Transformer iron core grounding wire structure

Abstract

The invention discloses a transformer iron core grounding wire structure which comprises a placing table. A transformer body is fixedly installed at the upper end of the placing table through a first positioning bolt, an iron core grounding lead-out wire is arranged on the transformer body, and a connecting wire is detachably arranged at one end of the iron core grounding lead-out wire. A protection mechanism is detachably arranged at the lower end of one side of the transformer body; and under the driving of the air cylinder and in cooperation with the use of the push plate and the U-shaped reset frame, the bending position of the grounding wire can be conveniently and rapidly corrected, the grounding wire is prevented from being broken due to excessive bending, and therefore normal use of the grounding wire structure is guaranteed. Under the coordination effect of a pull rod, a pull plate, a spring, a limiting rod and a limiting hole, convenience is provided for adjustment and fixation of the second protection frame so that convenience is provided for protection of connecting wires with different lengths, the connecting wires are prevented from aging due to long-time sunlight irradiation, and the service life of the connecting wires is further prolonged.

Description

technical field [0001] The invention relates to the technical field of transformer grounding, in particular to a transformer core grounding lead structure. Background technique [0002] A transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. The main components are the primary coil, the secondary coil and the iron core (magnetic core). It mainly includes the functions of voltage transformation, current transformation, impedance transformation, isolation and voltage regulation. In transformers, windings and iron cores are the main components for transmitting and transforming electromagnetic energy, and the safety of windings and iron cores is the key to ensure the reliable operation of transformers. During the operation of the transformer, the electric field formed between the live windings and the lead wires and the oil tank is an uneven electric field. The iron core and other metal components are in this electric field. Sinc...

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Problems solved by technology

During the operation of the transformer, the electric field formed between the charged winding and the lead wire and the oil tank is an uneven electric field. The iron core and other metal components are in this electric field. Since the iron core and other metal components are in different positions, the potentials are also different. When When the potential difference between two points reaches the insulation breakdown between them, a spark discharge will be generated, resulting in an accident

[0003] In the existing transformer core grounding wire structure, most of the connection between the core grounding lead wire and the connecting wire and between the connecting wire and the grounding wire is only fixed by a single bolt, resulting in a firm connection between the core grounding lead wire and the connecting wire and the connecting wire and the grounding wire The safety of the transformer cannot be guaranteed, and the existing transformer core grounding lead structure does not have a protective mechanism, which leads to the connection line being exposed to sunlight for a long time, which is prone to aging and has a low service life. In addition, When the grounding wire in the existing transformer core grounding lead structure is bent, it cannot be corrected quickly, so that the grounding wire is prone to breakage due to excessive bending, and the normal use of the grounding lead structure cannot be guaranteed. Therefore, we A transformer core grounding lead structure is proposed to solve the above problems

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