Transformers are supplied at the rated supply voltage and loaded with an impedance
producing the rated output, at the rated output voltage and, for a.c. current, at the rated
power factor. The value of the output current is measured when steady state is established.
Then the supply voltage is increased by 10 % and the output current is adjusted to the same
value measured before. The output current is not adjusted for independent transformer. After
this no change is made in the circuit. The test is repeated under no-load condition if this is a
more unfavourable situation。3 \% q' {1 h( _1 K/ L
& E- m7 `8 D- ], n9 \, V
对于带外壳线性变压器,做这个测试,产品不是在过载吗?怎么不按其它标准带额定负载呢?; M( V' L1 B# W