“CABLE AND WIRES” JOURNAL - 2024 #5
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EQUIPMENT AND TECHNOLOGIES
DOI 10.62994/2072-215X.2024.28.35.002
CABLE TECHNOLOGY A HUNDRED YEARS AGO
E.B. Vasiliev, Cand. Sc. (Economics), Chairman of the Board of Directors of JSC VNIIKP, full member of the RF AES
Abstract. The article presents a detailed analysis of cable designs produced in the early 20th century in Russia. The brands and types of cables and wires, as well as the materials used in their production, are given. The standards to which the manufactured products had to comply are indicated, the mechanical and electrical characteristics of conductive and electrical insulating materials are given.
An attempt is made to compare the level of materials and the quality of comparable cable designs produced today and a hundred years ago.
Key words: conductors, insulated conductors, impregnating compounds, cotton yarn, gutta-percha, vulcanized rubber, lead-sheathed, asphalt-impregnated and armored cables
НАУКА И ТЕХНИКА
DOI 10.62994/2072-215X.2024.72.61.003
MANUFACTURING AND TESTS OF PROTOTYPE ELECTRICAL JOINTS OF A WINDING WIRE OF HIGH-FIELD HTS-2 MAGNETIC COIL
A.V. Berezovsky, Leading Research Engineer, JSC “D.V. Efremov Scientific Research Institute of Electrophysical Equipment”;
A.S. Bursikov, Chief Specialist, JSC “D.V. Efremov Scientific Research Institute of Electrophysical Equipment”;
O.S. Vasilieva, Research Engineer of the 1st category, JSC “D.V. Efremov Scientific Research Institute of Electrophysical Equipment”;
D.V. Glushaev, Leading Research Engineer, JSC “D.V. Efremov Scientific Research Institute of Electrophysical Equipment”;
E.R. Zapretilina, Cand. Sc. (Engineering), Chief Specialist, JSC “D.V. Efremov Scientific Research Institute of Electrophysical Equipment”;
O.A. Kovalchuk, Head of Division, JSC “D.V. Efremov Scientific Research Institute of Electrophysical Equipment”;
A.A. Lantsetov, Chief Specialist, JSC “D.V. Efremov Scientific Research Institute of Electrophysical Equipment”;
A.A. Mednikov, Head of Department, JSC “D.V. Efremov Scientific Research Institute of Electrophysical Equipment”;
T.A. Khon, Research Engineer of the 2nd category, JSC “D.V. Efremov Scientific Research Institute of Electrophysical Equipment”;
D.L. Yurin, Design Engineer of the 1st category, JSC “D.V. Efremov Scientific Research Institute of Electrophysical Equipment”
Abstract. Conceptual design of TRT – the tokamak with reactor technology [1] is one of the most interesting and ambitious projects in the RF national thermonuclear program. To ensure high performance and compact design of the machine, designers of the electromagnetic system (EMS) have to consider HTS as the only option for high-current winding conductor for the major coils. The electrical joint of high-current cables should be treated as an important element of winding upon which the reliability of a large EMS depends. The major requirements for a high-current electrical joint of HTS cables have been formulated as follows: low ohmic resistance, minimal effect on the current distribution among cable elements, compact design, consistent and relatively simple technology of joint manufacturing and assembly.
The analysis of the international projects concerning HTS join design, the experience gained in the framework of the domestic HTS programs, as well as the main reasons for selection of the present TRT joint concept were presented in paper [2]. Some aspects of the TRT joint test program were also mentioned there. In this paper, the test program is presented with more details: the design of the joint prototypes and the process of sample manufacturing, the test facility and some aspects of the experiments, as well as the test results are given and discussed. The results of sample manufacturing and the tests performed allow us to conclude that the basic concept and the engineering solutions selected for the HTS joints answer the purposes of the TRT EMS project.
Key words: Tokamak with reactor technology (TRT), superconductivity, high-temperature superconductor (HTS), electrical joint, magnet coil
DOI 10.62994/2072-215X.2024.48.57.001
THE CURRENT STATE OF DEVELOPMENT OF POWER SUPERCONDUCTING CABLES
V.S. Vysotsky, Dr. Sc. (Engineering), Deputy Division Head, scientific advisor, JSC VNIIKP, full member of the RF AES
Abstract. This article provides a brief overview of the current state-of-art in the field of power superconducting cables based on high-temperature superconductors (HTS) at the mid of 2024. Materials from the international conferences EUCAS-2023 and MT-28 are used. After quite major advances in the mid-10s, the adoption and installation of HTS cables has slowed down around the world. There are mainly discussions on large projects and installation points where HTS cables can give the greatest effect. The technological readiness level of superconducting cables is very high and they are considered as the pre-commercial products. However, their widespread implementation is hampered by the conservatism of energy companies, which are afraid of introducing new elements, and also by the still high cost of the original high-temperature superconductor, although there has already been a noticeable decrease in the price of superconductors with an increase in their production volume.
Key words: HTS cable, HTS tape, superconducting power cable
INDUSTRY NEWS
85th GENERAL MEETING OF THE ELECTROCABLE ASSOCIATION
S.A. Adjemov, Deputy General Director of the Electrocable Association
WIRE CHINA 2024: THE CABLE INDUSTRY RESULTS AND A LOOK INTO THE FUTURE
R.E. Vasiliev, Cand. Sc. (Engineering), Director for Technical Development of JSC VNIIKP, full member of the RF AES;
A.A. Meshalkin, Leading Specialist for IEA, JSCcl. Trade House of VNIIKP
OPENING OF A NEW WORKSHOP AT THE VLADIMIR CHEMICAL PLANT
E. Kulikova, Press Secretary PAO “VHZ”
THE WORLD'S LONGEST HTS CABLE LINE IS CONNECTED TO THE ST. PETERSBURG ELECTRIC GRID
