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03113: Hydro Plant Training for Engineers and Technical Staff - Level 101

Oct 8, 2019

Research

0329: Hydroelectric Turbine-Generator Units Guide for Erection Tolerances and Shaft System Alignment (2008)

IMPORTANT NOTE: This report was updated as part of the 2012-2015 HPLIG TR Program. Please see HPLIG TR #0381 Updated Erection and Alignment Guide for the latest version of these documents: https://my.ceati.com/research/blt413d6f91937d95d3Hydroelectric Turbine-Generator Units Guide for Erection Tolerances and Shaft System Alignment:Part I: DefinitionsPart II: Vertical Shaft Units With Francis Turbines or Reversible PumpPART III: Vertical Shaft Units With Propeller or Kaplan TurbinesPART IV:
Apr 30, 2005

Research

0379B: Operation of Hydro Generators with Bypassed Stator Coils - Phase 2

This report is a comprehensive guide for owners of hydro-generators in cases of stator winding damage. It provides recommendations for temporary winding repairs in order to return generator back into operation. The guide includes methods to assess the consequences in the case of the bypassed damaged stator winding coils. It also provides recommendations on the exclusion of healthy parts of the stator winding in order to achieve symmetry in the machine that would be disrupted by the removal of da
Sep 12, 2014 - Nov 22, 2019

HPE

Research

03107: Hydro Plant Bushings and Seals Best Practices

The report outlines and identifies available bushings and seals within the hydropower market. Following receipt and analysis of surveyed information from various sources, a guide was prepared outlining the industry’s best practices. Summaries of leading-edge industry research and development work and identification of new materials and technologies were also compiled.Operational characteristics, material specifications, wear expectations, lubricating requirements, insta
Jul 30, 2020 - Aug 12, 2022

HPE

Research

0353: Vibration Analysis - Force and Vibration Relationship

During test runs after upgrading of Forsmo U4 in 2005, the hydropower unit underwent two emergency stops due to excessive vibrations in the shaft train. The investigation that followed showed that the unit was inclined, under certain operational conditions, to start resonating at a frequency of approximately 2.3 times the nominal rotational speed, with extremely large vibrational amplitudes. A dynamic analysis of the rotor in the unit also confirmed that the unit had three eigen-frequencies with
May 1, 2008

HPE

Research

0327: CPF: Hydro-Electric Coating Strategies for Corrosion Prevention

Many utilities have a large number of painted assets that are typically of high capital value, in particular penstocks and the primary turbine water passages. The corrosion protection systems/coatings for these assets are largely based on the coating technologies of the 1940s to 1960s. These coatings are now reaching the end of their technical life and due to Occupation Health and Safety (OHS) and environmental concerns these coatings are no longer acceptable.This technology review presents the
Apr 30, 2004

HPE

Research

0320: CPF: Industry Survey of Turbine Lubrication Oils Used at Hydroelectric Power Plant: Performance and Problems

Turbine oils are essential to the operation of hydroelectric power generating equipment. They are used for lubricating and cooling purposes, and for operating the generators' speed governor system. The types of oils historically used in hydro turbines are no longer readily available on the market in the United States and Canada. Currently available turbine oils are blends of a different type of base oils and new additive packages, which may not be fully compatible with in-service oils. The
Apr 30, 2003

HPE

Research

0367: hydroAMP Consolidated Guide: Hydropower Asset Condition Assessments Revision 2.2

EXECUTIVE SUMMARYSuccessful strategic planning for capital investments in existing hydropower facilities requires consideration and the balancing of many factors, including the risks and consequences of equipment failure. The hydropower community has long recognized the importance of accurate assessments of equipment condition in order to make informed and sound capital investment planning and management decisions. Seeking to improve the evaluation and documentation of hydroelectric equipment co
Jul 18, 2014

HPE

Research

0373: Hydro Unit Stator Core and Rotor Pole Replacement / Refurbishment Criteria

Improvements in the design of hydro generators over the past five decades, including generator stator core laminations and insulating materials, have resulted in substantial increases in the efficiency and performance. In addition, utilities are hard pressed to make improvements in unit availability and reduce forced outages due to the aging of generator and rotor field pole windings in the components life cycle process. As a result, utilities operating aging generating units are more willing to
Jun 9, 2011 - Nov 9, 2015

HPE

Research

0319: CPF: Maintenance Measures for Intake Gates and Penstocks

The emergency closure devices on the intake structures of hydroelectric generating stations are critical to their continued successful safe operation. This report examines current maintenance practices of the hydroelectric industry for emergency closure devices such as gates, valves and penstocks. It is based on a survey that was developed and distributed to CEATI participant utilities. Using the results collected, this report seeks to identify trends in maintenance procedures. It also explo
Dec 4, 2004
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