1) Descargas Parciais nos Enrolamentos Estatóricos (PDA)
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• A Comparison of On-line versus Off-line Partial Discharge Testing on Generators • Application of Both On-line and Off-line Partial Discharge Testing on Hydro generators • Application of on-line PD testing technology to extend lifetime of stator winding insulation • Compare the Relative Effectiveness of 500pF vs. 80pF PD Couplers • Corona Probe Measurements taken on Grand Coulee Dam • Experience with Diagnostic Testing • How to Identify Stator Insulation Problems Using On-line Partial Discharge Analysis • How to Minimize the Risk of Stator Insulation Failure on Critical Motors • Identification of Stator Insulation Deterioration Using On-line Partial Discharge Testing • Increased Sensitivity of Capacitive Couplers for In-Service PD Measurement in Rotating Machines • On-line Partial Discharge Monitoring on MV Motors • On-line PD Testing on lower Voltage Rotating Machines using High Sensitivity Capacitors • Partial Discharge Database - Its Benefits and Limitations on Assessment of Stator Insulation Deterioration • Partial discharge measurement on rotating machines - Two Case Studies • Quality Evaluation of Generator and Motor Stator Windings • Recent Improvement in Detection Sensitivity of PD Monitoring of Motors • Some Aspects of PD Monitoring on Cable Connected Machines • Timing for Generator Rewinds Bridging the Gap between Statistical Methods and CBM • Use of Continuous On-line Partial Discharge Monitoring for Condition-Based Maintenance
2) Falhas Interlaminares no Núcleo Eletromagnético
• Avaliação da Qualidade do Núcleo Estatórico e Determinação de Imperfeições na Isolação entre Chapa • Current Low Power Core Testing using ELCID • ELCID - A Collection of Case Studies • Experience and Benefit of using ELCID for Turbine-Generators • Generator Core Investigation and the Importance of Good Lamination Contact at the Back of the Core • Handbook of Electric Motors - EL CID Test • Hydrogenerator EL CID results referred to High Flux Ring Test results • Improvements in Testing Stator Core Condition of Medium to Large Motors • Limited Access Inspections of Hydro generators • Problems (and Solutions) Experienced with ELCID Testing a Large Hydro generator Stator • Testing of Inter-laminar Insulation of Stator Cores using EL CID • The impact of stator winding circulating current on EL CID results • Verification of the Effectiveness of ELCID on a Hydro generator Stator Core
3) Sistema de Cunhagem
• Electronic Wedge Tightness Evaluation • Recent Developments in Wedge Tightness Testing • Recent Improvements in Wedge Tightness Evaluation
4) Condições da Isolação dos Enrolamentos Estatóricos
• Assessing Condition of Stator Winding Insulation using Ramped Direct High-Voltage Method • The Use of DC Ramp Testing to Assess the Condition of Stator Winding Insulation
5) Espiras em Curto nos Pólos de Geradores
• Generator Field Winding Shorted Turn Detection Technology • Generator Field Winding Shorted Turns - Moisture Effects • Generator Field Winding Shorted Turns - Observed Conditions and Causes • Inter-turn Short-Circuit Detector for Turbine-Generator Rotor Windings
6) Corrente de Aterramento e Tensão do Eixo
• Detecting and Identifying Vibration Problems • Early Warning of Developing Problems in Rotating Machinery • Generator Monitoring using Unique Electrical Profiles • Monitoring Electrical Profiles in Rotating Machinery Shafts Warns of Developing Problems • Monitoring of Shaft Voltages and Grounding Brush Currents • Shaft Electrical Profile provides Early Warning of Problems • Shaft Riding Brushes to Control Electric Stray Currents • Shaft Voltage and Current Monitoring • Shaft Voltages and Rotating Machinery The Role of the Voltage-Current Monitor (VCM) in Monitoring • Understanding Shaft Voltage and Grounding Currents on Turbogenerators
• How and Why to Measure Magnetism Accurately • Magnetic Field and Stray Currents Effects • Magnetism and Stray Currents in Rotating Machinery • Principles of Magnetism and Stray Currents
• Winding Resistance Booklet
• PJ Surge Testers – Why Buy
• Benefits of Baur VLF Testing and Diagnosis
11) Diagnóstico de Cabos
• New Results in Medium Voltage Cable Assessment using Very Low Frequency
12) Testes de Líquidos Isolantes
• DPA Test Vessels for Insulating Liquids with Reduced Volume
• A New Instrument for Wet Stator Insulation Detector • Business Case Development for On-line Equipment Monitoring • Monitoring Moisture in Hydrogen Cooled Generators • Why Generators Fail Retorna ao topo da página.
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