High-voltage cable outdoor terminal silicone oil degradation and combustion test platform and degradation and combustion test method

Abstract

The invention provides a high-voltage cable outdoor terminal silicone oil degradation and combustion test platform and a degradation and combustion test method. The high-voltage cable outdoor terminalsilicone oil degradation and combustion test platform comprises a gas source regulation and control system, a reactor, an exhaust system and a data analysis system, wherein the reactor comprises a reaction cavity and a degradation device; silicone oil is placed in the reaction cavity, and the degradation device degrades the silicone oil in the reaction cavity; the reactor comprises a gas inlet and a gas outlet; the gas source regulation and control system introduces gas into the reaction cavity through the gas inlet, and the reaction cavity exhausts gas to the exhaust system through the gas outlet; the data analysis system is in communication connection with the gas source regulation and control system and the exhaust system. The purposes of simulating the degradation and combustion process of the terminal silicone oil under the environmental conditions of electricity, heat, dampness, oxygen and the like are achieved, the degradation development rule of the cable silicone oil and combustion characteristic data is grasped, a detection strategy is correspondingly formulated, and the occurrence of sudden accidents caused by the degradation problem of the silicone oil is avoided.

Description

technical field [0001] The invention relates to the technical field of disaster prevention and reduction for power transmission and transformation equipment, in particular to a test platform for degradation and combustion of silicone oil at an outdoor terminal of a high-voltage cable and a test method for degradation and combustion. Background technique [0002] With the continuous improvement of the degree of urban power grid cable, the requirements for the reliability of cable power supply are also continuously improved. As a key connection device, the cable terminal is the weak link in the safe operation of the cable line. Silicone oil is the main insulating medium for high-voltage cable terminals, and its performance plays a decisive role in the overall safe operation of the cable. During the operation of the line, affected by external factors such as oxygen, humidity, high temperature, ultraviolet rays, strong electric field, impurities, etc., the mechanical and electr...

AI Technical Summary

Problems solved by technology

During the operation of the line, affected by external factors such as oxygen, humidity, high temperature, ultraviolet rays, strong electric field, impurities, etc., the mechanical and electrical properties of the silicone oil will gradually age, resulting in a greatly reduced terminal insulation performance. It can cause breakdown fault of high voltage cable terminal

[0003] After the cable terminal is installed, it needs to be sealed, so there is no research tool for the degradation process of silicone oil in the environment of electricity, heat and humidity

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