标题: IEC 60335-1温升测试时阻抗随时间变化曲线如何绘制 [打印本页] 作者: wongxx008 时间: 2017-3-27 10:39 标题: IEC 60335-1温升测试时阻抗随时间变化曲线如何绘制 1 j- m+ Y) c3 @/ q; i
温升计算公式： $ d R8 ?1 ?! d' ^4 c" @, U6 S; U" v1 L
+ [: x; @: L9 \& S! O[attach]112148[/attach] + h, I0 N8 M+ c c! }4 uNOTE 4 It is recommended that the resistance of windings at the end of the test be determined by taking / p$ c9 _, P# R- C" G) iresistance measurements as soon as possible after switching off and then at short intervals so that a curve of( ?: y! e/ K& V9 l
resistance against time can be plotted for ascertaining the resistance at the instant of switching off. , k6 Y/ | u6 }! a, F; y6 f* B: u. R6 d0 W- _* P* g
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请教大神：按照NOTE 4推荐的方法如何绘制电阻随时间变化曲线图？能否举个例子。; W" c! N! J* z6 S/ w2 M' D" q