INTELLIGENT PROTECTION APPARATUS OF TRANSFORMER AND METHOD FOR PROTECTING THE SAME

摘要

The present invention relates to an apparatus and method for protecting an intelligent transformer, comprising: at least one transformer; at least one cooling fan; and a cooling fan drive circuit, the transformer protection device comprising: A temperature sensor; A current detecting module for detecting a current of the cooling fan and detecting a current of the cooling fan; A cooling fan status monitoring module for detecting whether the cooling fan operates normally through the cooling fan driving current and outputting cooling fan driving status information; And outputs a cooling fan drive control signal for determining the drive of the cooling fan when the temperature measurement value is equal to or higher than the cooling fan drive set value by comparing the temperature measurement value with the cooling fan drive condition setting value, A control module for outputting an abnormal state signal of the cooling fan; And a status display module for displaying a temperature state and a cooling fan driving state of the transformer under the control of the control module or displaying a warning sound or warning state according to an abnormal state signal of the cooling fan. Therefore, the present invention can drive the cooling fan through temperature sensing of the transformer, and can use the driving current flowing in the cooling fan to constantly check the abnormal state of the power system, the failure state of the cooling fan itself, It is possible to confirm the degree of the actual cooling effect by the cooling fan drive. The remote monitoring device can check the information related to the transformer and the cooling fan in real time, so that the safety of the transformer can be improved and the electric accident can be detected early .