Automatic folding and unfolding type ultrahigh-voltage alternating-current withstand voltage test platform

Abstract

The invention relates to an automatic folding and unfolding type ultrahigh-voltage alternating-current withstand voltage test platform. The platform comprises a platform body, supporting legs, an electric power control unit, an electric reactor and a driving unit, wherein a turnover connecting seat is arranged on the platform body; a device seat is rotatably connected to the turnover connecting seat through a pivot; the test platform further comprises a cushion block, an elastic buffer piece and a supporting seat, and a contact formed by the elastic buffer piece and the device seat is locatedabove a contact formed by the cushion block and the device seat. According to the invention, on the basis of safety, reliability, simple structure, no need of a bracket or a crane and no need of stopping the operation of a transformer substation, the stability of the vertical state of the electric reactor is ensured, the problem of impact on the electric reactor caused by overturning and unfoldingis solved, the damage rate of the electric reactor is reduced, the probability of rollover accidents is reduced, the implementation is convenient, the time required for automatic unfolding and folding is short, and the electric reactor can be transported on a vehicle.

Description

technical field [0001] The invention relates to the field of electric power test equipment, in particular to an automatically retractable ultra-high voltage AC withstand voltage test platform. Background technique [0002] As we all know, the commissioning, handover test, and operation and maintenance related tests of UHV (AC 1000kV, DC ±800, ±1100kV) power transmission and transformation projects before they are put into operation are all carried out at the UHV substation site. [0003] However, the output voltage of the test equipment is usually above 1000kV, and its composition is complex and bulky. Therefore, the complete set of electric test equipment is required to realize an integrated mobile platform (usually 6-10 meters in length and more than 10 tons in weight) to facilitate transportation and Field use. However, when the platform is transported to the site by vehicle, it needs to be unloaded and used on the ground, and it needs to be loaded after the test, all re...

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Problems solved by technology

[0006] Therefore, the above-mentioned test platform has the following technical defects: 1), due to the setting of the bracket, it needs to be raised first and then reset and retracted during the test. Therefore, the time for test preparation is relatively long. It is necessary to lift the bracket first, and then retract the entire device. Obviously, the whole operation process is cumbersome;

[0007] 2) During the lifting process of the reactor, the bracket and the reactor are generally relatively fixed by external parts (such as hoops). In this way, it is very inconvenient to disassemble and install the hoop after the bracket is erected. , and requires manual disassembly and assembly, therefore, there is a great potential safety hazard;

[0008] 3) After the reactor is unfolded, it is difficult to ensure that it is in a vertical state. At the same time, if it is turned over too quickly, the impact of the reactor will be caused at the moment of erection. In addition, the height of the reactor itself is relatively high, so the stability is obvious Insufficient, it is easy to cause damage to the reactor or a rollover accident

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