Πειραματική διερεύνηση της διηλεκτρικής συμπεριφοράς...
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: .
2016
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2016
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2016
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- -
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:
.
...
.
U50,
t50, ,
.
-.
-.
- ,
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.
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2016
,
2015,
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,
..., .
,
,
,
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1: ............................................................................................. 1
1.1 ............................................................................................ 4
1.2 ........................................................................................ 4
1.2.1 - ........................................................................................... 4
1.2.2 - .......................................................................................... 5
2: .................................................. 6
2.1 ........................................................................... 6
2.2 Marx .......................................................................................... 7
2.3 .................................................................................. 12
2.4 ............................................................................................................... 13
2.5 ................................................................................................................ 13
2.6 .................................................................................................... 14
3: ........................................................................ 16
3.1 ............................................................................................................. 16
3.2 ................................................................. 16
3.3 ............................................................................................ 17
3.4 - ............................................................................ 18
3.5 - (U-t) .................................................................................... 18
4: - (R-R) ............ 19
4.1 52 cm ................... 19
4.2 27 cm ................... 21
4.3 - (U-t) - ........................................ 23
4.4
- .................................................................................................................... 26
4.5 - (U-t) -
................................................................................................................................. 28
4.6 -
.......................................................................................................................... 29
4.7 - -
(U-t) ..................................................................................................................................... 31
5: - (R-P) ........... 33
5.1 - ............................ 33
5.2 - (U-t) - ................................... 34
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2016
5.3
- ................................................................................................................... 35
5.4 - (U-t) -
................................................................................................................................ 36
5.5 -
.......................................................................................................................... 36
5.6 - -
(U-t) ..................................................................................................................................... 38
6: ........................................... 41
6.1 - ............................................................................. 41
6.2 ............................................................................... 44
6.3 (Gap factor) ............................................................................. 49
7: ................................................................................... 53
8: .................................................................. 55
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2015
1
1:
1.1
IEC 60060-1:2010 [1], (impulse)
,
.
,
(lightning impulse voltages, LI)
(switching impulse voltages, SI).
20 s
20 s [2].
UP, 1 2. ,
,
,
,
. ,
.
1=1.67*,
30 % 90 % ( , . 1.1).
, ( 1, . 1.1)
0.3*1 30%
( , . 1.1) 2
50 % .
,
.
5 % .
:
(kV), 1/2(s)
(Standard LI) 1.2/50 s .
-
2016
2
( )
30 %
, 20 % 3 % [2].
1.1: (LI), [2]
Up, P 2 (. 1.2).
,
50% .
90 %,
90 % .
:
(kV), /2(s)
(Standard SI) 250/2500 s.
( )
20 %
, 60 % 3 % [2].
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2016
3
1.2: (SI), [2]
.
:
() = ( )
. < , ,
.
,
.
1.3: , Up: , Tcr: , a2>>a1 [2]
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2016
4
1.2
. ,
,
,
[4].
,
.
,
.
-, -, - -.
,
- -.
1.2.1 -
-
, -. -
,
1.4.
,
..,
.
[4]. 1.4: - [4]
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2016
5
1.2.2 -
-
, -
.
,
. -
,
(gap factor). 1.5
-,
[4].
1.5: -, [4]
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2016
6
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2016
7
2:
2.1
...
.
,
.
,
,
. 6.5 m , 12 m
7 m . 10
.
2.1: ... [2]
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2016
8
(6 m),
, 3.25 m.
HVAC 650 kV (rms), HVDC 900 kV,
LI 1 MV SI 1.4 MV.
10-
1 MV, 7kJ Ferranti,
.
,
,
.
.
.
.
2.2 Marx [2]
Marx
.
1.3/53 s
850 kV SI 885 kV LI.
Marx
100 kV. Marx
.
n , CSi,
V0.
CB. CSi
RLi, RDi REi,
.
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2016
9
2.2: Marx
220V / 50 kVA. ,
Cockcroft-Walton, V0 .
.
V0 Cockcroft-Walton RL1
CS1 . ,
CS RL
V0,
.
RE (
).
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2016
10
2.3: Marx [3]
CS
.
.
,
( ) ,
(
) .
. ,
,
.
Trigatron.
.
( ).
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2016
11
.
.
.
