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60335-2-65中16.101章的标准上提到“Twice the working voltage is induced in the secondary winding of the transformer by applying a sinusoidal voltage having a frequency higher than rated frequency to the primary terminals.
3 A$ c) s) w% W3 p# H: v0 {; CThe duration of the test is
- H' {6 p/ i" y* V `: i- [- h5 N– 60 s, for frequencies up to twice the rated frequency, or
8 i; ^; c" h# v: e– 120 × rated frequency/test frequency s, with a minimum of 15 s, for higher frequencies
7 |; i" |6 f, ^6 ~+ A% gA maximum of one-third of the test voltage is applied and is then rapidly increased without creating transients. At the end of the test, the voltage is decreased in a similar manner to approximately one-third of its full value before switching off.", P4 W5 L6 w( e
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有没有人实际操作过该测试?按照标准要求,是否在变压器初级施加一高于额定频率的正弦波电压,使次级产生两倍的工作电压。问题是初级施加高于额定频率的正弦波电压,次级是否可以产生两倍的工作电压?) |8 a! S5 p- N4 U
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