ECE525: Power System Protection and Relaying

Lecture 1

• Summer 2009 Welcome
• Summer 2009 Due Dates
• Course Syllabus, Summer 2009
• Lecture 1 notes
• Areva NPAG Information
• Personal Background and Course Objectives (HW #0)
• Intro to Protection

Lecture 2

• Lecture 2 notes

Lecture 3

• Lecture 3 notes

Lecture 4

• CTs and VTs

Lecture 5

Additional References

• Link to SEL paper: "Current Transformer Concepts" (this takes you to the SEL web site, free registration may be required)
• Link to SEL paper: "Determine Current Transformer Suitability Using EMTP Models" from 1999 Western Protective Relay Conference (this takes you to the SEL web site, free registration may be required)
• Link to SEL paper: "Distance Element Performance Under Conditions of CT Saturation" (this takes you to the SEL web site, free registration may be required)

Lecture Handouts

• CT Model with saturation (PDF)
• CT Model with saturation (MathCAD 2000)

Lecture 6

Handouts

• MathCAD example from class (MathCAD 2000)

Reference Material

• Information on ordering book "Analyzing and Applying Current Transformer

Lecture 7

• Lecture 7 notes
• Lecture 7 Presentation
• Example (PDF format)
• Example (MathCAD 2000 format)

Lecture 8

• Lecture 8 example: file from lecture 5 modified (PDF)
• Lecture 8 example: file from lecture 5 modified (MathCAD 2000)

Lecture 9

Additional References

• Trench: Overview of Capacitive Voltage Transformers
• Trench: Transient Performance of Capacitive Voltage Transformers
• Link to GE Multilin paper "Distance Relays and Capacitive Voltage Transformer-Problems and Solutions" (this takes you to GE web site)
• Review: Link to SEL paper "Capacitive Voltage Transformers: Transient Overreach Concerns and Solutions for Distance Relaying" (this takes you to SEL web site, free registration required)

Lecture Handouts

• CCVT example (PDF)
• CCVT example (MathCAD 2000)
• Lecture 4 Handout: Presenters Notes on each page

Lecture 10

• No new handouts

Lecture 11

• Device Numbers
• Lecture 11 notes

Lecture 12

• Lecture 12 notes

Lecture 13

• Handout on fault analysis with symmetrical components for Lectures 13 and 14
• Lecture 13 notes

Lecture 14

• Handout on symmetrical components for Lecture 14
• Lecture 14 notes

Lecture 15

• Sequence Connections for Single Phase Unbalance
• Series unbalance symmetrical components example
• Problem statement for example
• Solution to example (PDF)
• Solution to example (MathCAD2000)
• Lecture 15 notes

Lecture 16

• Lecture 16 notes

Lecture 17

• Unbalanced Fault Examples (PDF)
• Unbalanced Fault Examples (Mathcad 2000)
• Lecture 17 notes

Lecture 18

• Lecture 18 notes

Lecture 19

• Handout on sequence models of lines and generators
• Line Constants Example (PDF)
• Line Constants Example (Mathcad 2000)
• Zbus Fault Calculations (PDF)
• Zbus Fault Calculations (Mathcad 2000)
• Lecture 19 notes

Lecture 20

• Example with single phase open (PDF)
• Example with single phase open (MathCAD2000)
• Lecture 20 notes

Lecture 21

• Lecture 21 notes
• Correction to Hw 2

Lecture 22

• Lecture 22 notes

Lecture 23

• Lecture 23 notes

Lecture 24

• Directional elements (PDF)
• MathCAD directional element implementation (PDF)
• MathCAD directional element implementation (MathCAD2000)
• Lecture 24 notes

Lecture 25

• Lecture 25 notes

Lecture 26

• Lecture 26 notes

Lecture 28

• Lecture 28 notes
• Review: Link to SEL paper "Review of Ground Fault Protection for Grounded, Ungrounded and Compensated Distribution Systems" (this takes you to the SEL web site, free registration may be required)

Lecture 29

• Importing COMTRADE files to MathCAD
• Creating COMTRADE files from ATP output
• Importing ATP files directly to MathCAD (PDF)
• Importing ATP files directly to MathCAD (MathcCAD 2001i)
• Input filtering for raw ATPData in MathCAD (PDF)
• Input filtering for raw ATPData in MathCAD (MathCAD2001i)
• Note the input filtering model came from Link to SEL paper: "Determine Current Transformer Suitability Using EMTP Models" from 1999 Western Protective Relay Conference (this takes you to the SEL web site, free registration may be required)
• Lecture 29 notes

