식물성 절연유를 사용한 변압기의 유동점에서의 절연특성”(Insulation Properties of Vegetable Oil-filled Transformer near the Pour Point)

초록

Electrical insulation is one of the most important parts in high voltage apparatus. The vegetable insulating oil had a higher water saturation, viscosity, pour point than conventional mineral oils.The viscosity of the insulating liquid is importantin the impregnation process. The breakdown voltages of insulation oils decreased uniformly with the decreased temperature. The lighting impulse test was conducted on virgin vegetable insulation oil-filled transformer. The impulse test results for the transformeer samples are broken winding at impulse full wave.