Electrical Power Equipment Maintenance and Testing

ISBN-13: 9781574446562 / Angielski / Twarda / 2008 / 1000 str.

Gill Gill; Paul Gill

Opis

The second edition of a bestseller, this definitive text covers all aspects of testing and maintenance of the equipment found in electrical power systems serving industrial, commercial, utility substations, and generating plants. It addresses practical aspects of routing testing and maintenance and presents both the methodologies and engineering basics needed to carry out these tasks. It is an essential reference for engineers and technicians responsible for the operation, maintenance, and testing of power system equipment. Comprehensive coverage includes dielectric theory, dissolved gas analysis, cable fault locating, ground resistance measurements, and power factor, dissipation factor, DC, breaker, and relay testing methods.

Spis treści

Maintenance Strategies, Dielectric Theory, Insulating Materials, Failure Modes, and Maintenance Impact on Arc-Flash Hazards
Introduction
Why Maintain and Test
Overview of Electrical Maintenance and Testing Strategies
Planning an EPM Program 
Overview of Testing and Test Methods
Review of Dielectric Theory and Practice 
Insulating Materials for Electrical Power Equipment
Causes of Insulation Degradation and Failure Modes of Electrical Equipment
Maintenance of Protective Devices and their Impact on Arc-Flash Hazard Analysis

Direct-Current Voltage Testing of Electrical Equipment
Introduction
DC Voltage Testing of Insulation
DC Testing Methods 
Transformers 
Cables and Accessories 
Electrical Switchgear and Circuit Breakers 
Motors and Generators 
Lightning Arresters 
Capacitors 
Evaluation of Test Data Readings 
Precautions when Making DC Tests 

Power Factor and Dissipation Factor Testing Methods
Introduction 
PF and DF Test Methods 
Description of the PF Test Equipment 
Basic Test Connections (Test Modes) for PF Testing 
Safety Cautions with PF Testing 
PF Testing of Electrical Apparatus Insulation 
Evaluation and Grading of PF and DF Test Results

Insulating Oils, Fluids, and Gases
Introduction 
Insulating Oil 
Less Flammable Insulating Fluids
Insulating Liquid Sampling Procedures 
Maintenance and Reconditioning of Insulating Oil and Fluids 
Insulating Gases

Transformers
Introduction
Transformer Categories and Type
Application and Use 
Transformer Fundamentals
Transformer Polarity, Terminal Markings, and Connections
Transformer Characteristics
Preventive Maintenance of Transformers 
Transformer Testing 
Online Condition Monitoring of Transformers
Online Monitoring of Bushings and Lightning Arrestors

Cables and Accessories
Introduction 
Cable Construction and Classification 
Cable Characteristics
Electrical Constants
Cable Ratings
Cable Selection and Application 
Installation of Cables 
Maintenance of Cables 
Cable Failures and Their Analysis 
Field Testing of Medium-Voltage Cables 
Latest Trends in Cable Condition Monitoring and Aging Assessment
Cable Fault Locating Methods

Medium-Voltage Switchgear and Circuit Breakers
General 
Medium-Voltage Switchgear 
Electrical Switchgear Maintenance and Care 
Electrical Switchgear Testing 
Control Power for Switchgear
DC (Battery) Control Power Equipment 
AC Control Power Equipment 
Maintenance and Care of Batteries for
Switchgear Applications 

Low-Voltage Switchgear and Circuit Breakers
Low-Voltage Switchgear
Low-Voltage Circuit Breakers
Overcurrent Protective Devices
Fuses
Disconnect Switches
Selection and Application of Low-Voltage Equipment
Low-Voltage Switchgear Maintenance and Care
Maintenance and Testing of Low-Voltage Protective Devices
Uninterruptible Power Supply Commissioning and Testing
Infrared Inspection of Electrical Equipment 

Testing and Commissioning of Protective Relays and Instrument Transformers
Introduction 
Instrument Transformers 
Protective Relays
Relay Application and Principles
Types of Relay Tests 
Testing and Maintenance of Electromechanical Protective Relays
Testing and Commissioning of Static and Digital Relays
Event Reporting

Motors and Generators
General
NEMA Classifi cation of Motors and Generators
Applications of Motors and Generators
AC Motors
AC Generators 
DC Motors
DC Generators
Motor and Generator Insulation Systems
Motor and Generator Maintenance 
Predictive Maintenance Guide on Motors and Variable Frequency Drives
Testing of Motors and Generators 
Other Insulation Test Methods
Vibration Analysis

Electrical Power System Grounding and Ground Resistance Measurements
Introduction
Selection of Grounding Method
Selection of Grounding System 
Understanding Ground Resistance 
Ground Resistance Values 
Ground Resistance Measurements
Ground Grid Integrity Measurements

Power Quality, Harmonics, and Predictive Maintenance
Background 
PQ Concept and Fundamentals 
Origins of PQ Problems and Harmonics
Characteristics of Typical Linear and Nonlinear Loads
Effects of Harmonic on Power System Equipment and Loads
Predictive Maintenance and PQ Measurements
PQ Solution and Power Treatment Devices

Electrical Safety, Arc-Flash Hazard, Switching Practices, and Precautions
Introduction 
Industry Standards and Regulatory Requirements for Safety
Arc-Flash Hazard and Regulatory Requirements
Electrical Safety Practices and Precautions
Electrical Switching Practices and Precautions
Electrical Fire Emergencies 
Effects of Electrical Shock
First Aid

Appendix A
Appendix B 
Bibliography 
Index 

O autorze

Paul Gill