document number: 13060 revision 28-mar-02 www.vishay.com 24 phao.../.f vishay esta medium-frequency capacitors, self-cooled, small capacities for completing fractional outputs design all-? lm winding in insulated aluminum casing with non-magnetic lid; ip00, indoor; operating temperature - 10c/+ 65c (= maximum temperature at surface of casing); porcelain terminals with bolts m10; the maximum permissible values u n max., p v max., and i max. must be observed. medium frequency capacitors version a i max = 80a d1 x h = 60 x 109mm m 12 d 1 d-138/m 10 version b i max = 80a h = 180mm a 19 16 h 43 m 12 116 d-138/m 10 a 19 16 h 43 72
www.vishay.com 25 phao.../.f vishay esta document number: 13060 revision 28-mar-02 u n max. c n r s p v max. version type (v) (f) (ohm) (w) phao . . . 2200 0.22 1 x 10 -3 3 a .. 2.2/0.22f 1800 0.45 1 x 10 -3 3 a .. 1.8/0.45f 1500 1.00 1 x 10 -3 3 a .. 1.5/1.00f 1300 2.00 1 x 10 -3 3 a .. 1.3/2.00f 900 4.00 1 x 10 -3 3 a .. 900/4.00f 2200 1.00 5 x 10 -4 9 b .. 2.2/1.00f 2200 1.50 5 x 10 -4 9 b .. 2.2/1.50f 2200 2.00 5 x 10 -4 9 b .. 2.2/2.00f 2200 3.00 5 x 10 -4 9 b .. 2.2/3.00f 1800 4.00 5 x 10 -4 9 b .. 1.8/4.00f formula for calculating pv(w) and i(a) : q = 2 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 1.5/1f(= version a) on u = 1000v and f = 4000hz ? q = 2 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 2.2/1f. medium frequency capacitors small capacitors self-cooled
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