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Oil-immerged inversed current transformer

A current transformer and oil-immersed inverted technology, which is applied in the direction of inductors, circuits, transformers, etc., can solve the problems of easy damage to porcelain sleeves, heavy maintenance workload, and poor anti-fouling performance, so as to avoid large thickness and reduce weight , the overall aesthetic effect

Active Publication Date: 2010-10-13
JIANGSU SIYUAN HERTZ TRANSFORMER
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing oil-immersed current transformers mainly have the following disadvantages: large volume, heavy weight, easy damage to the porcelain sleeve, easy leakage, flammability, explosion, poor anti-fouling performance, and heavy maintenance workload
Gas-filled current transformers generally use sulfur hexafluoride as the medium and adopt an inverted structure. Compared with oil-immersed current transformers, gas-filled current transformers have the advantages of light weight and small volume, but there are also gas leakage problems. Leakage, large maintenance workload, easy to cause environmental pollution and other shortcomings, so it is necessary to improve the existing oil-immersed current transformers to improve product performance

Method used

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  • Oil-immerged inversed current transformer
  • Oil-immerged inversed current transformer
  • Oil-immerged inversed current transformer

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Embodiment Construction

[0012] Refer to attached figure 1 , the oil-immersed inverted current transformer of the present invention includes a primary conductive rod 1, a housing 2, a secondary winding 3, a terminal 4, a bushing 5, a shielding insulation 6, a secondary lead tube 7, a base 8, two The secondary outlet box 9, expander 10, oil drain valve 11, inner shield 12, lead wire isolation cover 13, the primary conductive rod 1 passes through the inner shield 12, and the secondary winding 3 extends out of the housing 2 to form a current transformer. The primary conductive rod 1 can be a single-turn or multi-turn structure, and the primary conductive rod 1 in this embodiment is designed to have two turns. Two terminals 4a, 4b of the connection terminal 4 are respectively fixed at both ends of the primary conductive rod 1 . The secondary winding 3 is arranged in the inner shield 12 , the inner shield 12 is fixed in the casing 2 , and the secondary winding 3 is connected with the secondary lead pipe 7...

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Abstract

This invention relates to one oil dipped reversed current mutual-inductor, which comprises one conductor bar, shell, second coil set, cover tube, expansion device and oil valve, wherein, the conductor bar passes the inner shield; the second coil set stretches outside shell to form the device; the shell, cover tube, base socket form sealed part full of isolation oil; inner shield, second wire tubeare covered with total isolation materials; the total isolation materials covering the inner shield and secondary wire for isolation.

Description

technical field [0001] The invention relates to a current transformer used in the electric power industry, in particular to an inverted current transformer using insulating oil as an insulating medium. Background technique [0002] After searching the relevant patent documents, no oil-immersed inverted current transformer with the same structure as the present invention using insulating oil as the insulating medium has been retrieved. There are two main types of existing high-voltage current transformers: oil-immersed current transformers and gas-filled current transformers. Oil-immersed current transformers can be divided into three types: upright type, inverted type and compound type. The existing oil-immersed current transformers mainly have the following disadvantages: large volume, heavy weight, easy damage to the porcelain sleeve, easy leakage, flammability, explosion, poor anti-fouling performance, and heavy maintenance workload. Gas-filled current transformers gene...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F38/30
Inventor 宋会发韩光王海平杨红斌冒爱丽刘志刚
Owner JIANGSU SIYUAN HERTZ TRANSFORMER
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