Intelligent grounding device for high-voltage cable, and using method thereof

Abstract

The invention discloses an intelligent grounding device for a high-voltage cable. The device comprises a box body, a door plate is hinged to one side of the box body, a brake assembly used for brakingthe door plate is arranged in the door plate, a connecting bin is arranged in the box body, three cable access pipes are arranged at the bottom of the box body at equal intervals, and the tops of thecable access pipes extend into the connecting bin. The device is simple in structure, and a lower linkage block can be driven by a driving motor to move upwards so as to open a carbon dioxide fire extinguisher to extinguish fire in the box body, so the fire hazard can be timely and effectively extinguished; and in addition, the baffles on the two sides can be pushed outwards or closed through a stepping motor, a triangular block and a sliding rod to ventilate the internal space of the box body, so the heat dissipation efficiency is improved, the heat dissipation effect is good, heat dissipation is comprehensive, and insects and mice can be prevented from entering the box body to damage circuits and other elements in the box body when ventilation is not conducted.

Description

technical field [0001] The invention relates to the technical field of electric power equipment, in particular to an intelligent grounding device for high-voltage cables and a usage method. Background technique [0002] Large-scale transmission lines are transported by cables. The cable grounding box is an important part of the transmission cable system in the power industry. It is widely used in projects such as electric power, railways, urban construction, water conservancy, and rail transit. The grounding box is used for The place where the grounding wire is placed plays the role of protecting the grounding wire. It is specifically divided into a direct grounding box, a protective grounding box, a three-phase cross-connected grounding box, and a three-phase six-wire grounding box. [0003] At present, when a short-circuit occurs in a cable in a cross-interconnection section, high-voltage current will be generated, and a certain degree of explosion and fire will occur afte...

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Problems solved by technology

[0003] At present, when a short-circuit occurs in a cable in a cross-interconnection section, high-voltage current will be generated, and a certain degree of explosion and fire will occur after a long time, and the risk factor is relatively high. However, in the case of a short-circuit, the existing cable grounding box first It is necessary to turn off the power supply, and then carry out fire extinguishing and finishing work, but it takes a certain period of time for the staff to discover the accident after the short circuit occurs. This period of time will cause huge damage. Therefore, the existing cable grounding box cannot extinguish the fire in time, thereby reducing the danger. It seriously affects the normal power consumption of users, and it may also cause personal harm to the staff in the later maintenance. Moreover, in the rainy and snowy weather of the traditional grounding box, water vapor can easily enter the box and cause corrosion and short circuit of the components, making the internal The line is damaged. In addition, the vent hole of the traditional grounding box is open, and rats and insects can easily enter through the vent hole, causing damage to components or lines, causing unnecessary losses and increasing maintenance costs in the later period.

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