Experimental investigation of AC losses and effective time constant in the high current cable

Егоров, С. А.; Lancetov, A.; Лебедев, А. А.; Rodin, Igor; Trokhachev, G.V.; Zhelamskij, M.

doi:10.1016/s0921-4534(98)00476-6

Cited by 2 publications

(5 citation statements)

References 2 publications

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“…The equipment and technique used for the measurements with both calorimetrical and magnetization methods have been already described in [2]. The samples are tested under the low amplitude T sinusoidal oscillations or high amplitude triangle pulses of the transverse homogeneous magnetic field of up to 5 T. The samples ( Fig.…”

Section: Short Sample Ac Loss Measurements Without Transport Currentmentioning

confidence: 99%

“…To calibrate the magnetization method, the calorimetrical method described in [2] is used simultaneously with the magnetization one during the test runs.…”

Section: Short Sample Ac Loss Measurements Without Transport Currentmentioning

confidence: 99%

“…Initially, to provide electromagnetic measurements of AC losses in the CICC of TFCI using local pick-up coil like one for the short sample measurements [2] was assumed. But after the negative experience with the local pick-up coils has been gained in testing of the CICC short samples with transport current, the configuration of the pick-up coil was changed to one comprising all length of the conductor in the insert coil, including the joints (Fig.…”

Section: Ac Loss Measurements In the Insert Model Coilsmentioning

confidence: 99%

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Energy loss measurements in the CICC short samples and model coil

Rodin

Егоров

Lancetov

et al. 2003

IEEE Trans. Appl. Supercond.

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The AC performance of the superconducting magnets of thermonuclear tokamak reactors and superconducting magnetic energy storages (SMES), made of the cable-in-conduit conductors (CICC), is greatly influenced by the deposition of the electromagnetic and mechanical energy losses in the conductor. The paper describes the electromagnetic techniques used for the measurements of these losses in the CICC short samples with and without transport current and in the International Thermonuclear Experimental Reactor (ITER) Toroidal Field Conductor Insert Coil (TFCI).

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Section: Short Sample Ac Loss Measurements Without Transport Currentmentioning

confidence: 99%

“…To calibrate the magnetization method, the calorimetrical method described in [2] is used simultaneously with the magnetization one during the test runs.…”

Section: Short Sample Ac Loss Measurements Without Transport Currentmentioning

confidence: 99%

Section: Ac Loss Measurements In the Insert Model Coilsmentioning

confidence: 99%

See 1 more Smart Citation

Energy loss measurements in the CICC short samples and model coil

Rodin

Егоров

Lancetov

et al. 2003

IEEE Trans. Appl. Supercond.

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“…1 have been tested at the AC Loss Measuring Station of the Cryogenic Test Facility of the Efremov Institute [1]. The equipment and technique used for the measurements with both calorimetrical and magnetization methods have been already described in [2]. The samples were tested under the low amplitude T sinusoidal oscillations and high amplitude triangle pulses of the transverse homogeneous magnetic field B, been faced to the field by their narrow, and then by their wide sides.…”

Section: Short Sample Ac Loss Measurements Without Transport Currentmentioning

confidence: 99%

“…An area of such a loop correlates with real AC losses depositing in a sample , where is the applied magnetic field intensity; is real magnetization of the sample. To evaluate the parameters and of the calibration functions , and for the cross-checking of the results the calorimetrical method described in [2] was used simultaneously with the magnetization one during of about 1/3 of all the test runs. Some examples of the results are shown in Fig.…”

Section: Short Sample Ac Loss Measurements Without Transport Currentmentioning

confidence: 99%

AC loss and interstrand resistance measurement for NbTi cable-in-conduit conductor

Егоров

Rodin

Lancetov

et al. 2002

IEEE Trans. Appl. Supercond.

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The results of AC loss and interstrand resistance measurements for the short samples of 4 kA @ 4 T NbTi cable-in-conduit conductor (CICC) are described. The effect of real orientation of the NbTi strands in regard to the magnetic field applied transversally to the cable axis on the hysteresis losses, and the magnetic field dependence of the CICC effective time constant have been observed. No substantial effect to the interstrand resistance of the electromagnetic force, but the indications of the strand saturation and supercoupling circulation current effects have been found for a sample carrying a transport current. Mechanical hysteresis losses for this sample have been evaluated with new technique basing on the determination of the location of the conductor electric center. Dependence of these losses on the applied electromagnetic force ramp rate has been found.

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Experimental investigation of AC losses and effective time constant in the high current cable

Cited by 2 publications

References 2 publications

Energy loss measurements in the CICC short samples and model coil

Energy loss measurements in the CICC short samples and model coil

AC loss and interstrand resistance measurement for NbTi cable-in-conduit conductor

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