Conceptual design of an SFCL by use of BSCCO wire

Suzuki, K.; Baba, Jumpei; Nitta, T.

doi:10.1088/1742-6596/97/1/012293

Cited by 13 publications

(4 citation statements)

References 3 publications

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“…Due to the high transition temperatures of 110 K for Bi-2223 phase, these are applicable in numerous fields because of mechanical characteristics, higher upper critical magnetic field Hc 2 and greater critical current Jc. The BSCCO structures are potential candidates for commercial cables [102], magnets [103], MRI [104], SFCL [105] and magnetic sensors [106]. The properties Bi-2223 mechanism of superconducting are strongly connected with its hole concentrations, pinning ability and phase microstructure [107,108].…”

Section: Properties Of Superconductorsmentioning

confidence: 99%

Properties and Types of Superconductors

Hasan

2022

Superconductors

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The disappearing of electrical resistance below the critical temperature (Tc) is known as superconductivity discovered by Kamerlingh Onnes in 1911. Superconductors are consisted of two categories namely type I and type II also called soft and hard superconductors, respectively. Type I superconductors obey the Meissner effect while type II superconductors do not. The superconducting compounds are divided into three categories, (i) Metal based systems, (ii) Copper oxides (cuprates) and (iii) Iron based superconductors (IBSC). Metal-based superconductors are combination of cubic crystal configuration named the A15 structure. Initial IBSC was revealed in 2006 for LaFePO; nevertheless, Tc stayed as small as ~4 K. High-Tc compounds were then expressed for LaFeAsO1–xFx by means of Tc = 26 K in 2008. Superconductors have considerable positions in the lower temperature magnet applications such as MRI, nuclear magnetic resonance and superconducting quantum interference.

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Section: Properties Of Superconductorsmentioning

confidence: 99%

Properties and Types of Superconductors

Hasan

2022

Superconductors

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“…Superconducting Fault Current Limiters (SFCLs) are expected to be introduced in order not only to solve the fault current problems but also to improve reliability and stability of the power system. Many studies on SFCL have been carried out [1], [2].…”

Section: Introductionmentioning

confidence: 99%

Current Limiting Performance of Three-Phase Concentric Transformer Type SFCL at Unbalanced Fault Conditions

Shirai

Noda

Yamabe

et al. 2013

IEEE Trans. Appl. Supercond.

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We have proposed a transformer type SFCL whose primary and secondary superconducting coils have rewound structure. The primary coil is connected to a power line. The secondary one is short-circuited and has less turns than the primary coil. For small fault current, only the secondary coil turns to normal state. Inductive component of impedance at the primary terminal mainly appears. For larger fault current, the primary coil also turns to normal state, resistive component additively appears. A three-phase concentric model of the proposed SFCL was designed and fabricated. Each phase SFCL must works independently without large interference among phases. Fundamental current limiting characteristics of the proposed SFCL were reported at a three-line-to-ground fault using a lab scale power transmission system. In this paper, current limiting performance of the SFCL at unbalanced fault conditions was investigated and discussed. Influence of operations of the fault phase SFCL to the non-fault phase ones was discussed. It was confirmed that fault current limiting operation was successfully performed in single-line-to-ground fault, double-line-short fault and double-line-ground fault.

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“…Under this condition, it is expected to install SCFCL to power systems in order to solve the fault current problems and to improve reliability and stability of the power system. Therefore many studies on SCFCL have been carried out [1]- [3].…”

Section: Introductionmentioning

confidence: 99%

“…However, in inductive FCL of transformer type, when the required inductance Manuscript is fixed, the length of the HTS wire, that is, the resistance of the wire at the normal state is also fixed [1].…”

Section: Introductionmentioning

confidence: 99%

Basic Experiments on Transformer Type SCFCL of Rewound Structure Using BSCCO Wire

Nii

Shouno

Shirai

2009

IEEE Trans. Appl. Supercond.

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Current limiting impedance of a transformer type Superconducting Fault Current Limiters (SCFCL) is decided by the inductance of the primary coil. And the current limiting performance deeply depends on an inductance and a resistive component at the normal state of the secondary coil. In order to have better current limiting performance, the SCFCL would have smaller inductance, and at the same time, larger resistance of the secondary coil for a proper limiting impedance (that is, reactance of the primary coil). Therefore, we propose a new configuration of the transformer type SCFCL having rewound structure. This SCFCL consisted of two rewound coils using BSCCO wire and it can be made in low inductance and high resistance of the secondary coil. The model SCFCL having rewound structure was designed and made and the basic experiments were carried out in order to investigate the fundamental characteristics.Index Terms-BSCCO wire, inductive limiting, rewound structure, transformer type.

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Conceptual design of an SFCL by use of BSCCO wire

Cited by 13 publications

References 3 publications

Properties and Types of Superconductors

Properties and Types of Superconductors

Current Limiting Performance of Three-Phase Concentric Transformer Type SFCL at Unbalanced Fault Conditions

Basic Experiments on Transformer Type SCFCL of Rewound Structure Using BSCCO Wire

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