C&H Technology Phao...-.µF - Manual (Page 3)

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25
Phao.../.µF
Vishay ESTA
Document Number: 13060
Revision 28-Mar-02
U
N
MAX. C
N
R
S
P
V
MAX. VERSION TYPE
(V) (µF) (Ohm) (W) Phao . . .
2200 0.22 1 x 10 -3 3 A .. 2.2/0.22µF
1800 0.45 1 x 10 -3 3 A .. 1.8/0.45µF
1500 1.00 1 x 10 -3 3 A .. 1.5/1.00µF
1300 2.00 1 x 10 -3 3 A .. 1.3/2.00µF
900 4.00 1 x 10 -3 3 A .. 900/4.00µF
2200 1.00 5 x 10 -4 9 B .. 2.2/1.00µF
2200 1.50 5 x 10 -4 9 B .. 2.2/1.50µF
2200 2.00 5 x 10 -4 9 B .. 2.2/2.00µF
2200 3.00 5 x 10 -4 9 B .. 2.2/3.00µF
1800 4.00 5 x 10 -4 9 B .. 1.8/4.00µF
Formula for calculating Pv(W) and I(A) :
Q = 2 π x f x U 2 x C x 10 –9 (kVAr)
I = Q/U (A)
Pv = I 2 x R
S
+ Q x 10 - 4 (W)
EXAMPLE
Type Phao 1.5/1µF(= version A) on U = 1000V and
f = 4000Hz ?
Q = 2 π x 4000 x 1000 2 x 10 - 6 (Var) = 25130 Var
I = 25130/1000 = 25.13A
P
V
= 25.13 2 x 1 x 10 - 3 + 25130 x 10 - 4 = 3.145W
= > version A not suitable, take version B type Phao 2.2/1µF.
Medium Frequency Capacitors
SMALL CAPACITORS SELF-COOLED