High-voltage inverter how to repair and maintain? - Database & Sql Blog Articles

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1. Environmental monitoring: The lighting of the frequency room is normal; the frequency conversion room is well ventilated, there should be no excessive dust, acid, salt, corrosive and explosive gas in the surrounding air; the ambient temperature of the inverter room is 0~40 °C.
2. Check the operation of the cooling system. Place a standard thickness of A4 paper on the filter screen of the cabinet door. The paper should be attached to the air inlet window. If it cannot be adsorbed, the filter needs to be replaced. At the same time, it should be cleaned daily to keep the floor clean.
3. Check if the voltage of the main circuit and control circuit is normal.
4. Check whether the touch screen display is clear, whether there are missing characters; whether there is abnormal sound or abnormal vibration, whether the bolt is loose, whether there is deformation damage, whether there is discoloration caused by overheating, whether there is adhesion dust or dirt.
5. Check whether the bolt is loose or falling off, whether the machine or insulator is deformed, cracked, damaged or discolored due to overheating, and there is no adhesion or dust.
6. Whether the conductor is discolored due to overheating, whether it is skewed, whether the wire sheath is damaged or discolored, and there is no damage. The phase shifting transformer has an abnormal tweet or strange smell. Control circuit screws, connectors are loose, whether there is strange smell, discoloration, cracks, damage, deformation or significant rust. Whether the cooling system has abnormal sound or abnormal vibration, whether the bolts are loose, whether there is discoloration due to overheating, whether the gap between the inlet and outlet of the radiator is blocked or foreign matter is attached.
7. Check the tightness of all electrical connections.
8. Thoroughly clean the inside and outside of the cabinet with a brush or a rag to ensure that the equipment is dust-free and heat-dissipated.
9. Repair the rusted or exposed area with a repair paint.
10. Regularly replace (repair) defective parts.