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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

3207: Reliability Improvement Based on the Replacement of Defective Porcelain Transmission Line Insulators

Transmission lines insulated using porcelain insulators are designed, engineered, constructed, andoperated to meet specified reliability standards. However, the specified reliability standardsestablished by different utilities do not necessarily take into account insulator units which aredefective due to aging or manufacturing defects. Given the fact that there are built-in safety factorsin a string of insulators, the existence of some defective insulator units in insulator strings on a giventra

OTE

Research

3144: Guidelines for Planning and Operating a Power System with a Low Short Circuit Ratio

This report provides guidelines for planning and operating power systems with low short-circuit ratios. Its findings summarize best practices for the power industry as power systems transition from synchronous generator-dominated to high penetration of renewable energy-based power generation.This report offers a comprehensive overview of the guideline document, enriched by unique insights from utility and equipment vendor experts. It also includes a list of the most relevant documents obtained t

Sep 28, 2021 - May 28, 2024

PSPO

Research

3064: Gasket Seals - Best Practices for Leak Prevention

This report documents the results of surveys of utilities and transformer manufacturers (OEMs) on their practices for power transformer leak prevention. The results include overall approaches to leak prevention, as well as details on specific applications and products commonly used by utilities and OEMs. The report documents all the information collected during this study, including the literature search, surveys and discussions with utilities and OEMs. Finally, based on the analysis of al

Nov 19, 2010 - Mar 19, 2012

SE

Research

0510: Griffiss Biomass Gasification Feasibility Study

Internal report only. Not for sale.

E&IS

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

30144: Developing Data Driven Decision-Making with Machine Learning

SE

Research

3239: CPF: Best Practices for Transmission Line Insulator Condition Assessment

This project explores the current industry practice for transmission line insulator condition assessment in the field. Currently, there are a number of methods available to assess the condition of insulators. Each of these methods has strengths and weaknesses in its ability to identify defective insulator units or strings. This study identifies the pros and cons of each inspection method for the various types of insulators in use on transmission lines.Both literature review and the utility surve

Feb 1, 2012 - Dec 1, 2013

OTE

Research

0431: CPF: Hydropower Training Project

This is the first phase of a multi-part project undertaken within HOPIG to produce training modules on a variety of topics of relevance and importance to the HOPIG members.In this first phase, the project deliverables include a set of two PowerPoint-based training modules that can be used by HOPIG members to train employees and others. They are designed to: (1) be easily adaptable to enable training people with different levels of expertise; (2) be customized for use in different organizations;

May 1, 2018 - Dec 15, 2018

Research

3414: Grounding and Bonding in Underground Cable Maintenance Work

Staff repairing High Voltage (HV) cables are subject to step and touch potentials arising from load and fault currents on parallel circuits. Also faults at terminating stations can be transferred along cables under repair where no parallel circuit is present. This report reviews the performance of existing grounding and bonding procedures. It recommends improved work practices and provides engineering guidelines to designers who specify cable configurations. The scope includes variations a

Jul 1, 2011 - Sep 1, 2012

TUC

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