Abstract: The objective of this project is to detect short circuit faults in underground cables using Advance Microcontrollers. The underground cable system is a common practice followed in many urban areas. While a fault occurs for some reason, at that time the repairing process related to that particular cable is difficult due to not knowing the exact type of fault. The proposed system is to find the fault in the underground cables. Underground cables has been broadly applied in electricity distribution networks due to the advantages of underground connection, regarding extra secure than overhead traces in horrific weather, much less liable to damage by storms or lightning, much less expensive for shorter distance, environment-pleasant. But, the risks of underground cables need to also be stated, including eight to fifteen instances which shows extra luxurious than equal overhead traces, less energy switching capability, more at risk of permanent damage following a flash-over, and tough to locate fault. Faults in underground cables can be commonly categorized as two classes: incipient faults and everlasting faults. Commonly, incipient faults in electricity cables are gradually resulted from the getting old technique, wherein the localized deterioration in insulations exists. Electric overstress in conjunction with mechanical deficiency, adverse environmental circumstance and chemical pollutants, can reason the irreparable and irreversible damages in insulations. The associated strategies posted in journals and proceedings are reviewed, summarized and compared inside the subsequent subsections.

Keywords: PIC16F877, LCD, Underground cable.