A transformer grounding device

A grounding device and transformer technology, which is applied in the field of transformer manufacturing, can solve the problems of easy oil leakage and low pressure resistance of the grounding bushing, and achieve the effect of convenient installation and maintenance and simple structure

Active Publication Date: 2018-06-29
SHANDONG POWER EQUIP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This grounding method needs to install two grounding bushings on the top of the box cover. The withstand pressure of the grounding bushings is small, and oil leakage is prone to occur when the transformer is under high pressure. When the transformer operating environment (such as underground substation) is not good When the overall maintenance conditions are met, the situation cannot be remedied

Method used

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Embodiment Construction

[0010] Below by non-limiting embodiment and in conjunction with accompanying drawing, invention is further described:

[0011] As shown in the accompanying drawings, a transformer grounding device includes a transformer oil tank 8, a wire 1, and a ground wire 7, and also includes a boss-shaped grounding riser 6 with a through hole in the middle of the transformer oil tank 8 cover. The junction box 2 and the ground nut 4 on the grounding riser 6, the cover 5 covered on the grounding riser, the wire 1 is connected to the junction box 2 through the through hole of the grounding riser, and the grounding wire 7 is connected to the grounding riser. On the ground nut 4 , a lead wire is also arranged between the junction box 2 and the ground nut 4 .

[0012] As a specific embodiment, lead wires 1 are respectively drawn from the upper yoke of the transformer core and the upper clamp of the iron core, and then connected to the terminals of the junction box 2 through the grounding riser ...

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Abstract

The invention discloses a transformer grounding device, which includes a transformer oil tank, conducting wires, and grounding wires. The junction box on the high seat, the ground nut, and the cover on the ground riser, the wires are connected to the junction box through the through holes of the ground riser, the ground wire is connected to the ground nut, and the junction box is connected to the ground nut. Lead wires are also arranged between the ground nuts. The invention is beneficial in that the device has a simple structure and double protection functions, which solves the problem that the grounding bushing existing in the grounding of the original iron core and clamps cannot withstand high pressure, and is convenient for installation and maintenance.

Description

technical field [0001] The invention relates to the field of transformer manufacturing, in particular to a transformer grounding device. Background technique [0002] Most of the existing transformer cores and clips are grounded by leading wires from the upper yoke of the iron core and the upper clip of the iron core respectively. The ends of the wires are connected to the end of the grounding sleeve installed on the top of the transformer box cover. The ground is grounded in a way that the bar connection introduces the induced current into the ground. This grounding method needs to install two grounding bushings on the top of the box cover. The withstand pressure of the grounding bushings is small, and oil leakage is prone to occur when the transformer is under high pressure. When the transformer operating environment (such as underground substation) is not good When the overall maintenance conditions are met, this situation cannot be remedied. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/00H01F27/36H01R4/66
Inventor 吕禹许涛吕斌李美永徐天锡周诚张聪
Owner SHANDONG POWER EQUIP
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