Device and method for measuring interturn resistance of non-insulated coil

A technology of resistance testing and coil turns, which is applied in the field of non-insulated coil turn-to-turn resistance testing devices, can solve the problems of high price, uneconomical, and huge workload of superconducting strips, and achieve saving superconducting strips, saving costs, The effect of improving the accuracy of the test

Active Publication Date: 2021-06-04
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the price of superconducting strips is relatively expensive. It seems that the method of fitting the inter-turns of non-insulated superconducting coils through actual winding of non-insulated coils and carrying out flow tests at the required low temperature is a huge and uneconomical method. The development of a Small and fast non-insulated coil turn-to-turn resistance test device becomes very necessary

Method used

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  • Device and method for measuring interturn resistance of non-insulated coil
  • Device and method for measuring interturn resistance of non-insulated coil
  • Device and method for measuring interturn resistance of non-insulated coil

Examples

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Embodiment 1

[0039] The invention provides a non-insulated coil turn-to-turn resistance test device, which includes a bottom plate 3, a first baffle plate 4, a current lead 5, a voltage lead 6, a conductive column 7, a pressure push block 9, a pressure regulating screw 10 and a second stop plate 11;

[0040] The bottom plate 3 is provided with an accommodating groove 12, the first baffle plate 4 and the second baffle plate 11 are arranged at a certain distance along the axial direction of the accommodating groove 12, and the pressure push block 9 is placed In the accommodating groove 12 between the first baffle plate 4 and the second baffle plate 11 , the pressure regulating screw 10 extends through the second baffle plate 11 into the accommodating groove 12 Connect with the pressure push block 9;

[0041] The current lead 5, the conductive column 7 and the voltage lead 6 are arranged in the accommodating groove 12 between the first baffle plate 4 and the pressure pushing block 9 in a mir...

Embodiment 2

[0055] The present invention provides a method for testing the interturn resistance of a non-insulated coil, by using the non-insulated coil interturn resistance test device described in the above-mentioned embodiment 1, comprising the following steps:

[0056] S1, preparing several test strip sheets 1, and stacking the test strip sheets to form a test strip 2;

[0057] S2. Put the test strip 2 into the accommodating groove 12 between the voltage leads 6;

[0058] S3, using the pressure regulating screw 10 to adjust the distance between the pressure push block 9 and the first baffle plate 4, so that the test strip 2 reaches a suitable pressure value;

[0059] S4. Put the non-insulated coil turn-to-turn resistance testing device into the low temperature environment where the coil is actually used;

[0060] S5. Pass the current through the current lead 5, collect the voltage through the voltage lead 6, and gradually increase the current, and obtain the V-I curve after collectin...

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Abstract

The invention relates to a non-insulated coil turn-to-turn resistance testing device in the field of superconducting strip resistance measurement, which includes a base plate, a first baffle, a current lead, a voltage lead, a conductive column, a pressure push block, a voltage regulating screw and a second Baffle plate; the base plate is provided with accommodating groove, the first baffle plate and the second baffle plate are respectively arranged at a certain distance along the axial direction of the accommodating groove, and the pressure push block is placed in the accommodation space between the first baffle plate and the second baffle plate. In the slot, the pressure regulating screw extends through the second baffle into the accommodating slot and connects with the pressure push block; the current lead, conductive column and voltage lead are arranged between the first baffle and the pressure push block in a mirror-symmetrical manner In the holding tank between the two voltage leads, the strip to be tested is placed in the holding tank between the two voltage leads. The invention also discloses a method for testing the interturn resistance of the non-insulated coil. The invention can quickly and effectively measure the inter-turn resistance value of the non-insulated superconducting coil under different pressures and different temperatures, thereby improving the efficiency.

Description

technical field [0001] The invention relates to the field of resistance measurement of superconducting strips, in particular to a device and method for measuring interturn resistance of non-insulated coils. Background technique [0002] In 2011, Hahn proposed the concept of superconducting uninsulated coils. In this kind of coil, the inter-turn insulation of the coil is banned, that is, the surface of the superconducting strip for preparing the coil is not sprayed with insulating substances. This non-insulated superconducting coil between turns avoids the potential damage to the magnet caused by the quench phenomenon accompanying the insulated superconducting magnet. During the preparation of non-insulated superconducting coils, non-insulating materials with certain conductivity are filled between adjacent superconducting strips. Once the non-insulated coil is quenched, the quench current can flow through the adjacent layers, so as to ensure the normal operation of the sup...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R27/08G01R31/00G01R1/04
CPCG01R1/0408G01R27/08G01R31/003
Inventor 朱佳敏陈思侃甄水亮吴蔚丁逸珺
Owner SHANGHAI JIAOTONG UNIV
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