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Miniature GIS electromagnetic disturbance simulation test device and method

A technology of electromagnetic disturbance and simulation test, applied in the field of miniature GIS electromagnetic disturbance simulation test device, can solve the problems of difficulty in obtaining structural parameters of GIS equipment and large gap in simulation results, and achieves reduction of test error, low test voltage level, and reduced test voltage. The effect of small experimental error

Pending Publication Date: 2021-10-01
STATE GRID SHAANXI ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the current research method, because the simulation uses the distributed capacitance and inductance parameters of GIS equipment equivalent to the centralized electronic component parameters; and it is difficult to obtain the structural parameters of the GIS equipment in the operating substation, the layout, structure, and length of the GIS equipment in each substation and other reasons, resulting in a large gap between the simulation results and the actual measurement, it is difficult to conduct in-depth research

Method used

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  • Miniature GIS electromagnetic disturbance simulation test device and method
  • Miniature GIS electromagnetic disturbance simulation test device and method
  • Miniature GIS electromagnetic disturbance simulation test device and method

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Embodiment 1

[0066] see figure 1 , a miniature GIS electromagnetic disturbance simulation test device according to the embodiment of the present invention, comprising: a straight-through pipe 100, a measuring tee 200, a switch tee 300, a metal bracket 400, a grounding plate 500 (which may be a grounding copper sheet), and a measuring device 600 (can be an oscilloscope or a data acquisition card), a signal source 700 (can be an excitation power supply or a nanosecond pulse source).

[0067] see figure 2 , the metal outer tube 101 of the straight-through pipe of the present embodiment is an aluminum alloy tube with an outer diameter of Φ45 and an inner diameter of Φ38. Flanges are processed at both ends, and the length of each straight-through pipe is 1850 mm. The conductive rod 102 in the metal outer tube 101 adopts an outer Oxygen-free copper with a diameter of Φ12, with guide plugs processed at both ends, which can be plugged with the conductive rod in the switch tee 300 or the measurin...

Embodiment 2

[0072] According to the test plan, in the configuration of a miniature GIS electromagnetic disturbance simulation test device in the embodiment of the present invention, 45 straight-through tubes, 41 measuring tees, and 5 switch tees are used. A straight pipe is 1850mm long, a measuring tee and a switch tee are 150mm long, and a straight pipe and a tee are 2000mm long. 40 wires are combined into a main circuit with a total length of 80.15 meters, and 5 wires are combined into a branch road with a length of 10.075 meters. The branch road is 18 meters away from the input end of the main circuit. The main circuit is provided with a switch tee every 16 meters, with a total of 4 locations. A switch tee is installed 2 meters away from the main circuit for the branch circuit, and a measuring tee is installed for the rest. Choose 300mm wide. An oxygen-free copper strip with a thickness of 0.2mm is used as the grounding system. The bracket is fixed on the ground through the copper ...

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Abstract

The invention discloses a miniature GIS electromagnetic disturbance simulation test device and method. The device comprises a simulation channel, a grounding plate, a measuring device, a signal source and a plurality of metal supports. The simulation channel is fixedly arranged on the grounding plate through a plurality of metal supports. The simulation channel comprises a plurality of straight-through pipes, a plurality of measurement tee joints and a plurality of switch tee joints; the plurality of straight-through pipes are connected in sequence, and the joints of the plurality of straight-through pipes are connected by measuring tee joints except the preset positions, so that the conducting rods in the connected straight-through pipes are electrically connected; the preset positions are connected through a switch tee joint, and the on and off of the electric connection of the conducting rods in the connected straight-through pipes are realized through the on and off of the switch tee joint; the signal source is connected with a preset measurement tee joint and is used for inputting an electric signal to the GIS electromagnetic disturbance simulation test device; and the measuring device is connected with a preset measuring tee joint and used for collecting test data of the GIS electromagnetic disturbance simulation test device.

Description

technical field [0001] The invention belongs to the technical field of high voltage measurement and electromagnetic compatibility, in particular to a miniature GIS electromagnetic disturbance simulation test device and method. Background technique [0002] In the current power system: on the one hand, due to the increasingly high voltage level, capacity and power network density, the electromagnetic disturbance problem is becoming more and more serious; on the other hand, more and more electronic and computer Control, measurement, communication and other equipment are used on the high-voltage side of the power system, which has poor tolerance to electromagnetic disturbance and is easily affected by the outside world. [0003] At present, in many newly-built substations, it is usually adopted to lower the protection and control equipment to the switch yard, and provide AC and DC power to the secondary equipment through shielded cables. This method increases space utilization ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/327
CPCG01R31/327
Inventor 成林卢江平刘健吴经锋石团结吴健郭安祥
Owner STATE GRID SHAANXI ELECTRIC POWER RES INST