Converter Substation

converter substation

[kən′vərd·ər ′səb‚stā·shən]
An electric power substation whose main function is the conversion of power from ac to dc, and vice versa.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Converter Substation


an electric substation for the conversion of electric current—primarily with respect to frequency or the number of phases. It can be used to convert a three-phase current of a commercial frequency generated by an electric power plant into a direct current to feed, for example, high-power electrolytic equipment, variable-speed electric drives for machine tools and rolling mills, galvanic baths, and contact systems of electrified transport. Conversion to an alternating current of a frequency that is higher or lower than the commercial frequency is used for supplying power to such devices as variable-speed AC electric drives, induction heating equipment, and induction furnaces. Conversion to a single-phase alternating current is done to supply power to, for example, high-capacity arc furnaces and single-phase contact systems. In DC power transmission lines, converter substations are used to convert a three-phase current to a direct current (rectification) at the sending end of the line and to achieve a reverse conversion (inversion) at the receiving end of the line. In addition, inversion is used when a DC source, such as a magnetohydrodynamic generator or a storage battery, must be connected to an AC distribution system.

Both rotating and static converters are used in converter substations, but the rotating equipment—such as motor-generator units or single-armature converters—is being generally replaced by the more economical and more reliable static rectifier-type converters. A high-capacity converter substation includes AC distribution equipment, a machine room with converting equipment, distribution equipment for direct (rectified) current, cooling and ventilating systems, and auxiliary equipment.


Kaganov, I. L. Promyshlennaia elektronika. Moscow, 1968.
Semchinov, A. M. Rtutno-preobrazovatel’nye i poluprovodnikovye podstantsii. Leningrad, 1968.
Rivkin, G. A. Preobrazovatel’nye ustroistva. Moscow, 1970.


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
As part of the project, the Indian Kalpataru Power Transmission Ltd will build a Tajik section of an AC power line of 500 kV and the Swedish ABB will build a converter substation in Sangtud region, according to the Ministry of Energy and Water Resources of Tajikistan.
Shu, "A traction three-phase to single-phase cascade converter substation in an advanced traction power supply system," Energies, vol.
To implement the project on the territory of the republic, it is required to build a 500 kW power line from the Datka substation to Khujand, a converter substation with a capacity of 1,300 mW in Sangtuda, a high-voltage direct current line from Sangtuda to Kabul and Peshawar.
"The French companies are active in the installation, operation, testing and maintenance of the converter substations and high voltage substations," the minister pointed out.
It would then go underground to four converter substations, all within the Wilton complex.
The Energy Ministry noted that at the first stage it is planned to begin construction of converter substations in Tajikistan and Pakistan.