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Equipment and method for testing alternating current big current impact

An impact test, high current technology, applied in the direction of measuring devices, measuring electricity, measuring electrical variables, etc., can solve the problems of superconducting tape and magnet performance degradation, burning, etc., to achieve a reasonable test process, high reliability, and avoid damage Effect

Inactive Publication Date: 2014-03-12
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At the same time, the AC high-current impact of superconducting strips and magnets is an overcurrent impact on superconducting strips an

Method used

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  • Equipment and method for testing alternating current big current impact
  • Equipment and method for testing alternating current big current impact
  • Equipment and method for testing alternating current big current impact

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0037] Such as figure 2 As shown, the embodiment of the present invention is a high-current impact device for superconducting strips and magnets, and the device has two functions of high-current impact and critical current testing. The high current impact device includes an AC power supply Uac, a superconducting magnet power supply Udc, a voltage regulating transformer Tr1, a transformer Tr2, a circuit breaker SW1, a first single-pole double-throw switch S1, a second single-pole double-throw switch S2, a first current sensor A1, The second current sensor A2, the voltage sensor V1, the first thyristor group G1, the second thyristor group G2 and the resistor R.

[0038] The AC power supply Uac is connected to the primary coil L11 of the voltage regulating transformer Tr1, the secondary coil L12 of the voltage regulating transformer Tr1 is connected i...

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Abstract

Equipment for testing alternating current big current impact comprises a voltage regulator (Uac), a superconducting magnet power supply (Udc), a regulating transformer (Tr1), a transformer (Tr2), a circuit breaker (SW1), a first single-pole double-throw switch (S1), a second single-pole double-throw switch (S2), a first current sensor (A1), a second current sensor (A2), a voltage sensor (V1), a first thyristor group (G1), a second thyristor (G2) and a resistor (R). By adopting the method for testing alternating current big current impact disclosed by the invention, the alternating current big current impact to a superconducting strip and a magnet is realized under the circumstance of controlling the alternating current big current size, impact time and initial phase angle, and meanwhile, the critical current testing of the superconducting strip and the magnet is combined, thus the testing procedure is simplified, the testing process is more reasonable, and the test time is saved.

Description

technical field [0001] The invention relates to an AC high-current impact testing device and testing method for superconducting strips and coils. Background technique [0002] With the rapid development of superconducting technology, especially the rapid development of Bi series and YBCO superconducting tapes, superconducting tapes are used in power systems such as superconducting energy storage, superconducting current limiters, superconducting transformers, superconducting cables and superconducting motors, etc.), major scientific engineering (thermonuclear fusion experimental reactor), medical treatment (nuclear magnetic resonance instrument), transportation (superconducting maglev train) and military affairs have been widely used in practical applications. Therefore, in order to ensure the optimal design and safe and reliable operation of superconducting magnets, performance tests such as overcurrent impact on superconducting strips and magnets are essential. [0003] T...

Claims

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Application Information

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IPC IPC(8): G01R31/00
Inventor 张志丰孙强刘大千邱清泉肖立业戴少涛张国民
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI