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Third Quarter 1999, Issue 94

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  • Information Technology: What Role will IT Play After Deregulation?

  • Cogeneration Energy Optimization

  • Fuse Saving and it's Effect on Power Quality

  • PTI Conducts International Strategic Planning Meeting


First Quarter 1999, Issue 93

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  • Making Fact-Based Decisions About Distribution Reliability Spending

  • PSSADEPT: The Power of PSS/U But With A Familiar Windows Interface

  • Distributed Generation and the Deregulated Energy Market


Fourth Quarter 1998, Issue 92

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  • PTI's Merger with Stone & Webster Management Consultants, Inc.

  • First PEDS Operational at Niagara Mohawk Photovoltaic Site

  • Assessing the Reliability of Urban Subtransmission Networks

  • PSS/VIPER Analysis Software for Smaller, Complex Power Systems

  • Engineers from Egyptian Electricity Authority Attend Customized Traininq Sessions


Third Quarter 1998, Issue 91

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  • EPRI's Substation Design Workstation

  • Managing Information on Transmission System and Equipment Reliability

  • Deriving Accurate Equipment Models Through The Use of the Dynamic System Monitor


First Quarter 1998, Issue 90

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  • Dynamic Transfer Capability Studies

  • Next Generation PSS/U ~ PSS/Adept

  • PSS/Engines


Second Quarter 1997, Issue 89

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  • A High-Speed, Selective Industrial Load Shedding System

  • Direct Global Power -Focusing on Photovoltaic Initiatives

  • Engineering Applications of GIS


First Quarter 1987, Issue 88

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  • Increasing Overhead Line Ratings

  • Uprate Underground Cables by Analyzing Circuit Load Patterns

  • MUST -Maximizing Utility System Transfer


Fourth Quarter 1996, Issue 87

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  • Engineering Issues in a Competitive Marketplace

  • A New Ball Game

  • Transmission Pricing Using PSS/E

  • The Importance of Performance Monitoring in the Competitive Market

  • Private Power in the Philippines


Third Quarter 1996, Issue 86

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  • Real and Reactive Power Marginal Costs

  • Distribution Feeder Support with Photovoltaics

  • What is an Owner's Engineer?

  • Advanced PSS/E Training Conducted for Baltic tates Engineers


April 1996, Issue 85

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  • Tight Frequency Control It Comes Free on Large Interconnections

  • Utility R.&D Project Reveals Effects of Pulling Rope Wear on Pipe-Type Cable Installation

  • Using LARA to Evaluate Service Reliability Improvement Options


January 1996, Issue 84

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  • PowerDB Broker, Data Exchange Program

  • What Can a PTI Consultant Do For Me?


October 1995, Issue 83

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  • Excitation Limiter Performance is Critical to Voltage Security

  • Benefits and Pitfalls When Optimizing Dispatch

  • A New Approach to HVDC Grounding System Design


July 1995, Issue 82

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  • Competition -Keep It Simple

  • Why We Still Need Least-Cost Planning

  • A Closer Look at Long-Term Transmission Planning In A Competitive Environment

  • Network Services -At What Price?

  • Developing Non-Utility Generation in Competitive Markets


April 1995, Issue 81

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  • An Open Systems Approach to Network Analysis and Data Management

  • Simultaneous Transfer Capability Determination with Security Constrained Optimization

  • Rigid Rotor Balancing of Large Electric Motors

  • 300th PSS/E Installed


January 1995, Issue 80

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  • HVDC Transmission with Long Cable Lines: New Features to Consider

  • The Importance of Transformer Design Reviews Voltage Sags and Voltage Sag Studies


October 1994, Issue 79

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  • Synchronized System-Wide Measurements Using Global Positioning Satellites

  • A New Boiler Efficiency Calculation Method for Coal Plants

  • Handling Non-Integer Harmonics and IEEE 519


July 1994, Issue 78

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  • 25 Years in Perspective

  • PTI's Growth as a Schenectady Company

  • Where is PTI Going?

  • The Changing International Arena

  • System Studies and Technology Transfer

  • Changing Roles in Generation and Transmission Spawn New Requirements for Data Acquisition and Controls

  • New Directions for Power System Analysis Tools or How to Save/Make a Buck?

  • Lifelong Learning -Key to Technical Vitality


April 1994, Issue 77

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  • Thermal and Electrical Energy Cogeneration Optimization

  • Utilization of PSS/E in Hydro Governor Design

  • Local Area Reliability Assessment


January 1994, Issue 76

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  • 1993 in Perspective

  • Change!!

  • Dynamic System Monitor Enhancements Simplify Machine Measurements


October 1993, Issue 75

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  • Real-Time Thermal Rating of Transmission Circuits

  • Underground Transmission Cables: Cost Effective Ampacity Improvements

  • General-Purpose Transmission Line Fault Location System Developed and Implemented on Moses Adirondack 230 kV Lines

  • Network Analysis of Power Line Carrier Signal Attenuation


July 1993, Issue 74

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  • Modem Analytical Tools are Changing the Way Transmission Planning is Done

  • Power System Stabilizers Testing and Tuning

  • Electrical Interface Problems Faced by IPPs and Industrial Power Systems

  • International Clients Complete Customized Training Programs


April 1993, Issue 73

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  • Upgrading Transmission Capacity - AC to DC

  • An Application of Optimal Power Flow to Wheeling

  • Generating Unit Performance Testing - A Critical Need


January 1993, Issue 72

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  • Transmission Access -Not "If' But How Much, How Soon?

  • Five Critical Issues in Privatization

  • Using Phasor Measurements to Evaluate Power System Performance


October 1992, Issue 71

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  • Intersystem Oscillations Recorded During Field Tests

  • Incremental Energy Accounting


July 1992, Issue 70

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  • Combined Cycle Economic Dispatch

  • An Expert System to Save Cables from Fault Locating

  • Computer-Based Power System Operator Training

  • Integrated Planning and Power Marketing Services Operation Formed

  • Power System Protection, Computer Relaying and Applications


April 1992, Issue 69

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  • Should Distribution Circuit MOV Arrester Ratings be Higher?

  • K-Factor, Transformers and Harmonic Loads

  • Network Reduction Utilizing Study Levels


January 1992, Issue 68

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  • Optimizing the Output from Multiple-Unit Hydro Plants

  • Load Models from DSM Recordings


October 1991, Issue 67

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  • Microprocessor-Based Load Shedding has Applications in Industry

  • Technology Advancements Improve Accuracy and Performance of TNA's and DC Simulators

  • New Initiatives in Engineering Education


July 1991, Issue 66

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  • Strategic Business Operation Formed Within PTI

  • Motor Starters Affect Stability

  • Minimizing Operating Costs of Power from Cogeneration Plants

  • Strategic/Technical Links Critical to Rate, Regulatory, and Planning Decisions


April 1991, Issue 65

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  • New Overhead Line Designs to Meet Electrical Environmental Restrictions

  • Large Synchronous Motor Starting Considerations

  • Fourier Analysis to Determine Cable Temperatures


January 1991, Issue 64

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  • Adaptive Short-Term Load Forecasting

  • Hydro Plant Model Sets Record

  • Dynamic Performance Monitoring Systems: State of the Industry

  • The Power Technology Interchange Group


October 1990, Issue 63

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  • Generator Tests Permit Model Derivation

  • Optimal Power Flow -A New Tool for Analyzing Voltage Collapse

  • Ferroresonance Can Damage Transformers During Air Break Switch Operations


July 1990, Issue 62

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  • Geomagnetic Effects on Power Systems Cause and Prevention

  • Corrective Action: An Optimal Power Flow Application

  • The Plant Monitoring Workstation, PMW


April 1990, Issue 61

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  • Better Lightning Flash Data May Improve System Performance

  • Voltage Stability Analysis Requires Accurate Q-V Curves

  • Distribution System Lightning Measurements

  • Power System Harmonics Video Program


January 1990, Issue 60

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  • Power System Harmonics Video Program

  • Reactive Power Planning Using an Optimal Power Flow

  • Estimating Geomagnetically-Induced Currents in Transmission Systems


October 1989, Issue 59

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  • Technology for Organizational Streamlining

  • The Need for a Busy Signal

  • Education: Antidote to Engineering Obsolescence

  • Circuit-to-Circuit Fault Calculation with PSS/E


July 1989, Issue 58

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  • Harmonics, Only a Large Power System Problem?

