求翻译：变压器的连接组别标号相同；是什么意思？

Transformer connection group the same label;

Connect the transformer label groups;

The transformer copper loss refers to the loss which at the beginning of the secondary wire DC resistance creates, therefore only needs the transformer on to add on the nominal current then, the concrete operation is the secondary coil direct pipe nipple, adds the voltage on a side, amounts to until

Transformer connection group label the same;

Transformer connection group label the same;