Thermoelectric insulating medium fault simulation device

A technology of fault simulation device and insulating medium, which is applied in the direction of testing dielectric strength and test ship construction, and can solve problems such as high overheating temperature, limited temperature resistance of insulating materials, and inability to simulate.

Active Publication Date: 2019-05-24
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

There are two problems in this simulation method. One is that the insulating material used in the sealed box of the discharge simulation device has limited temperature resistance, which makes it impossible to simulate a high overheating temperature; the other is that the simulated fault does not match the actual operatio

Method used

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  • Thermoelectric insulating medium fault simulation device
  • Thermoelectric insulating medium fault simulation device
  • Thermoelectric insulating medium fault simulation device

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] figure 1 It is a schematic diagram of an embodiment of the insulation medium failure simulation device with thermal-electric composite action of the present invention. Such as figure 1 As shown, the insulation medium failure simulation device of the present invention includes a sealed container 2, a self-heating electrode module 1, a high-voltage electrode 4, a high-voltage wall-through bushing 3, a low-voltage wall-through bushing 17, a sample inlet 6, a sampling port 7, and a discharge detection Device 5, temperature controller 8, heating power supply 9, plate-through flange 10, electric heating rod 11, pressure detector 12, micro-water detector 13, discharge signal sensor 14, first temperature sensor 15, and second temperature sensor 16.

[0028]The sealed container 2 is filled with an insulating medium through the injection port 6...

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Abstract

A thermoelectric insulating medium fault simulation device comprises a sealed container, a self-heating electrode module, a high-voltage electrode, a high-voltage wall bushing, a low-voltage wall bushing, a sample inlet, a sampling port, a discharge detection device, a temperature controller, a heating power source, a plate penetrating flange, an electric heating rod, a pressure detector, a microwater detector, a discharge signal sensor, a first temperature sensor and a second temperature sensor. In operation, simulation of three types of thermoelectric complex faults can be realized throughthe temperature controller and includes simulation of thermoelectric complex faults with different thermoelectric positions, simulation of thermoelectric complex faults with same thermoelectric positions and simulation of thermoelectric complex faults under high-temperature and discharge complex action.

Description

technical field [0001] The invention relates to an insulating medium fault simulation device. Background technique [0002] SF6 gas is widely used in electrical equipment such as circuit breakers, transformers, bushings, SF6 gas insulated switchgear (GIS) due to its excellent insulation and arc extinguishing properties. At present, my country's 220kV and above ultra-high voltage power grids and UHV power grids have been mandated to use all SF6 switchgear, and its holdings are more than 33,000 compartments, ranking first in the world. In addition, equipment such as SF6 gas insulated pipeline bus (Gas Insulated Line, GIL) is also the preferred transmission method for key places such as nuclear power, hydropower and cross-river transmission pipelines. [0003] SF6 gas is chemically stable, but it will dissociate under discharge or overheating conditions; when there are no other impurities, the dissociated SF6 will quickly recombine and reduce to SF6 gas. However, in actual us...

Claims

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Application Information

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IPC IPC(8): G01R31/16
Inventor 李康张国强
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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