Specification. Voltages for a.c. transmission and distribution systems

The following paper recounts the loss of supply and subsequent restoration of the Bay of Plenty Electric Power Board' s sub transmission and distribution systems following the advent of the Edgecumbe earthquake of 2 March 1987. The paper details the effects on the Board's customers and staff, restoration procedures, and matters relating to the restoration of supply and repair of the distribution system. The emphasis is more on the operational and organisational aspects of the event, rather than being a report of structural damage and remedial repairs. Technical aspects of this sort are dealt with in greater detail by other organisations.

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Modern trends of the world market of electrical equipment

Economics. Finances. Law ◽

10.37634/efp.2021.6(1).1 ◽

2021 ◽

pp. 5-9

Author(s):

Tetiana AVERIKHINA ◽

Maryna BURIACHENKO ◽

Valeriia VASYLIEVA

Keyword(s):

Renewable Energy ◽

Smart Grid ◽

Distribution System ◽

Distribution Systems ◽

Renewable Energy Sources ◽

Electrical Equipment ◽

World Market ◽

Global Market ◽

The World ◽

Transmission And Distribution

Introduction. The world market of electrical equipment is developing very fast. There are many companies in the market that sell electrical equipment, among them there are companies that occupy leading positions. Today, the world market of energy engineering is estimated at 87 billion dollars per year, based on the structural dynamics of growth, the annual volume can reach 110-115 billion dollars per year until 2025. The global market for energy equipment service in 2020 is 31.7 billion dollars, including: LTSA (long-term service) 47 %, modernization – 20 %, field service – 24 %, engineering – 9 %. The purpose of the paper is to analyze the world market of electrical equipment, determine sales, business growth. The list of leaders in electrical equipment on the world market is considered. Results. The main trends in the world today are the following areas: development of DC transmission system, cable lines for underwater laying and cable for connections of renewable energy sources to reduce energy transmission costs through the capabilities of existing transmission lines, through network voltages and innovative design solutions and installation methods. The amendment for these trends shows us the world leaders in the electrical market, such as Legrand, Schneider Electric, ABB, Siemens, DEKraft, SASSIN, EKF, etc., R&D costs are 3.5–5 % of profits (over 60 years). Thus, we can conclude that the global market for cable networks is developing rapidly. This market is expected to grow in the development of smart grid technologies, renewable energy generation and initiatives to modernize the transmission and distribution system. Conclusion. That the global cable ladder market is developing rapidly. This market is expected to grow in the development of smart grid technologies, renewable energy cultivation and government initiatives to modernize transmission and distribution systems.

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