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Phao.../.µF
Vishay ESTA
Medium Frequency Capacitors
MEDIUM-FREQUENCY CAPACITORS, SELF-COOLED, SMALL
CAPACITIES FOR COMPLETING FRACTIONAL OUTPUTS
DESIGN
• All-fi lm winding in insulated aluminum casing with
non-magnetic lid;
• IP00, indoor;
• Operating temperature - 10°C/+ 65°C (= maximum
temperature at surface of casing);
• Porcelain terminals with bolts M10;
• The maximum permissible values U
and I
must be observed.
max.
max., PV max.,
N
D-138/M 10
A
D-138/M 10
19
16 H 43
M 12
A
43
19
H
16
M 12
72
Version A
I
= 80A
max
D1 x H = 60 x 109mm
www.vishay.com
24
D
1
116
Version B
I
= 80A
max
H = 180mm
Document Number: 13060
Revision 28-Mar-02
Phao.../.µF
Medium Frequency Capacitors
Vishay ESTA
SMALL CAPACITORS SELF-COOLED
UN MAX. C
N
(V) (µF) (Ohm) (W) Phao . . .
2200 0.22 1 x 10
1800 0.45 1 x 10
1500 1.00 1 x 10
1300 2.00 1 x 10
900 4.00 1 x 10
2200 1.00 5 x 10
2200 1.50 5 x 10
2200 2.00 5 x 10
2200 3.00 5 x 10
1800 4.00 5 x 10
Formula for calculating Pv(W) and I(A) :
2
Q = 2 π x f x U
x C x 10–9 (kVAr)
I = Q/U (A)
R
S
-3
3 A .. 2.2/0.22µF
-3
3 A .. 1.8/0.45µF
-3
3 A .. 1.5/1.00µF
-3
3 A .. 1.3/2.00µF
-3
3 A .. 900/4.00µF
-4
9 B .. 2.2/1.00µF
-4
9 B .. 2.2/1.50µF
-4
9 B .. 2.2/2.00µF
-4
9 B .. 2.2/3.00µF
-4
9 B .. 1.8/4.00µF
PV MAX.
VERSION TYPE
Pv = I2 x RS + Q x 10
- 4
(W)
EXAMPLE
Type Phao 1.5/1µF(= version A) on U = 1000V and
f = 4000Hz ?
2
- 6
x 10
Q = 2 π x 4000 x 1000
(Var) = 25130 Var
I = 25130/1000 = 25.13A
= 25.132 x 1 x 10
P
V
- 3
+ 25130 x 10
- 4
= 3.145W
= > version A not suitable, take version B type Phao 2.2/1µF.
Document Number: 13060
Revision 28-Mar-02
www.vishay.com
25
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