EE587_Ch5_part 1_sp10

EE587_Ch5_part 1_sp10 - EE 587 – Electric Power...

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Unformatted text preview: EE 587 – Electric Power Distribution/Utilization Dr. M. Safiuddin, Research Professor Department of Electrical Engineering University at Buffalo [ State University of New York ] 2/18/2010 EE 587_Sp. '10 1 EE 587 Electric Power Distribution/Utilization TEXT BOOK: ANSI/IEEE -Std. 141-1993 [ The Red Book]; Published by Institute of Electrical & Electronics Engineers, New York. Lecture Topics: 1. 2. 3. Introduction, System Planning & Design Course orientation, Overview, Definitions, Planning guide for the supply and distribution system [Ch 2] Voltage Considerations Voltage control, Voltage selection, Effects of voltage variations on low and medium voltage equipment, voltage quality considerations.[Ch. 3] System Protection I Sources of fault currents, Fundamentals of fault current calculations, Restraints of simplified calculations, Example case studies. [Ch. 4] EE 587_Sp. '10 2 2/18/2010 1 EE 587 Electric Power Distribution/Utilization Lecture Topics (cont’d): 4. System Protection II Analysis of system behavior and protection needs, Protective devices and their applications, Protective relays, Breakers and fuses, Protection requirements for transformers, Feeders and motors.[ Ch. 5] Surge Protection I Nature of the problem, Traveling wave behavior, Insulation voltage withstand characteristics. Arrester characteristics and ratings, Arrester selection, Application concepts.[Ch. 6] Grounding Considerations Introduction, System grounding, Equipment grounding, Static and lightning protection grounding, Connection to earth, Ground resistance measurement. [Ch. 7] 5. 6. 2/18/2010 EE 587_Sp. '10 3 EE 587 Electric Power Distribution/Utilization Lecture Topics (cont’d): System Power Factor Power factor fundamentals, Typical plant power factors, Reactive compensation techniques.[ Ch. 8] 8. Mid-term exam 9. Power System Pollution Non-linear loads, Voltage and current harmonics, Passive and active filtering techniques.[ Ch. 9] 10. System Interfaces I Switchgear and other equipment, Transformers, Unit substations, Motor control Centers.[ Ch. 10] 7. 2/18/2010 EE 587_Sp. '10 4 2 EE 587 Electric Power Distribution/Utilization Lecture Topics (cont’d): 11. Energy Conservation & Management I Energy audits, case studies.[Ch.14] 12. System Interfaces II Industrial substations, Plant utility interface considerations.[Ch. 15] 13. Energy Conservation & Management II Elec. Energy issues, DC & AC machine efficiency & application considerations 2/18/2010 EE 587_Sp. '10 5 Ch. 5- System Protection II ! $ ( 2/18/2010 " % & ') EE 587_Sp. '10 # ' ) ' 6 3 Fundamental considerations *' + # ' ) ' #, + % ' ' ' ' ' + &. % 2/18/2010 EE 587_Sp. '10 7 5.1 - Purpose / ' ) + ' ' ' ) '' ' & ' ) ) ! 2/18/2010 EE 587_Sp. '10 8 4 5.1 - Purpose # 1 & 2 0 # ' 2/18/2010 EE 587_Sp. '10 9 5.2- Analysis of system behavior and protection needs 3 ' 5 *' ' * ) + ) ' 2/18/2010 EE 587_Sp. '10 10 + 4 ' ' ) + ' ) + 6 #' # # ' #' # ' ' # % ' # ' ' 5 5.2- Analysis of system behavior and protection needs * ' ' )+ ' 5 + / ' ! 