Multi-directional-adjustment special operation platform for partial discharge test of ultrahigh-voltage transformer

Abstract

The invention relates to a multi-directional-adjustment special operation platform for a partial discharge test of an ultrahigh-voltage transformer. The operation platform is characterized in that the operation platform comprises an operation platform base and an apparatus bracket arranged on the operation platform base, the apparatus bracket includes a bracket upper end surface, a rotating shaft, a bracket rear end surface, a fixed support rod, and a bracket lower end surface, the operation platform base comprises a supporting seat, bracket rotation bearings, bracket fixing plates, and height adjusting fastening hoops, the rotating shaft of the apparatus bracket and inner rings of the bracket rotation bearings are assembled in interference fit, and two ends of the fixed support rod of the apparatus bracket are respectively inserted into groove holes of the bracket fixing plates. The operation platform can be adjusted at any angle and the apparatus putting angle, test operation personnel can put a test apparatus at a proper position and at a proper angle according to his own sitting posture and work habits, the damage to the test personnel and apparatus equipment due to long-time direct sunlight is avoided, and the convenience and the comfort in a test process are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of partial discharge of ultra-high voltage transformers, in particular to a multi-directionally adjustable special operating platform for partial discharge tests of ultra-high voltage transformers. Background technique [0002] Induction withstand voltage partial discharge test is the most important test item in UHV transformer handover test and diagnostic test, and it is used to check whether there are insulation defects inside UHV transformer. According to the requirements of GB1094.3-2003, the UHV transformer induction withstand voltage zone partial discharge measurement test is divided into 7 stages of pressurization, and the test process lasts for more than 80 minutes. If the wave correction before the test and the test circuit debugging process are considered, then The test time is longer. This test requires simultaneous operation and observation of the partial discharge detector, voltage divider mete...

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Problems solved by technology

Chinese patent CN201220107000.8 discloses "a mobile partial discharge detector carrying vehicle" which proposes a carrying vehicle that can easily move and operate the partial discharge detector, but does not make arrangements for the placement of other test instruments. Still not convenient enough for practical use

If there is no special operating platform, only the ordinary desktop is used to place the test instrument. In addition to the inconvenience caused by the non-adjustable height, the test operator needs to sometimes observe from the top surface and sometimes from the front, which is extremely inconvenient; at the same time, the instrument screen will reflect light in the sun. , it is necessary to select a suitable angle to see the screen clearly; when multiple testers operate together, due to the height coordination of tables and chairs, it is impossible to choose a suitable height for the test, which will increase the fatigue of the testers during long-term tests

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