1. Plan a special inverter room: When the power of the inverter used is large or the number is large, a special inverter room can be planned. The doors, windows and cable holes in the room should be sealed to prevent dust from entering; It is necessary to plan air filtration equipment and circulation channels to adhere to the normal circulation of indoor air; Make sure the indoor temperature is below 40°C. Unified management, which is conducive to viewing and maintenance.
2. Installed in a cabinet with fans and filtration equipment: when the user does not have the conditions to set up a special inverter room, the dust cabinet can be considered. Fans and filters should be planned to ensure sufficient air flow in the cabinet. The user should check the fan on time to eradicate the dust on the filter screen and avoid the temperature exceeding the specified value due to the lack of ventilation.
3. The selection of dustproof inverters can be stronger: when selecting the specifications and models of inverters on the market, in addition to the quotation and function, the adaptability to the environment should also be considered. Some inverters do not have a cooling fan, relying on its shell to naturally dissipate heat in the air, compared with the air-cooled inverter, although the volume is larger, but the sealing function of the device is good, not affected by dust, the maintenance is simple, the failure rate is low, the operation life is long, and it is particularly suitable for the use of corrosive industrial gases and dust.
4. Reduce the no-load operation time of the inverter: In the industrial production process, the general inverter is generally often connected to the power supply, and the start/stop and rotation direction of the motor are controlled by the "forward/reverse/common end" control terminal (or the button on the control panel) of the inverter. Some equipment may be open and stopped, and the fan is still working when the inverter is no-loaded, which will absorb dust, which is unnecessary. During the production operation, the no-load time of the inverter should be minimized to reduce the impact of dust on the inverter.
5. Establish the principle of punctual dust removal: the user should determine the time distance of punctual dust removal according to the influence of dust on the inverter. Dust collection can be done with an electric vacuum cleaner or compressed air. In the future, it is also necessary to pay attention to check the tumbling condition of the inverter fan and check whether the electrical connection points are loose and heated.
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But the conditions are:
At the top of the list, great success ...
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