7'# ' ' ' ' ' ) + ) # #' ) # #' * ) ' # + ' 2/18/2010 EE 587_Sp. '10 11 2/18/2010 EE 587_Sp. '10 12 6 2/18/2010 EE 587_Sp. '10 13 "#% #$ & ' ( )* ) 2/18/2010 EE 587_Sp. '10 14 7 5.3 Protective devices and their applications 5 ' , 9, 4 9, ;8 : >7 0 9, # % + , 2/18/2010 85 9, # 0 $ ! 2 ;8 : # #% $ ;8 / 8? 8, 4 1 @ 9, $ ! ;8 ' ' # 9, # # ' + 9, 9, 8, + : ;8 , => ;8 9, ;8 1 ;8 ' 8 # #+ 9, ! ;8 9, +# ' ( ;8 8 ;8 < # 8 ) IEEE_Std_C37.2._2008: *333 ) EE 587_Sp. '10 3 , + ' 15 2/18/2010 EE 587_Sp. '10 16 8 2/18/2010 EE 587_Sp. '10 17 2/18/2010 EE 587_Sp. '10 18 9 2/18/2010 EE 587_Sp. '10 19 5.3.20 Fuses AB ' ' 1 ' + 2 +# + 1 @ *- ! 2 +# ' @ 3. 2/18/2010 + ' + ) C + 1 ' 9 ' ==: ; 9 ' ==: ; C # === -! # (( C 1" # ($ @ *>" 2 EE 587_Sp. '10 ($ 20 10 5.3.20 Fuses Knife Blade Fuses Glass Tube Fuses Ferrule Type Fuses 2/18/2010 EE 587_Sp. '10 21 5.3.20 Fuses #+, $- 2/18/2010 EE 587_Sp. '10 22 11 5.3.20 Fuses C* /+ ' 4 ' # . 2/18/2010 EE 587_Sp. '10 23 5.3.20 Fuses - 2/18/2010 EE 587_Sp. '10 24 12 5.3.20 Fuses / ? 3, D , # 3 1 G3 ' G3 G/ 2/18/2010 4 + ' + 1 C # ' + + + + ) ' ≤ + + 8 9E = = : ;) :) ' = ) %)*- F ' ' = )= = = C ' ' 25 # ' EE 587_Sp. '10 5.3.20 Fuses 1 . 9' ' ;C C ) - 71 H ? I 2 '# # # # ' ' ' ' 2/18/2010 EE 587_Sp. '10 26 13 5.4 Performance limitations / + . ' '' + ) % + # ' J ' ' + / # ' ' * IEEE Comm. Report “The Impact of Sine-Wave Distortions on Protective Relays; IEEE Transactions on Industry Applications; vol.IA-20; pp 335-343, Jan/Feb 1984 2/18/2010 EE 587_Sp. '10 27 5.5 Principles of protective relay application + ! + + + ' C 2/18/2010 EE 587_Sp. '10 28 14 5.5 Principles of protective relay application 2/18/2010 EE 587_Sp. '10 29 2/18/2010 EE 587_Sp. '10 30 15 2/18/2010 EE 587_Sp. '10 31 5.6 Protection requirements / #/ # . %5 KL G Transformers with primary & secondary protection Transformer rated impedance Secondary Primary >600 V CB setting 600 Fuse rating 300 Over 600 V CB setting Fuse rating 250 ≤ 600 V CB setting or fuse rating 250 No more than 6% 300 > 6% --- ≤ 10% 400 300 250 225 250 2/18/2010 EE 587_Sp. '10 32 16 Table 5-2 – Transformer withstand limits prior to IEEE Std C57.109 - 1993 Impedance (percent) 4 5 6 7 and above 2/18/2010 Current (time base value 25 20 16.6 14.3 or less EE 587_Sp. '10 Time (seconds) 2 3 4 5 33 Figure 2- IEEE Std.C57.109-1993 2/18/2010 EE 587_Sp. '10 34 17 2001 reaffirmed 2006 2/18/2010 EE 587_Sp. '10 35 2/18/2010 EE 587_Sp. '10 36 18 "/ # #@ 1 3 C 0 E M ==: )+ ==L ==L ' + ' '# # 9 * ; / # ) -D ==: 1 2/18/2010 EE 587_Sp. '10 37 5.6 Protection requirements "/ ## * +' ' 1 # = 4 +) [I/A] 2 t = K log10 [ (T2 + α)/(T1 + α)] & .& .& " " 2/18/2010 $- & # # #$ & # $% & $% & EE 587_Sp. '10 $ '( + α& α& )* , 38 19 5.6 Protection requirements 2 * 4 " ' ' + C : ? ' ' + 2/18/2010 EE 587_Sp. '10 39 2/18/2010 EE 587_Sp. '10 40 20 5.6 Protection requirements ### 1 4 + ) 52 = @ 3.- 2/18/2010 EE 587_Sp. '10 41 21 ...
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This note was uploaded on 02/16/2011 for the course EE 587 taught by Professor Dr.mohammedsafiuddin during the Spring '11 term at SUNY Buffalo.

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