Aging Power Delivery Infrastructures: 2nd Edition (e-Book) book cover

Aging Power Delivery Infrastructures

2nd Edition

By H. Lee Willis, Randall R. Schrieber

CRC Press

820 pages | 229 B/W Illus.

Purchasing Options:$ = USD
Paperback: 9781138072985
pub: 2017-03-29
Hardback: 9781439804032
pub: 2013-01-23
eBook (VitalSource) : 9781315216652
pub: 2017-12-19
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Good aging infrastructure management consists of optimizing the choice of equipment and its refurbishment while also making compatible changes in all those operating and ownership policies, the whole combination aimed at optimizing the business results the power system owner desires. Both a reference and tutorial guide, this second edition of Aging Power Delivery Infrastructures provides updated coverage of aging power delivery systems, the problems they cause, and the technical and managerial approaches that power systems owners can take to manage them.

See What’s New in the Second Edition:

  • All chapters have been updated or are completely new
  • Comprehensive discussions of all issues related to equipment aging
  • Business impact analysis and models and engineering business studies of actual utility cases
  • Strategy and policy issues and how to frame and customize them for specific situations

This book looks at the basics of equipment aging and its system and business impacts on utilities. It covers various maintenance, service and retrofit methods available to mitigate age-related deterioration of equipment. It also presents numerous configuration and automation upgrades at the system level that can deal with higher portions of aging equipment in the system and still provide good service at a reasonable cost.

Table of Contents

Aging Power Delivery Infrastructures

Introduction and Overview

Aging Infrastructure Management Must Become A Mainstream Part of Utility Operations

What is the Infrastructure Involved?

Characteristics of an Aging Infrastructure

Power Delivery Systems

The Business Environment Has Changed

Five Factors Contribute to Aging Infrastructure Problems

Condition, Criticality, and Consequences

Concluding Remarks

Power Delivery Systems


T&D System’s Mission

The "Laws of T&D"

Levels of the T&D System

Utility Distribution Equipment

T&D Costs

Types of Delivery System Design

Smart Grid


Customer Demand for Power and Reliability of Service

The Two-Qs: Quantity and Quality of Power

Electric Consumer Need for Quantity of Power

Electric Consumer Need for Quality of Power

Two-Q Analyses: Quantity and Quality of Power Are Both Important Aspects of Consumer Value

Conclusion and Summary

Power System Reliability and Reliability of Service


Outages Cause Interruptions

Reliability Indices

Reliability and Contingency Criteria for Planning

Cost Is Usually the Major Consideration

Two-Q Analysis of Power Systems

Conclusion and Summary

Cost and Economic Evaluation



Time Value of Money

Decision Bases and Cost-Effectiveness Evaluation

Budget-Constrained Planning: Marginal Benefit versus Cost Analysis

Asset Management and Pareto Analysis


Equipment Inspection, Testing, and Diagnostics


Inspection, Testing, and Diagnostic Evaluation

Equipment Testing and Diagnosis Methods

Tests and Diagnosis of Insulating Oil

OnLine and Real-Time Monitoring and Testing

Summary and Final Comments

Aging Equipment and Its Impacts


Equipment Aging

Equipment Failure Rate Increases with Age

Impact of Escalating Failure Rates

Summary of Key Points

Obsolete System Structures


Obsolete Systems Layouts

Impacts on the Sub-transmission – Substation Level

Feeder System Impacts

"Fixes" For Outdated System Structures

Summary of Key Points

Traditional Reliability Engineering Tools and Their Limitations


Contingency-Based Planning Methods

Limitations of N-1 Methodology

Other Planning Related Concerns

Summary and Conclusion

Primary Distribution Planning and Engineering Interactions


Distribution Planning and the Perceived Role of Distribution

Flexibility and Effectiveness in Feeder Level Planning

Smart Distribution Systems


Equipment Condition Assessment


What Does "Condition" Mean?

Analysis, Modeling, and Prediction

Power Transformers

Switchgear and Circuit Breakers

Underground Equipment and Cables

Overhead Lines and Associated Equipment

Service Transformers and Service Circuits

Evaluating and Prioritizing Equipment Condition

Condition Tracking

Summary and Final Comments



Prioritizing Inspection, Maintenance, and Service

Reliability-Centered Maintenance

Basic Reliability-Centered Prioritization

Prioritization of the Type of Maintenance

Practical Aspects for Implementation

Extending Reliability-Centered Prioritization to Other Operations Functions


Conclusion and Recommendations

Planning Methods for Aging T&D Infrastructures


Planning: Finding the Best Alternative

Short- and Long-Range Planning

The T&D Planning Process

The Systems Approach

Summary of Planning in an Aging T&D Infrastructure

Planning Reliability of an Aging System


Reliability Can Be Engineered

Methods for Distribution System Reliability Assessment

Application of Analytical Simulation for Detailed Reliability Assessment

Use of a Hybrid Analytical Solution

Conclusion and Key Points

T&D Equipment Management Philosophies


Four Philosophies of Ownership

Comparing the Four Ownership Philosophies

Organizational culture

Six Different Companies: Six Different Philosophies

Big States Electric – Asset Management

Mid-State Electric Company – Reliability-Centered Maintenance

International Bulk Petroleum Fluids – Buy, Burn, and Bash

Big State University System – Standards Based

Third-World Orphan Rescue Foundation: Uniquely Standards Based

Huey Longwaites International Airport – Buy, Burn, & Bash

Summary and Conclusion

Case Study: Wood Distribution Pole Management


An Inauspicious Beginning

Overview of Approach

The Data Chase

Building the Historical Model of Pole Ownership

Building the Predictive Model

What the Model Says About the Future

Projections of Pole-Related Costs and Performance

Finding the Bad Poles in the Asset Base

Pole Replacement Merit and Economics

Options for Pole Replacement Programs

CL&P’s Plan for Dealing with Aging Wooden Distribution Poles

Guidelines and Recommendations


Five Interrelated Factors

Results-Driven Management (RDM)

Steps to Mitigate Aging Infrastructure Effects

The Aging Infrastructure Management Program Itself

Notes on a Spreadsheet-Based Model for Aging Trends


The Concept: Incrementing an Age Distribution

Multi-Sheet Structure of a More Practical Model

Fitting and Calibrating a Model

Real World Data Situations: Getting a Solution

Comments on Application

Sustainable Point Analysis


Elements of Aging Infrastructure Analysis

Quantitative Examples

Metrics for Measuring Aging Infrastructures

Effect of Different Failure Rate Curve Shapes

Reading Age Distributions

Applying Economic Analysis

Summary of Key Points

About the Series

Power Engineering (Willis)

Learn more…

Subject Categories

BISAC Subject Codes/Headings:
SCIENCE / General
TECHNOLOGY & ENGINEERING / Electronics / General
TECHNOLOGY & ENGINEERING / Power Resources / Electrical