Inverter device environmental requirements 1: operating temperature;
The inverter is a high-power electronic component, which is very easy to be affected by the working temperature, and the product is generally required to be 0-55 °C, but in order to ensure that the work is [safe] [complete] [can be] [reliable], the use should be considered to leave room for control, and the control is below 40 °C. In the control box, the inverter should generally be installed in the upper part of the box, and strictly abide by the device requirements in the product manual, and it is not allowed to put the heating element or the component that is easy to heat up close to the bottom of the inverter.
Inverter device environmental requirements 2: ambient temperature;
When the temperature is too high and the temperature changes greatly, the inverter is prone to condensation, and its insulation function will be greatly reduced, and it may even cause a short circuit. If necessary, add desiccant and heater to the box. In the water treatment room, water vapor is generally heavier, and this problem will be more prominent if the temperature changes significantly.
Inverter device environmental requirements three: corrosive gas;
If the concentration of corrosive gas is high in the application environment, it will not corrode the leads and printed circuit boards of the components, and it will also accelerate the aging of plastic equipment and reduce the insulation function.
Inverter device environmental requirements four: oscillation and impact;
When a control cabinet equipped with a frequency converter is subjected to mechanical oscillations and shocks, it can cause poor electrical contact. Huai'an Thermal Power presents such a problem. At this time, in addition to improving the mechanical strength of the control cabinet and keeping away from the oscillation source and impact source, the anti-seismic rubber pad should also be used to fix the electromagnetic switches outside and inside the control cabinet and other components that produce oscillation. After the device has been running for a while, it should be inspected and protected.
Inverter device environmental requirement five: electromagnetic wave disturbance;
Due to the rectification and frequency conversion in the work of the inverter, a lot of disturbing electromagnetic waves are generated around, and these high-frequency electromagnetic waves have a certain disturbance to the nearby appearance and instruments. Therefore, the internal and external surfaces and electronic [systems] of the cabinet should be made of metal shells to shield the disturbance of the inverter from the external appearance. In addition, the connection between the electrical components, instruments and the surface should be shielded control cables, and the shielding layer should be grounded. If the electromagnetic disturbance is not handled well, the entire [system] [system] will often be unable to work, resulting in the failure or damage of the control unit.
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