How to maintain the inverter in the electronic universal testing machine

Laboratory operators must be familiar with the basic working principle and functional characteristics of the inverter in the electronic universal testing machine, and have common knowledge of electrician operation. Before routine maintenance of the inverter, it must be ensured that the total power supply of the equipment is completely cut off; and after the inverter shows complete disappearance for 3-30 minutes (according to the power of the inverter). Should pay attention to check the grid voltage, improve the surrounding environment of the inverter, motor and circuit, regularly remove the dust inside the inverter, and greatly reduce the failure rate of the inverter by strengthening the equipment management.

Due to the production characteristics of some companies, the concentration of corrosive gases in each electrical mcc chamber is too large, causing many electrical equipment to be damaged by corrosion (including inverters).

In order to solve the above problems, the inverter in the electronic universal testing machine can install an air conditioning system and use positive pressure fresh air to improve the environmental conditions. In order to reduce the corrosion of corrosive gases on the components on the circuit board, the inverter manufacturer may also require the circuit board to carry out anti-corrosion processing, and also spray preservatives after maintenance, thereby effectively reducing the failure rate and improving the use efficiency.

At the same time of maintenance, the inverter should be carefully checked, and the power should be sent periodically. The motor should be operated at a low frequency of 2hz for about 10 minutes to ensure that the inverter works normally.

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