  • Applications of a New High-Speed Nonlinear Optimal Power Flow

  • Power System Harmonics Video-Training Program

  • PTI Exports Simulator Components to Japan

  • CT and PT Metering Accuracy -Effect of Lead Length


April 1989. Issue 57

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  • Efficient Computation of Fast and Slow Transients in Power System Dynamic Simulations

  • Transmission Line Electric and Magnetict Fields - Problems and Solutions

  • Applying a Power System Stabilizer to a Hydro Generator

  • Optimal Power Flow Breakthrough


January 1989, Issue 56

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  • Independent Power Production -How Much and What Mix?

  • Wheeling -Today's Biggest Issue

  • Reliability Assessment of Off-Site Supply to Nuclear Power Plants

  • Black-Starting Your Nukes


October 1988, Issue 55

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  • Maximizing Use of Long EHV Transmission Lines for Bulk Power Transfer

  • Dynamic System Monitor Simplifies Power System Measurements

  • Control of Conductor Galloping Due to Ice

  • Optimal Power Plant Maintenance Scheduling with PP/MS

  • New PTI Experimental Facilities


July 1988, Issue 54

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  • Determination of Thermally Limiting Equipment on Major Transfer Interfaces

  • Temporary Operation of Induction Motors and Synchronous Machines with Cut-Out Coils

  • Opening of Pittsburgh Office is Continuation of PTI Objectives

  • Analytical Methods Help Prioritize Research Program

  • PTI Announces New Software Product: PP/MS -Power Plant Maintenance Scheduling Program

  • New York State Export Award


April 1988, Issue 53

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  • Application of Static Var Compensator

  • Expand Your Study Capability with IPLAN

  • Who's Watching Frequency These Days?

  • Performance Uncertainty -Some Good News


January 1988, Issue 52

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  • Cost/Benefit Analysis of Distribution Automation

  • The State of the Art in Power Plant Maintenance Scheduling

  • 1988 Storm Disaster Management/Weather Technology Assessment Workshop

  • Uprating Transmission Lines


October 1987, Issue 51

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  • Perspective: Power Generation

  • New PAS Release Incorporates Interactive Performance CalCulations

  • Time Simulation of Furnace Draft Excursions

  • Consideration of Steam Turbine Valve Loops on Unit Performance

  • Flow Nozzle Quality Assessment


July 1987, Issue 50

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  • PTI SS/l Power System Stabilizer Data Logger

  • Dynamic Stability

  • Testing of Power System Components at the Saratoga R&D Center

  • Application of Transient Analysis Tools


April 1987, Issue 49

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  • Perspective: Least Cost Planning -An Old Idea Whose Time Has Come

  • What Is Least Cost Planning?

  • Quick Corporate Models For Integrated Supply/Demand Strategies

  • Demand-Side Options -Issues and Modeling Problems

  • Trade Off/Risk Methods for Resolving Diverse Objectives

  • A New PTI Short Course ... Least Cost Planning: Integrating Supply and Demand

  • Least Cost Planning Experience


January 1987, Issue 48

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  • Optimizing Plant and System Coal Inventories

  • Excitation Control Concepts

  • Weather Seminar Set for Springt

  • lOOth PSS/E Installed


October 1986, Issue 47

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  • Power Line Carrier Signal Attenuation

  • Transmission Line Uprating -A Systematic Approach

  • Transmission Access -New Argument, New Market

  • PTI Starts EPRI Transmission Limitations Study


July 1986, Issue 46

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  • Power System Stabilizer Intelligence

  • Thermal Uprating of Overhead Lines

  • PTI's Microprocessor-Based Power System Stabilizer: Analog Output Now Available

  • Uprating of Existing Underground Cables


April 1986, Issue 45

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  • Reducing the Need for Staged Field Testing through Computer Controlled Instrumentation

  • Studies of Variable Speed Fan Applications in Power Plants

  • "A Touch of Class"


January 1986, Issue 44

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  • Tower Spotting on the PC

  • Evaluating the Reserve Benefits of Interconnections

  • New Strategic Planning Development

  • EPRI Transmission System Reliability Study Awarded to PTI

  • IGCC Plant Models


October 1985, Issue 43

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  • New Power Plant Performance Analysis System

  • Production Simulation for Planning

  • The Technology Assessment Game

  • HVDC -Its Effect on System Performance and Existing AC System Capability


June 1985, Issue 42

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  • PTI's Role in Industrial Power Systems

  • Protection of Cogeneration and Industrial Generation

  • Harmonics on Industrial Power Systems: Measurement, Analysis and Control

  • Digital Simulator for Industrial Power System

  • Analysis of Process and Steam Supply Transients in Cogeneration Systems

  • The Art and Science of Equipment Failure Investigation

  • Overvoltage Analysis in Industrial Power Systems: Case Study Examples

  • New Short Course: Corporate Models for Strategic Planning


April 1985, Issue 41

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  • Power System Simulator for Utilization Level Work -PSS/U

  • An Expanded Role for Back-to-Back DC Converters?

