How to know the minimum start-up voltage cooling fan?
Many people think that the starting voltage is written on the label voltage cooling fan, in fact, the minimum starting voltage than that voltage, rated voltage is much smaller, and I'll tell you about these two voltages it:
Starting voltage is suddenly energized when the cooling fan, the fan can make the minimum voltage to start.
Working voltage is stable after cooling fan powered normal operation voltage, ie rated voltage.
Starting voltage, general DC fan rated voltage of 12V, starting voltage is generally below 7V, because the system provides voltage may be unstable if the lower voltage start, and the rated voltage of 12V spacing is relatively large, on behalf of the DC fan operable voltage range more widely to ensure that when the voltage instability can be low pressure activating the fan.The size of the starting voltage value can be detected by means of a multimeter and other instruments to detect.Fan operating current is low, not only reduces power consumption, heat and the fan motor is reduced, increase the life of the fan.For oil fan, the lubricating oil may also slows volatilization, and therefore the lower the current, the higher the reliability of the fan.