Electrical Power Systems Quality, Second Edition phần 7 pdf

... 18 .76 5 13.619 Mean 56.308 28 .72 9 18.422 8.926 3.694 33.293 25.390 18.535 CP95† 135.185 66.260 51.000 27. 0 37 13.519 71 .413 51.500 38.238 Maximum 2 07. 644 103.405 70 .535 56.311 35.689 149.488 140 .76 8 ... Seven –200 –150 –100 –50 0 50 100 150 200 0.000 0.058 0.1 17 0. 175 0.233 0.292 0.350 0.408 0.4 67 0.525 0.583 0.642 0 .70 0 0 .75 8 0.8 17 0. 875 0.933 Time (s) Voltage (V)...

Ngày tải lên: 08/08/2014, 15:21

... website. Electrical Power Systems Quality, Second Edition CHAPTER 1: INTRODUCTION What is Power Quality? Power Quality Voltage Quality Why Are We Concerned About Power Quality? The Power ... 80 –50 –30 –10 10 30 50 70 Time (ms) Current (A) Current (A) Max: Min: Avg: Abs: RMS: CF : FF : 313.9 07 – 171 .70 4 33.5332 313.9 07 64.3862 4. 875 37 1.920 07 ASD I...

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... 132 0. 67 D 1LG Reusens 132 0. 67 D 2LG Arizona 132 0. 67 C 2LG Ohio 132 0 .7 C L-L Arizona 132 0 .7 C 3LG Fieldale 132 0 .72 A L-L Ohio 132 0 .73 C 2LG Fieldale 132 0 .76 C 3LG New Hampshire 33 0 .76 A 1LG ... New Hampshire 33 0 .76 A 1LG Ohio 132 0 .77 D 3LG Vermont 33 0 .77 A L-L Fieldale 132 0 .78 C 1LG Arizona 132 0 .78 D 2LG Vermont 33 0 .79 C L-L Vermont 33 0 .79 C 3LG Minnesota 3...

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... 1.95 1.55 900 9 1. 97 1.45 900 14 1.98 1.39 1200 4 1.94 1.50 1200 9 1. 97 1.40 1200 14 1.98 1.34 1800 4 1.92 1.42 1800 9 1.96 1.33 1800 14 1. 97 1.28 SOURCE: Courtesy of Cooper Power Systems. Transient ... Understanding Power Quality Problems, Voltage Sags and Interruptions, IEEE Press Series on Power Engineering, The Institute of Electrical and Electronics Engineers, Inc., New Y...

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... three-phase power converters, arcing devices, and saturable devices. Sections 5 .7. 1 to 5 .7. 3 detail the industrial load characteris- tics. 5 .7. 1 Three-phase power converters Three-phase electronic power ... 33.3 50.0 66 .7 83.3 100.0 116 .7 –300 –200 –100 0 100 200 300 Time (ms) Current (A) dc Link Voltage during Capacitor Switching 33.3 50.0 66 .7 83.3 100.0 116 .7 500 5...

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... 2.0 1.0 0 .75 0.3 0.15 2.5 20–50 3.5 1 .75 1.25 0.5 0.25 4.0 50–100 5.0 2.25 2.0 0 .75 0.35 6.0 100–1000 6.0 2 .75 2.5 1.0 0.5 7. 5 Ͼ1000 7. 5 3.5 3.0 1.25 0 .7 10.0 V n Ͼ 161 kV Ͻ50 2.0 1.0 0 .75 0.3 0.15 ... Interharmonics Measurements and Instrumentation, for Power Supply Systems and Equipment Connected Thereto,” SC77A, 2000, Draft. 5. N. Mohan, T. M. Undeland, W. P. Robbins, Power...

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... to use a 274 Chapter Six 010203040 Time (ms) 50 60 70 80 –1000 –500 0 500 1000 Current (A) Harm Fund 3rd 5th 7th 9th 11th 13th 15th % 100.0 65 .7 37. 7 12 .7 4.4 5.3 2.5 1.9 Phase – 37 – 97 –166 113 –46 –158 92 –51 Harm 17th 19th 21st 23rd 25th 27th 29th 31st % 1.8 1.1 0.6 0.8 0.4 0.2 0.2 0.2 Phase –151 84 –41 –148 64 –25 –122 102 Figure ... 300 0. 377 0.142 3.553 7 12 .70 420 0.1 27...

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... the distribution sys- tem power quality. While the energy conversion technology may play some role in the power quality, most power quality issues relate to the type of electrical system interface. Some ... machine. 9.3.3 Electronic power inverters All DG technologies that generate either dc or non power frequency ac must use an electronic power inverter to interface with the...

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... Transactions on Power Apparatus and Systems, Vol. PAS-94, No. 5, September/October 1 975 , pp. 1843–1853. 10. IEEE Standard P15 47, Distributed Resources Interconnected with Electric Power Systems, Draft ... Conference Record, IEEE Catalog No. 01CH 372 14, Little Rock, Ark., May 2001, Paper No. 01-A3. 7. Electrical Distribution-System Protection, 3d ed., Cooper Power Systems, Fran...

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... feature in many power quality analysis software programs. 0 20 40 60 80 100 120 Count 6 870 6910 6950 6990 70 30 70 70 71 10 71 50 71 90 72 30 72 70 73 10 73 50 73 90 74 70 75 10 75 50 75 90 74 30 0% 10% 20% 30% 40% 50% 60% 70 % 80% 90% 100% Cumulative ... summaries). Power Quality Monitoring 4 97 Samples: 1404 Minimum: 6 873 .0806 Average: 72 84 .70 99 Maximum: 76 00....

Ngày tải lên: 08/08/2014, 15:21