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ELINKER ELECTRIC control cabinet for discussion on how to reduce heat output
Published：2013-05-10 09:59:12 Views：
When the inverter when installed in a control cabinet, to consider the question of heating value of frequency converter.
According to the increased heat in the Cabinet, to appropriately increase the size of the Cabinet. Therefore, to control the size of the Cabinet to minimize, it was necessary to make the heat generated in the Cabinet to minimize.
When the inverter is installed, radiator parts on the inverter control cabinet outside of 70% of heat release will cause the inverter to control the outside of the Cabinet. Due to the large capacity frequency converter has a lot of heat, so for large capacity frequency converter is more efficient.
Can also be separated by a main body isolation plate and heat sink, radiator cooling effect to the transducer body. This effect is also very good.
Inverter in thermal design is based on the vertical, sideways heat sink will deteriorate!
On the cooling fan
Power Inverter of slightly larger, with a cooling fan. At the same time, also recommended that the control cabinet cooling fan outlet installed. Air inlet and filter to prevent dust from entering the control cabinet. Attention fan on the controller and converter are, not who substitutes whom. Other questions about the heat sink
1 where, at an altitude higher than 1000m, because of reduced air density, so you should increase the Cabinet's cooling air flow to improve cooling effect. Inverter should consider capacity-reducing in theory, 1000m-5%. But due to the fact that since the design capacity of the inverter and bigger cooling capacity than the actual use, it also depends on the specific application. For example in 1500m place, but cyclical loading elevator, unnecessary capacity-reducing.
2, switching frequency: IGBT,IGBT-inverter heat mainly from fever has set in on and off instantly. Switching frequencies high calorific value of natural frequency converter is getting bigger. Some manufacturers claim can reduce the switching frequency expansion, nor is it.