求翻译：控制变压器（C为C型铁芯结构）是什么意思？

Control transformer (C to C-type core structure)

For controlling transformers (C C-core structure)

Power factor big and small and circuit load nature related, like resistance load and so on incandescent lamp bulb, resistance furnace power factors are 1, generally has the inductive load electric circuit power factor all to be smaller than 1.The power factor is an electrical power system important

Control transformer (c for c-type iron-core structure)

Control transformer (c for c-type iron-core structure)