  • New 12-Phase Project Begins


January 1985, Issue 40

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  • Field Tests Verify PTI's SS/1 Stabilizer

  • Shock Torques Due to Line Switching

  • Accuracy of Modeling Generating Unit Input/Output

  • Lightning Surges on Distribution Lines


October 1984, Issue 39

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  • Performance Characteristics of Series Compensation and Shunt Var Support

  • What Future Role for HYDC?

  • Instrumentation and Analysis of Power System Harmonics


July 1984, Issue 38

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  • Load Flow: Convergence and Accuracy Limitations

  • Analytic Methods in Strategic Planning

  • Transfer Capability Objectives: A Strategic Approach


April 1984, Issue 37

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  • Voltage Support in Heavily Loaded EHV Systems

  • TNA Scheduled for Shipment

  • Predicting the Risk of Voltage Collapse

  • Expanded Computer Support for PSS/E


January 1984, Issue 36

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  • Video Training for Distribution System Operators

  • HPO -What Role in Transmission Networks?

  • Steam Turbine Efficiency Assessments Can Provide Valuable Results

  • First Microprocessor-Based Power System Stabilizer Scheduled for Shipment


October 1983, Issue 35

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  • Voltage Collapse

  • Placement of Distribution Capacitors for Optimum Performance

  • Load Management Effects on Distribution System Design


July 1983, Issue 34

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  • Substations for Railroad Electrification

  • Line Optimization Study -A Progress Report

  • Insulation Coordination in Gas-Insulated Substations

  • TNA Under Construction for Mexico


April 1983, Issue 33

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  • Multicomputer Support of PSS/E

  • Procedures for Accident and Apparatus Failure Investigations

  • State Estimator Planning Studies

  • New Method of Deriving Generator Characteristics by Test


January 1983, Issue 32

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  • Analytical Engineering - An Approach to Problem-Solving

  • Large Scale System Expansion Planning and Design

  • Motor Failure Epidemic –Harmonics

  • Adequacy of Plant Emergency Supply

  • Electric System Response to Hydraulic Problems

  • Shaft Torque Controlled by Electric Parameters

  • Thermal Plant Simulated for Efficiency Studies

  • Railroad Systems -A Special Relaying Challenge


October 1982, Issue 31

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  • Optimal Power Flow Development at PTI

  • HVDC Simulator Technology

  • PTI/EPRI Contract for Transmission Line Design Optimization

  • PTI Expands Load Management Capabilities

  • New PTI Software Products for PDP-II Computers

  • Interactive Simulator for Machine and Network Transients


July 1982, Issue 30

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  • Equipment Models in Dynamic Performance Studies

  • The Current State of State Estimation: Practical vs. Theoretical Considerations

  • Conventional Load Flow and Stability Analysis Applied to the Long-Term Simulation Problem

  • Thermo-Mechanical Bending of Pipe-Type Cables


April 1982, Issue 29

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  • Check Out Simulator for a Direct Digital Control (DDC) Boiler Turbine Control System

  • Analysis of Bulk Power Transmission System Reliability -Part 2

  • Transfer Studies Using TPlan


January 1982, Issue 28

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  • Analysis of Bulk Power Transmission System System Reliability -Part 1

  • Validation of Equipment Models

  • Joint Use of Right-of-Way Studied by Minnesota


October 1982, Issue 27

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  • A Microprocessor Based Power System Stabilizer

  • Impact of Railroad Electrification on Electric Utility Systems

  • New Course and Seminar: Power Plant Maintenance Scheduling

  • Hydro Thermal System Coordination Opportunities


July 1981, Issue 26

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  • Network Harmonic Analysis

  • Electric Utility Strategic Planning

  • Real-Time Monitoring & Control Build a System Yourself?

