A high-voltage switchgear cable partial discharge monitoring simulation system
A technology for partial discharge monitoring and high-voltage switchgear, applied in the field of electric power, can solve problems such as in-depth research constraints, and achieve the effect of convenient operation and simple structure
Active Publication Date: 2020-06-19
河北省机电一体化中试基地有限公司
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Problems solved by technology
Although many domestic scholars have done a lot of research work on this method and achieved many research results, so far, there is no one that can perform multi-component gas generation, real-time online monitoring and indirect simulation in the laboratory. Judgment equipment, so that the in-depth study of the method has been greatly restricted
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[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0026] see figure 1 , the present invention mainly includes a nitrogen source 1, a discharge chamber 2 with a discharge device inside, a booster device composed of a transformer 4 and a console 5, a first reversing valve 6, an air pump 7, a filter screen 8, a second reversing Valve 9, gas absorption cell 10, fiber optic spectrometer and computer 16. Among them, the nitrogen source 1, the discharge chamber 2, the first reversing valve 6, the air pump 7, the filter screen 8, the second reversing valve 9 and the gas absorption cell 10 are connected together through a polytetrafluoroethylene insulating tube, and the booster It is connected with the discharge device through a copper wire, the fiber optic spectrometer is connected with the gas absorption cell 10 through an optical fiber 11 , and the fiber optic spectrometer is connected with a computer 16 through ...
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The present invention provides a high voltage switch cabinet cable partial discharge monitoring simulation system. The system comprises a boosting device, a discharging chamber, an air absorption pool, a suction pump, a nitrogen pump, a fiber spectrometer, a computer and two reversing valves. The port a of the first reversing valve is connected with the air inlet of the suction pump, the port b of the first reversing valve is connected with the nitrogen pump, the portion of the first reversing valve is connected with the port b of the second reversing valve through the discharging chamber and the air absorption pool, the port a of the second reversing valve is connected with the air outlet of the suction pump, and the port c of the second reversing valve is connected with the atmosphere; and the high-voltage output end of the boosting device is connected with the discharging device in the discharging chamber; the emission end and the receiving end of the fiber spectrometer are respectively connected with the light incoming port and the light outgoing port of the two ends of the air absorption pool, and the monitoring signal output end of the fiber spectrometer is connected with the computer. The high voltage switch cabinet cable partial discharge monitoring simulation system can perform the simulation test of partial discharge of high voltage switch cabinet cables and is suitable for generation and online monitoring experiment of a plurality of multicomponent gas in a laboratory and direct simulation and determination of the operation state of an electrification device so as to provide technical support for the research of the partial discharging monitoring method.
Description
technical field [0001] The invention relates to an experimental device capable of indirectly simulating and judging insulation faults of switch cabinets, belonging to the technical field of electric power. Background technique [0002] From an accident investigation in recent years, it can be seen that insulation faults account for 36.3% of all accidents in switchgear, indicating that the insulation accidents of switchgear (mainly metal-enclosed switchgear) are obviously prominent and should be highly valued. [0003] 10kV switchgear is an important part of the distribution network. Insulation failure is one of the main reasons for power failures or accidents in intelligent high-voltage switchgear and other electrical equipment, which seriously affects the safe operation of the power system. Discharge in the cable room is a relatively common phenomenon, especially in the high-voltage switchgear with a humid operating environment. The shed at the cable head is too close to or...
Claims
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IPC IPC(8): G01R31/12
CPCG01R31/1218
Inventor 姚鹏辉庞增拴靳晔王勇张雷李欣贾英新
Owner 河北省机电一体化中试基地有限公司