Lecture 30

• Link to SEL paper: Deterministic High-Impedance Fault Detection and Phase Selection on Ungrounded Distribution (this takes you to the SEL web site, free registration may be required)
• Link to SEL paper: Advanced Commercial Power System Protection Practices Applied to Naval Medium Voltage Power Systems (this takes you to the SEL web site, free registration may be required)
• Link to SEL paper: Selecting Directional Elements for Impedance-Grounded Distribution Systems (this takes you to the SEL web site, free registration may be required)
• Lecture 30 notes

Lecture 31

• Summary of grounding impedance schemes
• Grounding example problem (PDF)
• Grounding example problem (MathCAD 2001i)
• Lecture 31 notes

Lecture 32

• Inverse time overcurrent relays
• Setting inverse time overcurrent relays
• Richard Wall's Protection Course Notes (draft textbook)
• Lecture 32 notes

Lecture 33

• Lecture 33 notes

Lecture 34

• Lecture 34 notes

Lecture 35

• Lecture 35 notes

Lecture 36

• Lecture 36 notes

Lecture 37

• Lecture 37 notes

Lecture 38

• Bus Relay Model Simulation Results
• MathCAD Implementation of a low impedance bus differential relay (pdf)
• MathCAD Implementation of a low impedance bus differential relay (Mathcad 2001i)
• COMTRADE files with internal and external faults (zip archive format)
• Lecture 38 notes

Lecture 39

• Lab 2 posted for Engineering Outreach--see below
• Lecture 39 notes

Lecture 40

• Lecture 40 notes

Lecture 41

• Derivation of K0 factor (PDF)
• Derivation of K0 factor (MathCAD 2001i)
• Lecture 41 notes

Lecture 42

• Lecture 42 notes

Lecture 43

• MathCAD example using m-line distance element(PDF)
• MathCAD example using m-line distance element (MathCAD 2001i)
• Impact of Remote Infeed on Distance Elements(PDF)
• Impact of Remote Infeed on Distance Elements (MathCAD 2001i)
• Lecture 43 notes

Lecture 44

• Review: Link to SEL paper on Distance Relay Element Design(takes you to SEL web site, free registration required)
• Review: Polarized Mho Distance Relays (PDF)
• Review: Link to SEL paper "Z=V/I Does Not Make a Distance Relay" (this takes you to SEL web site, free registration required)
• Lecture 44 notes

• Homework 1 (PDF) due session 16 (Oct 1 on campus, Oct 15 EO)
• Homework 1 (MathCAD 2000) due session 16 (Oct 1 on campus, Oct 15 EO)

• Homework 2 (PDF)-- corrected due session 21 (Oct 13 on campus, Oct 27 EO)
• Homework 2 (MathCAD 2000)--corrected due session 21 (Oct 13 on campus, Oct 27 EO)
• Correction to Hw 2

On-Campus Lab 1

• Lab 1 (on campus), report due Nov. 7)
• Lab 1 (on campus) revised figure, report due Nov. 7)

Engineering Outreach Lab 1

• Lab 1 Engineering Outreach Overview Slight Update (PDF) Due Nov 24
• Lab 1 Engineering Outreach Overview Slight update (MathCAD 2001i) Due Nov 24
• Lab 1 Relay Model (PDF)Update to ground element logic
• Lab 1 Relay Model (MathCAD 2001i, works correctly with Mathcad 13 or higher)Update to ground element logic
• Comtrade Files for All Faults at Location A (zip)
• Comtrade Files for All Faults at Location B (zip)
• Comtrade Files for All Faults at Location C (zip)

• Homework 3 (PDF) due session 37 (Nov. 19 on campus, Dec. 10 EO)

EO Lab 2--Due Dec 16, 2008. A remote access version is not available due to time constraints

• Lab 2 Assignment
• Lab 2: Directional Relay (PDF copy for reading)
• Lab 2: Directional Relay (MathCAD 2001i or higher)
• Lab 2 Comtrade Files (zip)

Lab 3--Due Dec 12, 2008 (on campus) or Jan. 5 2009 (EO). A remote access version is not available due to time constraints

• Lab 3 Assignment
• Lab 3: Distance Relay (PDF copy for reading)
• Lab 3: Distance Relay (MathCAD 2001i or higher)
• Lab 3 Comtrade Files (zip)