d'essais standards.

Vodilo za terenske preskuse vibracij in pulzacij za vodne naprave (turbine, akumulacijske črpalke in črpalne turbine) (IEC 60994:1991)

General Information

• Status: Published
• Publication Date: 30-Jun-2002
• ICS: 17.160 - Vibrations, shock and vibration measurements
• ICS: 27.140 - Hydraulic energy engineering
• Technical Committee: IEHT - Electrotechnics - Hydraulic turbins
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jul-2002
• Due Date: 01-Jul-2002
• Completion Date: 01-Jul-2002
• Ref Project: EN 60994:1992 - Guide for field measurement of vibrations and pulsations in hydraulic machines (turbines, storage pumps and pump-turbines)

Relations

• Replaces: SIST IEC 60994:1999 - Guide for field measurement of vibrations and pulsations in hydraulic machines (turbines, storage pumps and pump-turbines)
• Effective Date: 01-Jul-2002

Overview

EN 60994:1992 (CLC) is a field guide for the measurement of vibrations and pulsations in hydraulic machines - specifically reaction and impulse turbines, pump-turbines and storage pumps when coupled to an electric generator or motor. The standard covers in-situ or field measurement activities that fall under what it defines as standard tests for vibration and pressure fluctuation (pulsation) assessment in hydropower and hydraulic energy installations.

Key Topics

The guide focuses on practical aspects of field testing and typically addresses:

• Scope and applicability for reaction turbines, impulse turbines, pump-turbines and storage pumps.
• Measurement objectives for vibration and pulsation tests (acceptance, commissioning, troubleshooting, condition assessment).
• Instrumentation and sensors selection for vibration and pressure/pulsation measurement (accelerometers, pressure transducers, pickup locations).
• Test conditions and setup including operating points, coupling to generator/motor, and environmental considerations.
• Data acquisition and signal handling such as sampling, filtering and time/frequency analysis methods used during field tests.
• Reporting and documentation requirements for consistent, repeatable test results and interpretation.
• Health and safety and access considerations for on-site measurement near rotating machinery and high-pressure systems.

(These topics reflect the guide’s general emphasis on standardized, repeatable field measurement practice for hydraulic machines.)

Applications

EN 60994 is used wherever reliable field measurement of vibrations and pulsations in hydraulic machinery is required:

• Hydropower plant commissioning - to verify machine performance after installation.
• Diagnostics and troubleshooting - to identify sources of adverse vibration or pressure pulsations.
• Routine condition monitoring - to support predictive maintenance and reduce unplanned outages.
• Acceptance testing - by OEMs, contractors and owners to confirm contractual vibration/pulsation limits.
• Research and development - for validating hydraulic machine designs under real operating conditions.

Typical users include hydropower engineers, vibration analysts, commissioning teams, maintenance engineers, test laboratories and equipment manufacturers.

Related Standards

• EN 60994:1992 is aligned with IEC-format documents (see references to IEC 60994:1999 in national editions).
• Relevant topical standards include those on vibration measurement techniques, instrumentation calibration, and hydraulic machinery testing (consult national or IEC/CENELEC catalogues for specific cross-references).

Keywords: field measurement, vibrations, pulsations, hydraulic machines, turbines, pump-turbines, storage pumps, vibration measurement, pulsation tests, in situ measurements, hydropower testing.

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2002
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SIST IEC 60994:1999
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Guide for field measurement of vibrations and pulsations in hydraulic machines (turbines,
storage pumps and pump-turbines)
Leitfaden für die Messung von Schwingungen und Druckpulsationen an hydraulischen
Maschinen (Turbinen - Speicherpumpen und Pumpturbinen) in Kraftwerken
Guide pour la mesure in situ des vibrations et fluctuations sur machines hydrauliques
(turbines, pompes d'accumulation et pompes-turbines)
Ta slovenski standard je istoveten z: EN 60994:1992
ICS:
17.160 Vibracije, meritve udarcev in Vibrations, shock and
vibracij vibration measurements
27.140 Vodna energija Hydraulic energy engineering
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

SIST EN 609
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