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Continuous measuring device and method for critical current of superconducting long tape

A critical current continuous, measuring device technology, applied in the field of superconducting power transmission, can solve problems such as the inability to move the superconducting strip and the inability to analyze the overall distribution of the critical current in the long superconducting strip.

Pending Publication Date: 2021-08-20
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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  • Claims
  • Application Information

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Problems solved by technology

However, none of the testing devices in the prior art can conveniently move the position of the superconducting strip during the test and perform multiple measurements on different parts of the strip
This makes it impossible to analyze the overall distribution of the critical current in superconducting long bands

Method used

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  • Continuous measuring device and method for critical current of superconducting long tape
  • Continuous measuring device and method for critical current of superconducting long tape
  • Continuous measuring device and method for critical current of superconducting long tape

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Embodiment Construction

[0038] The application will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, but not to limit the protection scope of the present application.

[0039] figure 1 It is a structural schematic diagram of a continuous measurement device for superconducting long band critical current in the present invention. Such as figure 1 As shown, a superconducting long-band critical current continuous measurement device includes a first take-up reel 1 , a second take-up reel 2 , a brake unit, a measurement unit, and a liquid nitrogen tank 3 . The first and second take-up reels 1 and 2 are respectively wound with the head end and tail end of the superconducting long tape 4 for testing, and the section of the superconducting long tape to be tested is placed in the liquid nitrogen tank 3; the brake unit Detect the tension of the superconducting long tape t...

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Abstract

A continuous measuring device and method for critical current of a superconducting long tape comprises a first take-up reel (1), a second take-up reel (2), a brake unit, a measuring unit and a liquid nitrogen tank (3), the first take-up reel (1) and the second take-up reel (2) are respectively wound with the head end and the tail end of the superconducting long tape (4) for testing, and a to-be-detected section of the superconducting long tape is arranged in the liquid nitrogen tank (3); the brake unit detects the tension of a to-be-detected section of the superconducting long tape and adjusts the rotation speed of the first take-up reel (1) and the second take-up reel (2) based on the tension; and the measuring unit measures the critical current of the to-be-detected section of the superconducting long tape based on a four-lead method. The testing device is high in testing accuracy, small in system error, convenient to operate and low in cost.

Description

technical field [0001] The invention relates to the field of superconducting power transmission, in particular to a continuous measuring device and a measuring method for a superconducting long strip critical current. Background technique [0002] The application of superconducting technology in power systems is diverse, and it is also one of the main directions of superconducting application research in recent years. Compared with power cables, superconducting cables have great advantages, such as: strong power transmission capacity, cost saving, small footprint, extremely low line impedance, small transmission loss, and strong anti-magnetic interference ability; relatively low The voltage can be used for long-distance transmission, and it can also be transmitted underground to avoid noise, electromagnetic pollution and safety hazards caused by ultra-high-voltage high-altitude transmission, and to protect the ecological environment. [0003] At present, the critical curren...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/12
CPCG01R33/1246
Inventor 李红雷宗曦华焦婷郑健魏本刚鲁燕青韩云武张喜泽高凯陈志越田祥
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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