Spring Semester 2017
EERC L100
- M,W,F 2:05-2:55 pm
Course Syllabus |
Text & References | Pre-Req
Material | Useful Web Links | Grades to Date | Term Project
Teams
Updated Through: Week 14
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Week - Reading
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Lecture Notes |
Homework, Tests, Solutions, Deadlines |
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1 - Ch. 1,2,3,10 |
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Introduction, Startup,
Philosphy of System Protection, Bus configurations, Substation/Equipment Photos |
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Jan 16th
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MLK Day
- No Lecture (Lecture 4 does not exist). Protective device numbers, Instrument Transformers | Basic Info on MR CTs Assignment
#2 - Probs. 3.1, 3.2, 3.3 | Due Jan 23rd, 9am (extended to Jan
26th 5pm) (short problems, transformer connections)
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12.5 & 12.6 |
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Assn #3B: Symm Components - Due Feb 27th, 9am (in
teams of 3) | 3-Ph Xfmr Phase Shift Tutorial
Assignment #4 - Due Feb 8th, 2:00pm Example of radial coordination for ground faults | Assignment #5 - Due Feb 20th |
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4 - Ch.3,4 |
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Effective burden on CT, CT stds, MR CTs, CT equivalent circuit |
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5 - Ch.3, Ch.5 |
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Assignment #7 – Prob 3.4 & 4.1 | Soln - Due Mar 6th, 9:00am (Winter Carnival - Lecture 15 does not exist) |
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6 - Ch. 3, 5, 6 |
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Misc Topics: Synch Check Relays (25/27), more on reclosing.
Reclosing on 69-kV 3-terminal line V-I relationships during fault, intro to 67 relay application Polarization, Directional Phase & Ground Overcurrent Concepts. Assignment #8 (due 9am Mar 13th) Wrapup on 67 relays, intro to distance relaying. |
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7 - Ch. 6, Ch.12 |
L19 - Feb 20th L20 - Feb 22th L21 - Feb 24th Demeny Notes Suppl. Video Suppl. Video Suppl. Video |
Near-end faults, polarization memory, CCVT subsidence
transient, limits of VT connections for zero sequence polarization. Basics of impedance protection More on distance/impedance protection, intro to differential protection Guest Lecture: Kevin Demeny. Topic: Arc Flash Hazards, Mitigation, Protection Tom Ernst, Minn Power. Guest Tutorial on Aspen. Arc flash hazard issues. Help Week7A: including pre-req review on symm components in context of homework 4.1. Help Week 7B: general review of symm components, Zp <=> Zs, Sequence Networks Short Circuit Calcs - Dr. Bohmann Fault Tutorial, repeated from EE5200 Term Project - Detailed Table of Contents (i.e. work plan) and reference list - due 5pm Fri Mar 17th. |
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8 - Ch.7
Grounding Ch. 4,12 Distance/impedance relaying |
L22 - Feb 27th L23 - (Sp'11) L24 - (Sp'11) L22 (Sp'09) L23 - Mar 1st L24 - Mar 3rd Suppl. Video Suppl. Video |
Fault Calcs for 2-winding
transformers, 3-lines, phase shifts, Fault Calc
Examples More on sequence networks - transformer phase shifts, zero sequence behaviors. Fault Calcs, Sequence networks, fault contributions ; Assn#8A - ResonantGrnding - due 9am Mon Mar 20th. Prof. Høidalen - Protection with isolated ground Prof. Høidalen - Protection with resonant grounding Review: Sequence Network example, 3-winding transformers Review: Fault current contributioins, V and I at relay. Winding currents, zero seq currents in 3-winding xfmr Help Week8: observations on fault currents, hints on Hmwk 8, voltage profile along faulted line. Impedance Relaying, R-X diagrams, Zone 1, 2, 3, reach, forward & reverse. Basic distance relaying concepts; line differential protection, bus protection Pos/Neg/Zero squence networks for 3-winding transformers, zero-squence polarizing sources |
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March
6-10th
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Spring Break - Make a clean break from your
work and have fun ! |
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Midterm will consist of grades
on two upcoming homework sets (worked individually). Details
to come. Transmission Line relaying - read §6.5.5 - 6.7, §12.12 - §12.16. Assn#9 - Due 9am Mon Mar 27th Special issues related to line protection: Zone 2 and Zone 3, Ground potential rise Line protection issues (cont'd): three-terminal lines, series caps. Tom Ernst Guest Lecture (play video) - Setting Relays for Line Prot., File 1 | File 2 | File 3 |
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10 - Ch. 4, Ch.9 |
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Assn#10: Probs 4.2,
4.3 a,b,c and 4.4 - Due Mon Apr 3rd 9am. Help: Notes (Video also on Canvas)
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11 - Ch. 9, Ch.10 |
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Differential protection
of Transformers (87T) 87T Applications Example 87T applications example, mismatch, CT saturation, Protection of Gnd Xfmrs & Shunt Reactor Bus Protection - 87B; Bus Prot Homework #11 - Prob. 10.1 due Apr 10th 9am 87B Applications example | video: moderate-Z vs. high-Z. Differential protection of Generators (87G) |
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12 - Ch. 10 |
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Intro to Cap Bank Protection
Applications; Photo of 115-kV Cap Bank (2 banks, w/current-limiting
reactor) Guest Lecture: Tom Ernst, Minn Power (posted on Canvas) Cap Bank Protection | IEEE C37.99-2012 (download from Xplore) Cap Bank Wrapup; Synchronous Switching Submit working prototype (preliminary results) and rough draft of project report - Mon Apr 10th, 9am. |
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Transient Overvoltages
due to Shunt Cap Bank Switching: Tutorial | ppt Safety (cont'd); Relay impedance; Generator grounding; Grounding Transformers |
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14 - Ch. 14 |
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Guest Lecture
on Electric Vehicle and related protection issues Semester
Wrapup. Paper on DSP methods for
distance relaying ; SCADA
Protocols; |
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Finals Week |
Mon Apr 24th |
Final Exam Timeslot / Term Project Presentations - Location EERC 103 (3:00
- 5:00pm) |
Course Description and Learning Goals:
Students who complete this course will have gained a theoretical and applied
understanding of power system protection. The performance of
instrument transformers, transducers, protective
relays, and circuit breakers is first addressed. These devices
are then integrated into coordinated
protective systems for generators, transformers,
transmission lines, reactors, capacitor banks, system buses, etc.
Although basic protection concepts
are hardware-independent, the application of
electromagnetic, solid state, and microprocessor-based relays
will also be discussed. Trade-offs
between reliability, selectivity, speed, simplicity,
and economy are emphasized. A hands-on lab project, using state
of the art equipment, will also be
completed during the course.
Topics Covered (depending on priorities and available time):
