EE Lecture 15 (recorded Feb 9, 2011) Fri Feb 15, 2013

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1 EE Lecture 15 (recorded Feb 9, 2011) Fri Feb 15, 2013 Ongoing List of Topics: URL: Term Project - structuring, details Exercises posted Today: Reclosing - radial vs. grid system Short circuit protection in grid systems Directional overcurrent Impedance Voltage & Current relationships during faults, X/R ratio, dc offset, decay of dc offset Relative angles and magnitudes of all Vs & Is during fault Basic connections of directional overcurrent (67) relays. Phase relays - each line current is polarized with V LL from other phases. Ground relay - residual current (3I ao ) polarized with V broken delta (3V ao ) Excellent Illustrations: figures 3.7 thru 3.10

2 EE 5223 Term Project (updated: Feb 13, 2013) Spring 2013 A term project shall be done in lieu of a final exam. Teams of 2 are suggested. Teams of 3 are possible, with proportional increase in project scope. Team requirement: no more than one BS student per team. The objective is to actively figure out and explain the underlying concepts, key relationships and equations, implement, test, and document the engineering details. Goal of report: a tutorial to document technical background, get another engineer up to speed on what you have done, explain the implementation, and present the results. The project you choose: must be of topical interest, must relate to course material of EE5223. must demonstrate level of mastery and application of the related concepts and theories, at the level of the EE5223 course. includes a detailed literature search (applications magazines, standards, and journal papers) and Reference List, with salient concepts summarized in Background section of report. You ll also need to do a technical review of the journal paper that is most related to their project. length of body of report: approximately 10 pages of text (not including figures, tables, equations, or appendices). Time line and required submissions are as follows. All deliverables contribute to the grade of your term project. Approximate schedule is: Week 6 (Friday): submit short with idea(s) requesting instructor feedback. Week 7 (Friday): submit formal outline of project and list of key references. Week 9: submit updated outline of project and complete reference list. Week 12: Submit rough draft of project report Week 14: Submit final report/deliverable. Finals week: be prepared to present/demonstrate project. Report Outline/Table of Contents (copy and paste this to start your Table of Contents): Title Page - Include project title, course name, authors names, revision date Executive Summary (not needed for initial draft) Table of Contents (use as working outline ) Statement of contributions by each team member, signed in agreement by all. Introduction (brief overview of project: problem area, motivation, overview of project) Background literature search, most important references Presentation of key concepts connected with project Identification of existing voids or weaknesses, and resulting opportunity Proposed Approach and Application Overview of basic idea that you will develop and implement Development and implementation details Implementation (may not be complete in draft versions) Results and Performance (in earlier draft reports, this can be the Expected Results) Conclusion Recommendations for Continued Work Reference List (IEEE format, numbered [1], [2], etc, in order of first author s last name) Appendices as required to document details. Include journal paper & review as one appendix. Page layout: Font: 11-pt CG Times w/ line spacing; or 10-pt comic or ariel w/ line space Page layout: 1" margins, include page numbering

3 In Printed for Bruce Mork Page 1 of 1 2/9/2011 To: ee5223-l@mtu.edu From: Bruce Mork <bamork@mtu.edu> Subject: [ee5223-l] access to IEEE Xplore Just to point your attention to how to access IEEE xplore database if you are off-campus, including our online students. Those who took EE5200 last semester will be already be aware of this. From here you can access all IEEE journal articles, magazine articles, and standards (this can be a perk for you in industry if you don't already have free access to standards). I've also provide links to as many technical journals and magazines I could find. Let me know if a link is broken or if you have some additions you'd like to make to the list. Getting back to IEEE Xplore, I've provided a direct link via MTU's library. If you're accessing from off campus, you'll just need to provide your MTU login and password. Directions: From our course web page, click on Useful Web Links. You'll arrive at this section of the web page (I've pasted it here for your convenience, but the links may not come thru in your ): Useful References, Journals, Publications Research Journals and Transactions IEEE Xplore - online database of all standards, and all articles since 1989 MTU ISO login Help Info MTU Initial Sign-On IEEE Transactions on Power Systems IEEE Transactions on Power Delivery IEEE Transactions on Industrical Applications IEEE Transactions on Power Electronics IEE Proceedings - Generation, Transmission and Distribution IEE Proceedings - Electric Power Applications ETEP - European Transactions on Electric Power Magazines on Computer Methods and Engineering Applications IEEE Computer Applications in Power (CAPS) IEEE Industry Applications Magazine IEEE Power Engineering Review Engineering Applications Magazines Electrical World T&D - Subscribe Free Electric Light & Power - What's Happening in the Electric Power Industry Transmission & Distribution World - "T&D Magazine" - Subscribe Free Power Engineering International - International Power Industry News Power Magazine - Subscribe Free Power Quality Magazine Power Technology International Connecting Power/Modern Power Systems - E-zine for International News/Trends in the Power Industry

