Device for detecting influence of outgoing line mode of vehicle-mounted transformer on short-circuit resisting capability

Abstract

The invention relates to a device for detecting the influence of the outgoing line mode on the short-circuit resistance of a vehicle-mounted transformer, which is characterized in that a winding is arranged in an oil tank, an incoming line terminal is arranged at the upper part of the oil tank, an outgoing line device comprising an outgoing line terminal is arranged on the side surface of the oil tank, and the incoming line terminal and the outgoing line terminal are connected with the winding; the wire inlet terminal and the wire outlet terminal are connected with an external current applying unit to form a closed loop, an upper end camera is arranged on the upper portion of the oil tank, a side face camera is arranged on the side of the wire outlet device, and a plurality of vibration sensors are arranged in the wire outlet device and on the outer side face of the wire outlet device. The vibration sensors are installed at the positions of an outgoing line, a paperboard and an outgoing line clamp of the outgoing line device, the vibration sensors are connected into the signal collecting and processing device through shielding signal lines, and according to a calculated test data result, if the outgoing line, the paperboard and the outgoing line clamp deform seriously, the outgoing line mode of the vehicle-mounted transformer is adjusted. According to the invention, data and basis can be provided for improving the anti-short-circuit capability of the vehicle-mounted transformer in the future.

Description

technical field [0001] The invention belongs to the technical field of transformer manufacturing, and in particular relates to a device for detecting the influence of the outlet mode of a vehicle-mounted transformer on the anti-short circuit capability. Background technique [0002] The short-circuit resistance capacity of power transformers is one of the important performance indicators to ensure the safe operation of the power grid. In recent years, power grid failures and accidents caused by insufficient short-circuit resistance capacity of transformers have attracted extensive attention from the industry. With the continuous improvement of simulation technology, the calculation and evaluation method of short-circuit resistance capability has been greatly improved. Compared with conventional transformer products, vehicle-mounted transformers are used to serve more forms of flexible power supply requirements of power supply companies, and truly realize temporary power supp...

AI Technical Summary

Problems solved by technology

On the other hand, the test product manufacturing cost of the transformer short-circuit resistance capability is relatively expensive, and the partial equivalent model test cannot truly reflect the influencing factors studied.

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