Intelligent power utilization line fault definition detector for low-voltage electric energy meter box

Abstract

The invention discloses an intelligent power utilization line fault definition detector for a low-voltage electric energy meter box. A detection method comprises the following steps of A, adopting a multi-loop voltage acquisition device ZH-40061 to perform patrol detection on multiple paths of definition switch voltage signals of the meter box, and transmitting the voltage signals to a DTU througha 485 communication device. According to a principle that a worker is responsible for a line administrated by the worker, unnecessary work can be reduced for electric power operation and maintenancepersonnel, the operation and maintenance cost is greatly reduced, and the complaints of residential users are reduced; fault information is accurately defined and clearly positioned, so that the electric power operation and maintenance personnel can reach a site to remove faults in the shortest time, and the operation and maintenance efficiency is improved; and the fault information can be timelynotified to the residential users, the maintenance time period can be timely notified to the residential users, and the power transmission time also can be timely notified to the residential users, sothat the residential users can make emergency preparation work of power failure in advance, and the potential safety hazards caused to the residential users due to the fact that the users do not knowwhen the power is restored suddenly after power failure is avoided.

Description

technical field [0001] The invention relates to the technical field of electric power detection, in particular to a low-voltage electric energy metering box circuit fault intelligent electric power limit detector. Background technique [0002] Electricity is an energy powered by electric energy. It was invented in the 1870s. The invention and application of electric power set off the second industrialization climax and became one of the three scientific and technological revolutions in the world since the eighteenth century in human history. It has changed people's lives. The large-scale power system that appeared in the 20th century is one of the most important achievements in the history of human engineering science. It is a power production and consumption system composed of power generation, power transmission, power transformation, power distribution and power consumption. , it converts the primary energy of nature into electricity through mechanical energy devices, and...

AI Technical Summary

Problems solved by technology

[0003] At present, the dividing point between the existing domestic power lines and residential lines is the outlet switch of the meter box. The switch and the line before the switch are power lines, which are operated and maintained by the power company. After the switch, they are residential lines. If any electrical failure causes the circuit protection switch to trip and lose power, residential users will call the power service hotline to complain. Because it is impossible to determine whether the fault is in the power line section or the residential line section, power line operation and maintenance personnel have to go to the site for inspection. Power line The reliability of power supply is much higher than that of residential lines, and more than 90% of line faults occur in the residential user line section, which causes huge waste of financial resources and manpower for power operation and maintenance, and there are multiple residential users in one meter box. The company urgently needs a fault intelligent detection detector, which can accurately determine whether the fault occurs in a power line section or a residential user line section. At present, there is no relevant detection equipment in China.

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