SEL-351S Protection and Breaker Control Relay Optimize Distribution Protection, Automation, and Breaker Control Apply the SEL-351S Relay to enhance your service quality through integrated protection,

Use directional control elements in looped systems. Provide high-speed operation, even with severe CT saturation, using SEL Adaptive Overcurrent Element.

8 SEL-351S Protection and Breaker Control Relay Optimize Distribution Protection, Automation, and Breaker Control Apply the SEL-351S Relay to enhance your service quality through integrated protection, monitoring, and control. Features and Benefits Overcurrent Protection Protect lines and equipment using a sensitive and secure mix of phase, negative-sequence, and ground overcurrent elements. Use directional control elements in looped systems. Provide high-speed operation, even with severe CT saturation, using SEL Adaptive Overcurrent Element. Apply recloser time-overcurrent curves for coordination with and sequencing of downstream reclosers. Operator Controls and Reclosing Use direct-action operator controls to eliminate the need for expensive, panel-mounted control switches and associated wiring. Integrate automation elements, including remote, local, and latch switches, plus display points, for remote and local control. Selectively reclose with synchronism and voltage checks. Relay and Logic Settings Software Use acselerator QuickSet SEL-5030 Software to reduce engineering costs for relay settings and logic programming. Use graphical tools included with acselerator to develop SELogic control equations. Develop SELogic control equations using acselerator Software. Accurate Metering and Monitoring Use built-in, high-accuracy metering functions to eliminate expensive, separately mounted metering devices. Improve maintenance scheduling using circuit breaker contact wear and substation battery voltage monitors. Sequential Events Report Analyze Sequential Events Recorder (SER) and oscillographic event reports for rapid commissioning, testing, and post-fault diagnostics. Making Electric Power Safer, More Reliable, and More Economical

9 Functional Overview Bus SEL-351S Relay SELOGIC Control Equations Event Reports G P 81 O U Q Sequential Events Recorder 3 Breaker Wear Monitor Station Battery Monitor DNP3 Level 2 Slave* High-Accuracy Metering 3 67 P G Q 50 P G Q 51 P G Q 32 Q V I 32 MIRRORED BITS Communications* Communications-Assisted Tripping Remote and Local Control Switches 1 67N 50N 51N 25 Wye or Delta Voltage Connection Local Display and Operator Controls Synchrophasor Measurements Breaker Load Profile* Fault Locator Fast SER Protocol Auxiliary Trip/Close Control* Voltage Sag/Swell/Interruption Records* Feeder User-Configurable Labels* Sensitive Earth Fault Protection and Directional Protection for Various System Grounding Practices* * Optional Functions Coordinate Overcurrent Protective Devices Use any of the 38 traditional recloser curves in the SEL-351S Relay to timecoordinate with downstream circuit reclosers. Sequence coordination keeps the SEL-351S in step with downstream reclosers and prevents tripping by overreaching overcurrent elements for faults beyond reclosers. Five standard US and IEC timeovercurrent curves provide coordination with other timeovercurrent relays. SEL-351S SEL-351S 52 t Delay Curves Fast Curves I R EC L O SE R SEL-351R SEL-351R Retrofit older existing reclosers with the SEL-351R Recloser Control.

EE Lecture 14 Wed Feb 8, 2017

EE Lecture 14 Wed Feb 8, 2017 EE 5223 - Lecture 14 Wed Feb 8, 2017 Ongoing List of Topics: URL: http://www.ece.mtu.edu/faculty/bamork/ee5223/index.htm Labs - EE5224 Lab 3 - begins on Tues Feb 14th Term Project - details posted. Limit