4results about How to "Avoid insulation damage" patented technology

Power cable polishing equipment comprises a polishing mechanism, a driving mechanism and a sensing control module. The polishing mechanism comprises a hinged tensioning structure and a polishing belt arranged on the hinged tensioning structure in a sleeving mode. The driving mechanism is connected to one end of the other side of the hinged tensioning structure and drives the polishing belt on the hinged tensioning structure to rotate. The sensing control module is installed on the side, close to the grinding belt, of the driving mechanism. The sensing control module is used for measuring the surface temperature of the polishing belt and controlling the rotating speed of the driving mechanism according to the measured surface temperature, so that the polishing frequency of the polishing belt is controlled; the sensing control module measures the temperature of the polishing mechanism or the power cable and controls the rotating frequency of the driving mechanism so as to adjust the polishing frequency of the polishing mechanism, polishing of the power cable is optimized, the power cable polishing equipment can be controlled based on the temperature, and damage to an insulating material caused by overheating is avoided.

This utility model discloses an integrated arc extinguishing and arc suppression device and a circuit breaker having the same, including an arc extinguishing chamber unit and an arc suppression chamber unit. The arc suppression chamber unit is integrally connected to the arc extinguishing chamber unit through a set of mounting side plates, and an extension baffle is formed by the set of mounting side plates extending towards the circuit breaker wiring port. The mounting side plates and the extension baffles are integrally formed to constitute the side walls of the arc extinguishing chamber unit and the arc suppression chamber unit, respectively. In this integrated structure, the ends of the extension baffles directly cover the inner walls on both sides of the wiring port, forming a continuous arc extinguishing cavity and an arc suppression cavity, completely eliminating the gaps caused by assembly, structurally blocking the path of arc escape, and improving the overall arc extinguishing and arc suppression efficiency. The integrated arc extinguishing chamber and arc suppression chamber structure significantly compresses redundant space, improves the internal layout compactness without increasing the overall volume of the circuit breaker, and significantly improves the cabinet space utilization rate.

The invention discloses a high-voltage aerial cable supporting framework design method considering cable bending rigidity, and belongs to the field of high-voltage aerial cable supporting framework design. A high-voltage aerial cable supporting framework and a clamp at a cable bending position are designed based on the minimum allowable bending radius of a cable; an initial cable-high-voltage aerial cable supporting framework design scheme is formed; finite element simulation modeling analysis is carried out for a cable-high-voltage aerial cable supporting framework design scheme, and bending moment distribution at the cable bending position is solved; checking the bending safety of the cable, and if the safety is met, outputting a cable-high-voltage aerial cable supporting framework design scheme; and if the safety is not met, adjusting a high-voltage aerial cable supporting framework or / and a clamp at the bending part of the cable, and carrying out finite element simulation modeling analysis again. According to the method, it can be ensured that the cable cannot be excessively bent under various working conditions, terrible accidents caused by the too small bending radius are effectively avoided, and the operation safety of the cable body is remarkably improved.