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　　1. Regularly remove the dust in the power cabinet

　　In particular, the outside of the thyristor core shall be wiped clean with alcohol. The frequency conversion equipment in operation generally has a machine room, but the actual working environment is not ideal. In the smelting and forging process, the dust is very large and the vibration is strong. In the diathermal quenching process, the equipment factory is close to the pickling and phosphating equipment, and there are more corrosive gases, which will damage the components of the relevant equipment of the medium frequency electric furnace and reduce the insulation strength of the equipment. When there is a lot of dust, the component surface discharge often occurs. Therefore, it is necessary to pay attention to frequent cleaning to avoid problems;

　　2. Regularly check whether the binding of water pipe joint is firm

　　When tap water well water is used as the cooling water source of medium frequency electric furnace equipment, scale is easy to accumulate and affect the cooling effect. In case of aging and crack of plastic water pipe, the equipment shall be replaced in time. When running in summer, using tap water well cooling is often prone to condensation. The use of circulating water system should be considered. When condensation is severe, the operation should be stopped immediately;

　　3. Regularly replace or clean the key components of relevant equipment of medium frequency electric furnace

　　4. Regularly overhaul the equipment

　　The bolts of various parts of the equipment and the contacts of fastening contactors and relays shall be checked regularly. In case of looseness or poor contact, they shall be repaired and replaced in time. They cannot be used reluctantly to avoid major accidents.

　　5. Regularly check whether the wiring of the load is excellent and whether the insulation is firm.

　　The oxide scale accumulated in the diathermal induction ring shall be cleaned in time; If the heat insulation furnace lining has cracks, it shall be replaced in time; After the furnace lining is updated, the smelting furnace shall be checked carefully; The loads of insulated frequency conversion equipment are set at the work site, and the faults are relatively high, which are often ignored. Therefore, strengthening the protection of the load and avoiding the faults involving frequency conversion power supply is an important part to ensure the normal operation of the equipment.

　　Article from:http://zhenshen168.cn