Electrical Power Systems Quality, Second Edition phần 7 pdf
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)...
Electrical Power Systems Quality, Second Edition phần 1 pot
... 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...
Electrical Power Systems Quality, Second Edition phần 2 ppsx
... 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...
Electrical Power Systems Quality, Second Edition phần 3 pptx
... 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...
Electrical Power Systems Quality, Second Edition phần 4 docx
... 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...
Electrical Power Systems Quality, Second Edition phần 5 pps
... 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...
Electrical Power Systems Quality, Second Edition phần 6 pot
... 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...
Electrical Power Systems Quality, Second Edition phần 8 pps
... 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...
Electrical Power Systems Quality, Second Edition phần 9 potx
... 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...
Electrical Power Systems Quality, Second Edition phần 10 pptx
... 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....
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