A system to monitor, identify, and rectify cable termination joint hot spots in electric power distribution networks

摘要

A SYSTEM AND A PROCESS TO MONITOR, IDENTIFY, AND RECTIFY CABLE TERMINATION JOINT HOT SPOTS IN ELECTRIC POWER DISTRIBUTION NETWORKS The invention provides a system of detection of occurrence of overheating and the location of overheated joint in an EPDN. The detection of overheated joints is carried out using sensors which are provided near cable joints. These sensors are wired up as an input to the control unit. In the event of a joint overheating, changes in the input from the sensor to the control unit are identified. Control unit gives signal to the Modem to transmit preprogrammed messages to the assigned mobile numbers. The recipient of the messages, which may be located anywhere in the world, is thus notified about the panel which included the overheated joints. Depending upon mode of further action (automated or manual) this information will include either the exact joint location or be limited to specifying the affected panel location. In the auto mode the control unit gives command to automatically shut off the concerned circuit breaker to isolate the overheated joint from the EPDN. In the manual mode determination of the exact location of the affected joint is done through testing of each compartment of the panel, for example with the help of push button assisted mechanism. The affected circuit is switched off manually