2.4: Marx .. [3]
Marx Trigatron
. Marx
.
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2016
12
Marx
: Trigatron
, G1, V0 CS1
V0 CS2
CS2 2*V0 (
CS1 o CS2 CS2
RL ). ,
G2 V0
CS2 2V0
V0 CS3,
3V0.
10*V0
.
= 10 0 , n
= 0.928 = 0.944
[5].
CB
RD
RDf. CB
.
CB
RD RDf
RE,
2.5: CB
RDf [3]
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2016
13
2.3
,
.
, [5]:
Marx,
DC
,
,
AC
Marx,
Trigatron,
2.6: [3]
,
.
,
.
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2016
14
2.4
, TDS3064B
Tektronix ( 600MHz, 5 GS/s). ,
, CB
Marx (200pF) 0.296F [5].
2.7: Tektronix TDS3064B
2.5
. , :
- -.
1.3/53 s, .
, , 15 cm 60 cm.
-,
. 52 cm , 27 cm.
:
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2016
15
1.1
- (cm)
52 cm 27 cm
15 15 30 30
20 20 35 35
25 25 45 45
30 30 50 50
35 35 55 -
40 40 60 -
- (cm)
20 20
40 30
60 40
2.6
.
-
-.
-,
Marx,
RDf, 52 cm.
. 52
27 cm, .
,
2
.
.
-,
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2016
16
.
.
.
71.5 cm.
2.8 -
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2016
17
3:
3.1
.
U50
50 % [2],
50 % 50 % .
tb,
[2].
Ub
tb. tb
Ub.
3.2
, o
, ,
.
.
.
,
.
P (mmHg) .
P
( ) T (oC) :
=
760
293
273 +
.
.
. Marx
.
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2016
18
Trigatron,
, ,
.
.
Excel.
, , 60 s
,
.
.
. , , ,
.
(, ...) .
3.3
IEC 60060-1:2010 [1]. , n
Ui, mi .
di i- ,
() = /.
- (U-t) , 20
20 (
,
).
10 ,
.
, ,
.
.
.
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2016
19
3.4
.
,
[2].
- ,
,
.
U50
, z, U50-U16, U16
16%.
U50 z
[2].
3.5 - (U-t)
,
,
. ,
,
. - (U-t)
.
[6].
3.1 - (U-t) [6]
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2016
20
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2016
21
4: - (R-R)
4.1 52 cm
,
,
, - .
4.1: R-R, 15 cm, LI(+) 4.2: R-R, 15 cm, LI(-)
4.3: R-R, 20 cm, LI(+) 4.4: R-R, 20 cm, LI(-)
4.5: R-R, 25 cm, LI(+) 4.6: R-R, 25 cm, LI(-)
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2016
22
4.7: R-R, 30 cm, LI(+) 4.8: R-R, 30 cm, LI(-)
4.9: R-R, 35 cm, LI(+) 4.10: R-R, 35 cm, LI(-)
4.11: R-R, 40 cm LI(+) 4.12: R-R, 40 cm, LI(-)
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23
4.2 27 cm
4.13: R-R, 30 cm, LI(+) 4.14: R-R, 30 cm, LI(-)
4.15: R-R, 35 cm, LI(+) 4.16: R-R, 35 cm, LI(-)
4.17: R-R, 45 cm, LI(+) 4.18: R-R, 45 cm, LI(-)
4.19: R-R, 50 cm, LI(+) 4.20: R-R, 50 cm, LI(-)
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24
4.21: R-R, 55 cm, LI(+) 4.22: R-R, 60 cm, LI(+)
4.1 4.2 ,
U50 (%)
-
.
