Why Inverter Warm
Why Inverter Warm
When the inverter is working, some of the smaller electrical components will pass a high current, which causes the Joule heat effect (heat generated due to resistance heating). The temperature of the inverter manufacturer's heat sink is usually between 50-75°C. Temperatures over 60°C are normal, please do not touch. Our design team gives full consideration to heat dissipation during inverter design, using high performance heat sinks and efficient smart fans to promote heat dissipation. However, when the inverter is working, the heat generated inside the machine will be transferred to the top cover, resulting in a higher temperature of the top cover, so the front surface of the inverter may become warmer, while the rest of the body may become hotter, it is not recommended to touch the machine when it is working at full capacity. During the design process of the inverter, our team will carry out tests for ultra-high temperatures as well as cooling system failures to ensure that the inverter will not pose a fire hazard in the event of a cooling system failure.
The following graph shows the external environment and power derating curves for all current models of inverters in our company.
The graph below does not include power derating curves for future production units.
(T: ambient temperature P: percentage of power)
In some cases, the monitoring data will report the internal electronics temperature rather than the ambient external temperature. If the inverter overheats, it will begin to reduce power, and if the temperature continues to rise, the machine will sound an alarm that reads "TEMP OVER RANGE" and overheat protection. This indicates that the internal temperature of the machine has exceeded the safe temperature of the machine and continued operation will not keep the internal components at a safe temperature. The inverter will stop working to protect its internal components. Once the temperature returns to a temperature that allows normal operation, the inverter will resume generating power.
