Simulation test system for retractable mountain fire smoke guide channel under high-voltage transmission lines
A high-voltage transmission line and simulation test system technology, which is applied in the direction of testing dielectric strength, can solve problems such as high risk, high research cost, and inability to study transmission line mountain fire flashover, and achieve the effect of reducing research costs
Active Publication Date: 2017-11-28
STATE GRID CORP OF CHINA +3
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Problems solved by technology
However, there are still a large number of unknown areas in the mode of action and mechanism of fire-induced flashover on transmission lines.
[0003] At present, there is no fire and smoke simulation test system specially designed for the study of flashover of transmission lines due to mountain fires. It is impossible to conduct corresponding research on flashover of transmission lines in a safe laboratory environment, and it can only be carried out in mountainous areas. Carrying out corresponding research is risky and costly
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[0016] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0017] Such as Figure 1~5 The shown simulation test system for the retractable mountain fire smoke guide channel under the high-voltage transmission line includes a steel plate discharge electrode 1 (the steel plate discharge electrode 1 is used to place fuel 2, and the smoke is generated by igniting the mountain fire through the electrode, simulating the smoke generated by the transmission line. mountain fire generated by electrode discharge), gas analyzer 12, data acquisition and processor 13, controller 18, thermocouple bracket 17, integrated bracket 15, flue 16 fixed on the integrated bracket 15, arranged at the bottom of flue 16 The conical smoke collecting hood 3 connected with the flue 16, the transmission line simulation double split conductor 14 (220kV) above the top of the flue 16 (the transmission line simulation double split conduct...
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The invention discloses a scalable forest fire smoke guide channel simulation test system under a high-voltage transmission line, comprising a steel plate discharge electrode, a gas analyzer, a data acquiring and processing device, a controller, a thermocouple support, a comprehensive support, a flue fixed to the comprehensive support, a conical smoke collecting hood, a transmission line simulation double-split conductor, a temperature measuring thermocouple beam hung to the center inside the flue, variable-speed fans fixed to the inner wall of the flue, frequency converters for controlling the speeds of the variable-speed fans, and gas sampling needles embedded into the flue. The control signal input ends of the frequency converters are connected with the control signal output end of the controller. The signal output ends of the gas sampling needles are connected with the signal input end of the gas analyzer. The signal output end of the temperature measuring thermocouple beam is connected with the signal input end of the data acquiring and processing device. By adopting the system, technicians are enabled to safely research forest fire flashover of transmission lines in a laboratory environment, and the research cost is lowered significantly.
Description
technical field [0001] The invention relates to the technical field of simulation test devices for transmission lines, in particular to a simulation test system for a retractable mountain fire smoke guide channel under a high-voltage transmission line. Background technique [0002] In recent years, there have been more and more outages and outages of transmission lines caused by wildfires across the country, and even the collapse of the power grid has seriously threatened the safety and reliability of the power system. However, there are still a large number of unknown areas in the mode of action and mechanism of flashover induced by wildfires on transmission lines. [0003] At present, there is no fire and smoke simulation test system specially designed for the study of flashover of transmission lines due to mountain fires. It is impossible to conduct corresponding research on flashover of transmission lines in a safe laboratory environment, and it can only be carried out i...
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IPC IPC(8): G01R31/12
Inventor 龚浩张雪峰廖承郑雷罗浩韩俊玉穆广祺马维青赵晓龙
Owner STATE GRID CORP OF CHINA