4.1: - 52 cm
P (mmHg) T (oC) H (gm-3) U50 (kV) (%)
15 cm 765 14.7 9.730 1.025 126.8 4.71
771 14.7 9.415 1.033 134.9 1.55
20 cm 767 14.2 10.31 1.029 155.4 3.33
760 14.2 10.91 1.020 182.7 2.86
25 cm 775 15.5 10.90 1.035 198.2 6.79
771 16.0 10.65 1.029 209.2 6.27
30 cm 763 14.7 11.56 1.022 219.2 4.51
767 15.5 11.52 1.025 257.0 4.56
35 cm 765 15.7 12.31 1.021 237.3 4.88
754 16.0 12.50 1.005 295.4 4.78
40 cm 757 15.5 10.92 1.011 260.7 3.77
757 16.2 11.10 1.009 337.2 3.44
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25
4.2: - 27 cm
P (mmHg) T (oC) H (gm-3) U50 (kV) (%)
30 cm 768 17.5 12.67 1.019 218.7 6.12
764 18.0 13.04 1.012 250.0 5.25
35 cm 768 17.5 12.67 1.019 236.4 5.37
764 18.0 13.04 1.012 293.6 4.95
45 cm 763 18.0 13.37 1.011 274.0 3.65
760 15.7 10.15 1.015 366.5 4.03
50 cm 763 15.2 10.09 1.020 287.8 3.29
760 15.5 10.90 1.015 523.2 3.98
55 cm 756 15.5 11.21 1.010 317.6 3.32
60 cm 756 15.5 11.21 1.010 338.6 1.85
4.3 - (U-t) -
,
- (U-t),
, -
. 15, 20, 25, 30, 35, 40
cm 52 cm, 45 50 cm
27 cm.
4.23: R-R, 15 cm, LI(+) 4.24: R-R, 15 cm, LI(-)
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2016
26
4.25: R-R, 20 cm, LI(+) 4.26: R-R, 20 cm, LI(-)
4.27: R-R, 25 cm, LI(+) 4.28: R-R, 25 cm, LI(-)
4.29: R-R, 30 cm, LI(+) 4.30: R-R, 30 cm, LI(-)
4.31: R-R, 35 cm, LI(+) 4.32: R-R, 35 cm, LI(-)
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2016
27
4.33: R-R, 40 cm, LI(+) 4.34: R-R, 40 cm, LI(-)
4.35: R-R, 45 cm, LI(+) 4.36: R-R, 45 cm, LI(-)
4.37: R-R, 50 cm, LI(+) 4.38: R-R, 50 cm, LI(-)
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2016
28
4.4
-
-,
.
U50
,
.
4.39: R-R, 15 cm
52 cm 4.40: R-R, 20 cm
52 cm
4.41: R-R, 25 cm
52 cm 4.42: R-R, 40 cm
52 cm
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2016
29
4.43: R-R, 30 cm
52 cm 4.44: R-R, 30 cm
27 cm
4.45: R-R, 35 cm
52 cm 4.46: R-R, 35 cm
27 cm
4.47: R-R, 45 cm
27 cm 4.48: R-R, 50 cm
27 cm
,
4.43 4.46
. , 30 35 cm,
.
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2016
30
4.5 - (U-t)
-
,
(U-t)
.
- (U-t).
,
,
,
(U-t) .
4.49: R-R, 15 cm
52 cm 4.50: R-R, 20 cm
52 cm
4.51: R-R, 25 cm
52 cm 4.52: R-R, 30 cm
52 cm
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31
4.53: R-R, 35 cm
52 cm 4.54: R-R, 40 cm
52 cm
4.55: R-R, 45 cm
27 cm 4.56: R-R, 50 cm
27 cm
4.6 -
- ,
,
.
, ,
, U50.
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2016
32
4.57: -, LI(+)
4.58: -, LI(-)
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2016
33
4.7 - -
(U-t)
, - (U-t)
- ,
, ,
- (U-t). 15, 20, 25,
30, 35, 40 cm 52 cm, 45 50 cm
27 cm.
4.59: (U-t) -, LI(+)
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2016
34
4.60: (U-t) -, LI(-)
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2016
35
5: -
5.1 - (R-P)
,
,
, -
.
5.1: R-P, 20 cm, LI(+) 5.2: R-P, 20 cm, LI(-)
5.3: R-P, 40 cm, LI(+) 5.4: R-P, 40 cm, LI(-)
5.5: R-P, 60 cm, LI(+) 5.6: R-P, 30 cm, LI(-)
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36
5.1 ,
U50 (%)
-
.
5.1: -
P (mmHg) T (oC) H (gm-3) U50 (kV) (%)
20 cm 765 22.7 17.50 0.994 132.1 4.96
763 22.2 16.96 0.996 258.5 3.79
40 cm 765 21.5 15.83 1.002 217.0 4.55
757 16.2 15.27 1.009 462.6 3.00
60 cm 765 22.0 16.85 1.000 305.2 2.54
30 cm 763 22.2 16.96 0.996 258.5 3.79
5.2 - (U-t) -
,
- (U-t),
, -
.