  • Machine Reenergization Transients


April 1981, Issue 25

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  • Stress in Large Steam Turbine Rotors

  • Transmission Line Economics & Optimization

  • Anti-Galloping Potential of a New Twisted Conductor Design

  • Compact Line Design Reduces Costs by $4500 Per Mile


January 1981, Issue 24

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  • 1980 in Perspective

  • High Phase Order being Tested - II

  • PTI to Build TNA for People's Republic of China


July 1980, Issue 22

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  • Interactive Production Cost Program Update

  • Research on DC Converter Representation

  • UNISYSTEM - PTI's Unified Software Development System

  • PTI Goes to the Dogs


April 1980, Issue 21

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  • Dynamics of Large Wind Turbine Generators

  • TPLAN - an Interactive Transmission Planning Program

  • Negative Damping of Turbine Generator Shaft Modes in Systems without Series Compensation

  • New Phase-Phase Switching Surge Data Substantiates Feasibility of Compact Lines


January 1980, Issue 20

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  • Large Scale Induction Generators for Power Systems?

  • What PTI looks for in Computers

  • Remote Tuning of Automatic Generation Control

  • Boiler Response Tests for Model Verification


October 1979, Issue 19

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  • PTI Cites Tenth Anniversary

  • About PTI


July 1979, Issue 18

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  • A New Method for Contingency Ranking

  • Analysis of Fault Characteristics for Utility Distribution Systems

  • Project initiated on Thermal-Mechanical Bending Problems in Pipe type Cables

  • Power Plant Simulation with Thermal-Hydraulic Load Flow Programs


April 1979, Issue 17

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  • Micro Processor Based Turbine Control

  • Advanced Unit Commitment Software

  • Distribution System High Impedance Faults


January 1979, Issue 16

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  • PTI to Open Power System Studies Center

  • Evaluating the Adequacy of Bulk Power Supply Systems

  • Power System Analysis Application of Array Processors


October 1978, Issue 15

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  • Regional Reliability Studies using a Multi Area Program

  • Digital DC Simulator Program

  • Array Processors - a Promising Newcomer


July 1978, Issue 14

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  • HVDC - A Means of Damping AC System Oscillations?

  • FLECS - A Fortran Preprocessor

  • An Improved Load Model for Stability Studies

  • Work Stations for Interactive Computing


April 1978, Issue 13

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  • PTI's Role in EPRI Research Projects

  • Extending Pipe Cable Section Lengths

  • The Training of Power System Operators


January 1978, Issue 12

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  • A New Interactive Production Cost Program (IPC)

  • PSS/O - A New Interactive Software Package for System Operations Centers

  • 138 kV Bundled Circuit Transmission Test Line Energized


November 1977, Issue 11

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  • Selection of Contingency Cases in Planning Studies

  • Shaft Torques can be a Serious Problem

  • Minicomputer Architecture: Advice for Buyers

  • High Phase Order (HPO) - An Alternative to UHV?


July 1977, Issue 9

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  • Adaptive Load Forecast Program for Spanish Utility

  • PTI Automation System Extends Turbine Life

  • Checkout Simulator for Turbine Operation Programs


March 1977, Issue 8

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  • Report Tells How ... for Smaller Transmission Lines

  • Mexico to Implement PSS/3 System

  • Reliability Analysis of Complex Substations


January 1977, Issue 7

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  • Synthetic Electric Utility Systems

  • Transmission System Design Studies Part III - Overvoltage Studies

  • Synchronous Motor Application


September 1976, Issue 6

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  • Thermo-mechanical Bending Problems in EHV Cable

  • A System Wide Transmission Line Uprating Study


June 1976, Issue 5

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  • One Pass Load Rejection Simulation

  • Minicomputer Economics

  • Transmission System Design Studies Part I - Organization


March 1976, Issue 4

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  • Novel Transmission System to be Evaluated by PTI

  • Interactive Computing Breaks 1000 Bus Barrier - PSS/E

  • Modern Engineering Computer Applications Part 1 - Configurations

  • Single Function Simulations


January 1976, Issue 3

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  • PTI's Role in a Major New 800kV System in Brazil

  • Short Term Load Forecasting

  • More Utility Management Models Applied

  • Transmission Line Electromagnetic Compatibility


October 1975, Issue 2

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  • Subsynchronous Oscillations

  • PTI Consultant to World's Largest NPPTS

  • New Approach to Energy Management Software

  • APS 230kV Cable Project


June 1975, Issue 1

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  • Interactive Returns

  • High Phase Order Transmission

  • New Overhead and Underground T-line Experimental Programs

  • Improve Stability Studies

  • Bulk Power System Reliability Assessment - RAP/1

  • Boiler Gas Path Simulated for Implosion Studies


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