| 摘要 |
PURPOSE:To monitor safe and suitable operation by calculating by considering the temperature rise of a transformer in the operating state of the transformer to grasp the state of a load connected with various types of transformers. CONSTITUTION:A calculator 7 calculates the capacity of a load 2 connected with a transformer 1 upon receiving of inputs from a transformer capacity setter 5, a current transformer setter 6 and an input unit 4. To further manage the temperature, it inputs the measured values of the temperatures of a transformer installing position and the transformer, calculates the temperature rise of the transformer and presumes the lifetime. Thus, the operating state of the transformer such as the process of the temperature rise of the transformer can be understood to reduce the lifetime presuming operation cost due to a safe monitor and overload operation and to set a suitable transformer capacity. |
