"Tiny Cooling Fan" manually disadvantages are: low level of automation, increased workload attendant; cooling capacity can not be continuously smooth adjustment changes with temperature, cooling fan and put into several groups prone to the impact of current pollution of the grid; several groups of "Tiny Cooling Fan"at the same time full load operation, noisy; remote cooling system and so can not be monitored. Automatic mode While increasing the level of automation reduces the workload on duty, but the start of the electromagnetic switch is controlled by the temperature of the cooling system caused frequent start-stop relay, switch failure rate is high, low reliability, are rarely used transformer load changes. "Tiny Cooling Fan" to design a new cooling control system, stable operation of the actual site more than three years, to achieve energy saving, automatic control, remote monitoring and reduce noise expected results.