- 01
- Dec
Detailed introduction of the invalid reason of SMC insulation board
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.
(१) वायूचे तुकडे होणे
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) द्रव डायलेक्ट्रिकचे ब्रेकडाउन
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) पृष्ठभागाच्या बाजूने ब्रेकडाउन
एसएमसी इन्सुलेशन बोर्डच्या वापरामध्ये, घन माध्यमाच्या आजूबाजूला अनेकदा वायू किंवा द्रव माध्यम असतात आणि दोन डायलेक्ट्रिक्सच्या इंटरफेसच्या बाजूने आणि कमी विद्युत शक्ती असलेल्या बाजूला अनेकदा ब्रेकडाउन होते, ज्याला क्रिपिंग ब्रेकडाउन म्हणतात. पृष्ठभागावरील ब्रेकडाउन व्होल्टेज सिंगल डायलेक्ट्रिकच्या तुलनेत कमी आहे. कॅपेसिटर इलेक्ट्रोडच्या काठावर, मोटर वायर (रॉड) च्या शेवटी इन्सुलेटर रेंगाळणारा डिस्चार्ज होण्यास प्रवण असतो, ज्यामुळे इन्सुलेशनचे मोठे नुकसान होते आणि बिघाड होतो.
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.