Transformers are usually used in the following three kinds of insulating paper:

1, Miki insulation paper, also known as kraft paper, yellow, thickness: 0.13mm ~ 0.5mm.

2, NOMEX insulation paper, also known as Connaught US paper, light yellow, thickness: 0.05mm ~ 0.76mm.

3, NMN insulation paper, thickness: 0.1mm ~ 0.5mm