5.7: R-P, 20 cm, LI(+) 5.8: R-P, 20 cm, LI(-)
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2016
37
5.9: R-P, 40 cm, LI(+) 5.10: R-P, 40 cm, LI(-)
5.11: R-P, 60 cm, LI(+) 5.12: R-P, 30 cm, LI(-)
5.3
-
U50
,
.
-, - U50
U50 .
5.13: R-P, 20 cm 5.14: R-P,40 cm
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38
5.4 - (U-t)
-
,
(U-t)
.
- (U-t). ,
-,
,
(U-t) .
5.15: R-P,20 cm 5.16: R-P,40 cm
5.5 -
- ,
,
.
, ,
,
U50 .
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2016
39
5.17: -, LI(+)
5.18: -, LI(-)
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2016
40
5.6 - -
(U-t)
, - (U-t)
- ,
, ,
- (U-t).
5.19: - (U-t) -, LI(+)
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2016
41
5.20: - (U-t) -, LI(-)
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2016
42
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2016
43
6:
6.1 -
,
- 52 cm, -
27 cm -.
,
U50, 50 %.
, Uth
Ust.
2,5 % ,
97,5 % [2].
-
U50, Uth Ust .
.
,
.
, ,
.
- -
27 cm.
6.1.1 - - (R-R)
52 cm
6.1: - ,
R-R, LI(+) 6.2: - ,
R-R,LI(-)
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2016
44
6.3: - ,U50, , R-R
6.1.2 - -
27 cm
6.4: - ,
R-R, LI(+) 6.5: - ,
R-R,LI(-)
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2016
45
6.6: - ,U50, , R-R
6.1.3 - -
6.7: - ,
R-P, LI(+) 6.8: - ,
R-P,LI(-)
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2016
46
6.9: - ,U50, , R-P
6.2
,
. ,
.
,
, m, :
=50
U50 kV, 50 % l
m. [4]
,
.
. ,
- - 27
cm - 52 cm .
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2016
47
6.2.1 - (R-R)
52 cm
6.10: , R-R
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2016
48
6.2.2 - (R-R)
27 cm
6.11: , R-R
-
2016
49
6.2.3 - (R-P)
6.12: , R-P
-
2016
50
6.2.4
- (R-R)
6.13: , R-R, 27 & 52 cm, LI(+)
6.14: , R-R, 27 & 52 cm, LI(-)
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2016
51
6.3 (Gap factor)
To -
. , -
(k). U50
, U50
-, .
: =50
50,
.
U50
-.
, 50 %
, k,
U50,R-P,
- [4].
- - ,
27 52
cm, .
,
.
-
2016
52
6.15: R-R, 27 cm, LI (+)
6.16: R-R, 27 cm,LI (-)
-
2016
53
6.17: R-R, 52 cm, LI (+)
6.18: R-R, 52 cm,LI (-)
-
2016
54
-
2016
55
7:
.
,
.
.
,
- -
,
. ,
, -
(U-t) -
.
-,
.
.
-
(U-t). ,
,
,
, U50
. -
, U-t
U-t . -
, ,
. ,
, U-t
U-t.
-.
,
,
U50. -,
U-t
.
-
2016
56
, - ,
- - 27 cm
- 52 cm.
,
. ,
,
- 52 cm
.
,
-
.
, ,
,
.
-,
, m , ,
.
,
.
, -
-
.
, -
-,
. ,
. , -
-
U50 -
.
-
2016
57
- . ,
.
. , ,
.
.
( 15 cm )
.
-
2016
58
-
2016
59
8:
[1] IEC 60060-1: "High-voltage test techniques, Part1: General definitions and
requirements", 2010.
[2] . . , "
", 1 2, 2008.
[3] , , "
", , , ,
2015
[4] , " -
- 1m", ,
, , 2014.
[5] . , . , "
(UHV) ", ,
, , 2012.
[6] Recommendations for high-voltage testing: EEI-NEMA subcommittee report,"
Electrical Engineering, vol.59, no.10, pp.598-602, Oct. 1940.
-
2016
60
1: 2: 3: 4: - (R-R) 5: - 6: 7: 8: