GSM / GPRS system to detect and locate high impedance faults in medium voltage distribution networks in areas with high resistivity

摘要

System for detecting and locating broken or open conductor faults associated with a medium voltage distribution network (200) positioned to distribute electrical energy to areas with high resistivity, the system comprising: a voltage distribution network (200) configured to distribute electrical energy to areas that have high resistivity, the voltage distribution network (200) comprising a plurality of high voltage conductive lines (204), each having a common node, and a plurality of low voltage conductive lines (208) ; a plurality of distribution transformers (206), each of the plurality of distribution transformers (206) comprising an upper portion connected to one or more of the plurality of high voltage conductive lines (204) and configured to reduce one or more first voltage (s) received by one or more of the plurality of high voltage conductive lines (204) at one or more second voltage (s) that is / are less than the one or more first voltage (s), each of the plurality of distribution transformers (206) also comprising a lower portion connected to one or more of the plurality of low voltage conductive lines (208) to distribute the one or more second voltage (s) to these from one or more of the plurality of respective distribution transformers (206); and a plurality of open conductor devices (210), each of the plurality of open conductor devices (210) being connected to a low voltage side of a respective distribution transformer and to a side end of a respective low conductive line voltage (208) that is connected to the lower portion of the respective distribution transformer, each configured of the plurality of open conductor devices (210) to transmit a plurality of voltage readings to a master station (214) through a global mobile communications system (GSM) communication network (201) and comprising: a power supply configured to supply power to the plurality of open conductor devices (210), the power source comprising a voltage transformer and a circuit rectifier, a battery charging unit configured to charge a direct current (DC) battery as f Reserve power supply, a GSM module (406) configured to facilitate communication with the GSM communication network (201), a voltage detection module configured to detect voltages of the plurality of low voltage conductive lines (208), and one or more microcontroller board (s) connected to the GSM communication network interface and configured (s) to store a plurality of voltage loads of the plurality of low voltage conductive lines (208) detected by the voltage detection module and for transmitting the plurality of voltage loads using GSM communication, the system also comprising one or more server (s) positioned away from the plurality of open conductor devices (210) and near a substation (212) to define the master station (214), the master station (214) being configured to determine a location of one or more missing (s) conductor broken or open in the re voltage distribution d (200), comprising the master station (214): one or more processor (s); one or more subscriber identification module (s) configured to facilitate communication with the GSM communication network (201); one or more means (s) readable by non-transient computer (s) encoded (s) with one or more computer program (s) operational (s) with the one or more processor (s) to determine the location of the one or more missing or broken conductor (s) in the voltage distribution network (200), the computer program comprising the instructions for: creating a plurality of voltage distribution topology query tables for the network of voltage distribution (200), the plurality of reference tables comprising a topology of each of the plurality of high voltage conductive lines (204), each of the plurality of low voltage conductive lines (208), and each route to a common connection point through the plurality of high voltage conductive lines (204), the plurality of open conductor devices (210), and the plurality of low voltage conductive lines (208), determine, in response upon receipt of a plur First voltage loads from the plurality of low voltage conductive lines (208) for a predetermined period of time from the plurality of open conductor devices (210), a baseline voltage for each of the plurality of low voltage conductive lines (208), determine the reception of a plurality of second voltage loads that are at least a predetermined difference lower than the baseline voltage for the plurality of low voltage conductive lines (208), being transmitted the plurality of second voltage loads from at least two of the plurality of open conductor devices (210) through the GSM communication network (201) to thereby define a plurality of conductor devices with missing fault, identify, in response to the plurality of voltage distribution topology query tables, each route shared by each of the plurality of d Conductive devices with missing fault and the common connection point based on the plurality of voltage distribution topology query tables, and identify, in response to the identification of each shared route, two of the plurality of missing conductor devices detected that further posteriors are positioned relative to the common connection point, being located near a location of a broken or open conductor fault with respect to one or more of the plurality of high voltage conductive lines (204) connected between the two of the plurality of driver devices with fault detected.