145
K75-74
____________________________________________________________________________________
PAPER FILM CAPACITORS WITH ELECTRODES
.
75-54.
:
.
Designed to operate in AC current circuit
and in pulse mode.
Can be used instead of 75-54.
Design:
cylindrical housing made of
polymeric materials. Axial terminals.
" "
Design " "
" "
Design "b"
2
. (2 holes)
M6*
*
L
3*
20*
D
L
12
max
12
max
12
1
L
25
max
25
max
M6-
6g
D
D
" "
Design " "
0,01...4,7
Rated capacitance
0.01...4.7 F
5,0...40
Rated voltage
5.0...40 kV
+10; +20%
Capacitance tolerance
+10; +20%
f = 1
< 0,006
Dissipation factor at f = 1 kHz
< 0.006
r < 0,22
> 3000
Insulation
resistance
at r < 0.22 F
> 3000 MOhm
r > 0,22
1000
.
Time
constant
at r > 0.22 F
1000 MOhm.F
-60...+55
o
C
Operating
temperature
range
-60...+55
o
C
5000
Operating time
5000 hours
:
75-74 5
2,2
20%
Ordering example:
Capacitor K75-74b 5 kV 2.2 F 20%
146
D, mm
L, mm
Ur, kV
Cr, F
Rated
value
Limit
discrepancy
Rated
value
Limit
discrepancy
Mass, g
max
Design
0.10
24
1.65
60
0.22
34
120
0.47
45
1.95
90
2.7
220
a (a)
1.0
53
430
2.2
75
2.3
930
5.0
4.7
105
2.7
140
3.15
1900
(b), ( )
0.047
34
120
0.10
45
1.95
220
0.22
67
90
2.7
460
a (a)
0.47
67
2.3
760
10
1.0
105
2.7
1750
0.022
36
200
0.047
50
1.95
410
0.10
71
140
3.15
830
0.22
67
2.3
1600
20
0.47
100
2.7
3300
0.01
36
410
0.022
48
1.95
760
0.047
67
2.3
1600
40
0.10
100
2.7
270
4.05
3200
(b)
Um
f
Permissible amplitude of AC sinusoidal component of ripple voltage Um as a function of frequency f
Um / Ur, %
f, Hz
100
10
1
100
1000
1
2
3
4
5
6
50
1
10
10000
1)
5,0
(0,1
)
2)
5
(0,22
); 10
(0,047
); 20
(0,022
);
3)
5
(0,47
); 10
(0,1
);
20
(0,047
); 40
(0,022
);
4)
5
(1,0
); 10
(0,22
);
20
(0,1
); 40
(0,047
);
5)
5
(2,2
); 10
(0,47
);
20
(0,22
); 40
(0,1
);
6)
5
(4,7
); 10
(1,0
); 20
(0,47
)
1)
5.0 kV (0.1 F)
2)
5 kV (0.22 F); 10 kV (0.047 F); 20 kV (0.022 F);
3)
5 kV (0.47 F); 10 kV (0.1 F);
20 kV (0.047 F); 40 kV (0.022 F);
4)
5 kV (1.0 F); 10 kV (0.22 F);
20 kV (0.1 F); 40 kV (0.047 F);
5)
5 kV (2.2 F); 10 kV (0.47 F);
20 kV (0.22 F); 40 kV (0.1 F);
6)
5 kV (4.7 F); 10 kV (1.0 F); 20 kV (0.47 F)
147
U
p
,
.
Peak-to-peak pulse voltage U
p
must not exceed the values defined from the Figure below.
U
p
F
p
Permissible amplitude of peak-to-peak pulse voltage U
p
as a function of pulse repetition rate F
p
100
80
70
60
50
40
30
25
20
15
10
%
10
-1
1
10
10
2
10
3
10
4
Hz
F
p
U
p
U
r
U
p
I
p
F
p
,
:
U
p
I
p
F
p
P,
P
,
;
-
,
,
;
-
,
,
:
- 0,8
;
- 1,0 -
(
)
20%;
-
,
, -
;
I
p
,
;
F
p
-
.
Permissible combinations of U
p
I
p
F
p
must not exceed the values calculated from the following
formula:
U
p
I
p
F
p
P,
where
P - a parameter specifying loss power tolerance at a natural convective heat transfer along the
lateral surface that is given in the table.
- a coefficient that allows for the capacitor discharge time. It depends on the duration of the
discharge current pulse and is determined from the Figure below
- a coefficient that allows for the discharge mode of the capacitor and is equal to:
- 0.8 for the aperiodic and oscillatory modes with one half-wave of the current;
- 1.0 - for the pulse mode with the discharge depths (voltage derating ratio) up to 20%;
- values measured from the figure for oscillatory damping mode of discharge
I
p
discharge current amplitude of the capacitor
F
p
- pulse repetition rate
148
Cr, F
Ur, kV
P 10
-6
, VA/c
Cr, F
Ur, kV
P 10
-6
, VA/c
0.10
0.22
0.47
1.0
2.2
4.7
5
472
642
830
1293
1406
2193
0.022
0.047
0.10
0.22
0.47
20
971
1274
1642
2873
3615
0.047
0.10
0.22
0.47
1
10
642
830
1113
1592
2123
0.010
0.022
0.047
0.1
40
1871
2291
2873
3573
p
(
0,5 I
p
)
as a function of the discharge current pulse duration
p
(at a level of 0.5 I
p
)
20
10
1
0.1
0.1
1
10
100
p
s
149
U
rev
/U
p
as a function of U
rev
/U
p
for the oscillatory damped mode of discharge
4
1
2
3
0
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
U
rev
U
p
U
rev
;
here U
rev
amplitude of a reverse pulse voltage
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