Detailed introduction of the invalid reason of SMC insulation board

There are many reasons for the failure of the SMC insulation board, and one of the more critical factors is caused by aging. If it is kneaded by other objects at high temperature, the insulator may be short-circuited, which will cause the insulation board to fail. Let’s give us a detailed introduction to the reasons for the failure.

(1) Хийн задрал

When the electric field strength of the SMC insulation board exceeds a certain value, it will cause gap breakdown. If the gap is too small, the electric field strength will increase and cause gas breakdown. Commonly, capacitors break down due to excessively high applied voltage, electric sparks caused by exposed wires, and arcs when the switch is closed. These conditions indicate that they no longer have insulation properties.

(2) Шингэн диэлектрикийн задрал

The electric strength of liquid dielectric is much higher than that of gas under standard state. If the oil contains impurities such as moisture, its electrical strength will be severely reduced, and it is prone to breakdown, leading to failure of the insulating material.

(3) Гадаргуугийн дагуух эвдрэл

SMC тусгаарлагч хавтанг ашиглахад ихэвчлэн хатуу орчны эргэн тойронд хий эсвэл шингэн орчин байдаг бөгөөд эвдрэл нь ихэвчлэн хоёр диэлектрикийн интерфэйсийн дагуу болон цахилгааны хүч багатай талд тохиолддог бөгөөд үүнийг мөлхөгч эвдрэл гэж нэрлэдэг. Гадаргуу дээрх эвдрэлийн хүчдэл нь нэг диэлектрикээс бага байна. Конденсаторын электродын ирмэг дээр хөдөлгүүрийн утас (саваа) -ын төгсгөлд байрлах тусгаарлагч нь мөлхөгч урсацад өртөмтгий байдаг бөгөөд энэ нь тусгаарлагчид ихээхэн хохирол учруулж, эвдрэлд хүргэдэг.

The above is an introduction to the reasons for the failure of the SMC insulation board. In the face of different breakdown methods, the results have led to the failure of the insulation board and can no longer exert its due performance. Therefore, we must pay attention to the electrical The control of the equipment prevents unnecessary damage during operation and affects the insulation effect.