Extra-high-tension GIS self-contained insulation test platform based on oil-immersed reactor

Abstract

The invention provides an extra-high-tension GIS self-contained insulation test platform based on an oil-immersed reactor. The platform comprises an insulation tester and a movable platform capable ofself-support lifting; the movable platform comprises a platform chassis, a main hydraulic cylinder arranged on the platform chassis, a carriage and a pedestal; the insulation tester is arranged on the movable platform via the carriage and pedestal, and the carriage and pedestal can be overturned for 90 degree and thus arranged vertically by the main hydraulic cylinder; and the insulation tester comprises a resonance reactor, a capacitive attenuator for measurement and a telescopic grading ring, a preset gap is kept between the resonance reactor and capacitive attenuator, one end of the resonance reactor and one end of the capacitive attenuator are fixed to the pedestal, and the other ends of the resonance reactor and capacitive attenuator are provided with the telescopic grading ring. Onsite equipment assembling and hoisting are not needed, the space occupied by equipment is reduced greatly, rapid transfer in a transformation station can be realized, and onsite AC withstand voltage test of extra-high-tension GIS equipment can be carried out safely and conveniently in the transformer station.

Description

technical field [0001] The invention relates to the field test field of high-voltage electrical equipment, in particular to an UHV GIS integrated insulation test platform based on an oil-immersed reactor. Background technique [0002] Insulation breakdown faults of UHV GIS occur in handover test, commissioning and operation, and insulation test is the most effective method to check such faults. At present, there are two problems in the field implementation of this type of test: [0003] (1) The safety risk of the test is high. Due to the high test voltage, and the traditional reactor and voltage divider are independent tower structures, the equipment layout occupies a large area and is close to adjacent equipment, which is prone to air gap discharge; The press is top-heavy and there is a potential safety hazard of dumping, which is more prominent in areas prone to short-term strong winds such as Northwest China. [0004] (2) The existing equipment is assembled with a multi...

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Problems solved by technology

[0003] (1) The safety risk of the test is high. Due to the high test voltage, and the traditional reactor and voltage divider are independent tower structures, the equipment layout occupies a large area and is close to adjacent equipment, which is prone to air gap discharge; The press is top-heavy and there is a potential safety hazard of dumping, especially in areas prone to short-term strong winds such as Northwest

[0004] (2) The existing equipment is assembled with a multi-section structure, the test period is long, the number of test equipment is large, the volume is large, and the weight is heavy. The on-site assembly is not only a heavy workload, but also difficult to lift. The test period is as long as 2-3 days. Affects the system power recovery time after emergency repair

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