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Low-temperature current transformer coil

A current transformer, low-temperature technology, applied in the direction of inductors, transformers/inductor coils/windings/connections, coil manufacturing, etc., can solve problems such as deformation of manganese-copper wires that are not mentioned, and achieve insulation strength Effect

Inactive Publication Date: 2014-12-10
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The invention patent does not mention the possible impact of low temperature on the hollow skeleton of the epoxy resin mixed glue used, nor does it mention the impact of low temperature on the deformation of manganin wire

Method used

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] Such as figure 1 As shown, the low-temperature current transformer coil of the present invention mainly includes a low-temperature rubber inner frame 1 , low-temperature insulated wire turns 2 and a low-temperature rubber outer frame 3 . First, the low-temperature rubber inner frame 1 is manufactured and processed; secondly, the low-temperature insulating wire turns 2 are uniformly wound on the low-temperature rubber inner frame 1 as required; finally, the low-temperature rubber outer frame 3 is manufactured and processed. The low-temperature rubber inner frame 1 is located at the center of the low-temperature current transformer coil, and is a hollow ring structure; the low-temperature insulated wire turns 2 adopt low-temperature insulating enameled wires that can withstand not lower than -208°C along the diameter of the low-temperature...

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PUM

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Abstract

The invention discloses a low-temperature current transformer coil. The low-temperature current transformer coil mainly comprises a low-temperature glue inner frame (1), a low-temperature insulated wire turn (2) and a low-temperature glue outer frame (3), wherein the low-temperature glue inner frame (1) is arranged in the center of the low-temperature current transformer coil, and adopts a hollow ring-shaped structure; the low-temperature insulated wire turn (2) is formed by uniform winding in the radial direction of the low-temperature glue inner frame (1) of low temperature resistant insulation varnished wire; the head and tail lead wires (23) of the low-temperature insulated wire turn (2) are clung to the outer wall of the low-temperature glue inner frame (1), and are led out from a wire return groove (12) in the outer wall of the low-temperature glue inner frame (1); the low-temperature glue outer frame (3) is ring-shaped, and wraps the low-temperature insulated wire turn (2) and the low-temperature glue inner frame (1) except the lead wires (23).

Description

technical field [0001] The invention relates to a low-temperature current transformer coil applied to superconducting power equipment. Background technique [0002] Thanks to the development of superconducting materials, the research on superconducting power devices has also made great progress in recent years, and some devices have been applied to actual power grids. Similar to conventional power equipment, the windings of superconducting power equipment such as superconducting transformers, superconducting current limiters, etc. run. In order to obtain the shunt status of parallel superconducting windings under steady state, overcurrent impact and other conditions, the current of superconducting windings must be measured at -200°C. [0003] The biggest problem brought by low temperature to the transformer is the damage to the structure and insulation of the transformer. For example, the transformer made of conventional plastic or ordinary epoxy will crack at low tempera...

Claims

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Application Information

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IPC IPC(8): H01F38/38H01F27/30H01F41/04
Inventor 马韬张京业朱志芹戴少涛赵连岐薛弛滕玉平许熙
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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