2014年9月24日星期三

Capacitance recognition

 The capacity of the capacitor unit is: method (F),micro method (uf),leather (pf).Usually we don't use the unit,because it is too big.The conversion relationship between thepower electric motors various units as follows: 1 f = 1000000 uf uf = 1000000 pf in use,also often see units: nf.Uf = 1000 nf 1 nf = 1000 pf Several methods of capacitor has a capacity of identity: a,direct identification: above electrolytic capacitor,47 uf capacity,capacitance pressure 25 v.Second,the unit using the nf: polyester capacitor as shown above,nominal 4 n7,namely 4.7 nf,converted into pf is 4700 pf.There are,formagnetic generator example: 10 n,0.01 uf namely; 33 n,namely 0.033 uf.Behind the 63 refers to the capacitor voltage 63 v.Three,mathematical notation: above ceramic dielectric capacitors,values,104 capacity: 10 x10000pf = 0.1 uf.If the values 473,is the 47 x1000pf = 0.047 uf.(at the back of the 4,3,say how many power of 10).Such as: 332 = 33 x100pf = 3300 pf. The use of capacitance,should be in thewww.facebook.com/guohong.trading specified work under pressure.Now many of the quality of products,because use the pressure caused by insufficient capacitance fault common capacitance (burst).

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