CHEAZ Group History

During Soviet five-year plans CHEAZ supplied relay protection devices to almost all enterprises of energy sector in the Soviet Union. Nowadays as one of the leading panel builders in Russia, CHEAZ provides equipment for reliable performance of oil and gas sector both in our country and abroad.

• In 1888 on the basis of merchant workshops in Riga Russian-Baltic Electro technical Plant is founded (1898 - UNION electrical company, 1904 - German company AEG, 1905 - Russian Universal Electrical Company).

  1888

• In 1915 Universal Electrical Company is relocated to Kharkov. In 1917 it is named Electrosila – 1 plant. In 1925 a state-owned enterprise Kharkov Electromechanical Plant is formed.

  1915

• Several workshops and a part of the staff from Kharkov Electromechanical Plant (477 employees, among them 445 highly qualified workers) are evacuated to Cheboksary. Here, Special Equipment Plant No. 654 is founded. On December 8, 1941 the factory produces and sends to the front the first products for tanks, airplanes and navy.

  1941

• Beginning of development of relay protection and automation products (RPA). The foundations of the production direction were laid, which to this day is one of the traditional ones for CHEAZ.

  1943

• The Leningrad plant "Elektrik", evacuated to Cheboksary, became part of CHEAZ. Revision of technical documentation, introducing into production the range of installation products of the evacuated enterprise.

  1942

• A team of design engineers headed by A.M. Bresler develops a KRS-121 set, the first relay for HV transmission lines protection; the relay is known as Bresler relay.

  1944

• For successful fulfillment of the government's task to equip aviation and tank industry the plant is awarded the Order of the Red Banner of Labor.

  1944

• Dozens of new, more advanced electrical equipment have been mastered. Launch of serial production of carbon regulators.

  1945 - 1950

• The first complete device, the "progenitor" of modern low-voltage complete devices (LVDs), was delivered to the Leningrad metro.
  In 1951-1958, more than 700 units of new magnetic stations, distribution boards and other complex devices were developed, which became an important stage in the development of the product line. A large number of control stations are manufactured to individual orders for delivery to metallurgical plants, hydroelectric power stations, etc.

  1950 - 1960

• The range of relay protection systems has been expanded. A significant technical victory was the development of a directional protection panel with high-frequency blocking, which became the starting point in the history of complete relay protection and automation devices. Electromagnetic relays for differential protection of power transformers have been developed, which due to their simplicity and reliability, are still being produced today.

  1950 - 1960

• Entering the international arena: in 1956, the plant supplied new products of tropical type for the Bhilai Metallurgical Plant being under construction in India.

  1956

• Setup for production of adjustable drives becomes the basis for the development of a new product line of CHEAZ - drive technology.

  1960 - 1970

• Equipment for Kuybyshev Hydroelectric Station (Kuybyshev GES) is developed and produced and Kuybyshev - Moscow TL is built. In 1964 CHEAZ chief engineer A. Buyvolov within USSR Ministry of Energy group (total 18 people) is awarded the Lenin Prize. The development of new unique devices and protection panels for these facilities gave impetus to the development of new types of electrical devices for remote protection of power lines.

  1960 - 1970

• On the basis of CHEAZ the Electrotechnical Research Institute (CHETNII) is founded; later it is renamed into VNIIR (All-Union Scientific Research Institute of Relay Engineering). Since that time, the history of the development of relay protection in Russia has been inextricably linked with this enterprise.

  1961

• Development of the production of relay protection and automation on the basis of semiconductor devices; development of new types of protection.
  1962-63 - a new page in the history of the development of low-voltage switchboards - focus on the supply of large-block complete panels. Their use made enabled to speed up the commissioning of launch facilities and reduced the cost of installation.

  1960 - 1970

• A set of relay protection devices was supplied to the Aswan hydroelectric power station in Egypt. Many of the devices first used at this facility were successfully used in Russian power systems over the next decades.

  1960-1970

• In 1971 the plant is awarded the Order of the October Revolution for early execution of the five-year plan and successful development of new low-voltage products.

  1970 - 1990

• Since 1986, the Ishleysky Plant of High-Voltage Equipment became a part of CHEAZ Group, and began to develop the range of low-voltage complete devices, while maintaining the traditional direction of production.
  Development of production of devices based on microelectronic hardware components.

  1986

• The beginning of the history of development of digital relay protection devices: since 2004, SKB RZA CHEAZ began developing microprocessor relay protection devices of the BEMP series.

  2004

• Entering the market of block-modular designs of low-voltage complete devices (LVDs). Beginning of supplies of LVDs to nuclear power plants (NPP).

  2001 - 2005

• New types of electrical equipment have been mastered: complete transformer substations (CTS) and switchgears with a voltage of 6 (10) kV. The development and production of high-voltage equipment continues: prefabricated one-way service chambers, integrated switchgears. The company's product range now includes control stations for submersible pumps for oil production, sets of electrical equipment for gas pumping units, etc.

  2001 - 2005

• Large export shipments of equipment for Yusufiyah TPP (Iran) and OBRA TPP (India). Successful entry into the market of block-modular complete transformer substations of full factory readiness.

  2006 - 2010

• The production was largely reconstructed, funds were allocated for the development of new products; the enterprise won a federal grant for R&D of a high-voltage variable-frequency electric drive (HFFD), which subsequently made it possible to create a full line of HFFD and soft start devices.

  2011-2015

• In 2013 a Resource Centre is formed to train the workforce for the needs of the factory.

  2013

• In 2014 the Russian Maritime Register for Shipping (RMRS) certifies 6(10) kV switchgear for application in ships and floating platforms.

  2014

• In 2015 the Department of electrotechnical equipment and systems is founded in the Chuvash State University.

  2015

• Products in marine execution are supplied to three nuclear ice-breakers (known as project 22220) – Arktika, Sibir and Ural, to LSP-2 ice-resistant fixed platform in Filanovsky oilfield and other sites.

  2016

• Innovative enterprise management system is formed on the basis of engineering complexes in different business areas: Relay Protection, Shield Engineering complex, Recont Engineering complex, Drives Technologies.

  2016 - 2017

• CHEAZ signs the agreement with Skolkovo Foundation about creation of a partnership center in Skolkovo.

  2017

• The relay protection systems of BEMP RU series manufactured by CHEAZ provide reliable power supply to the stadiums of the 2018 FIFA World Cup.

  2018

• Within the framework of the cooperation agreement with HYUNDAI ELECTRIC low-voltage circuit breakers are produced. Our own solution made it possible to improve the technical characteristics of the manufactured equipment and reduce its cost.

  2017

• Merge of the design departments of CHEAZ Group and IZVA LLC.

  2018

• CHEAZ was involved in the National Project “Labor Productivity and Employment Support”.

  2019

• Beginning of cooperation with DPR enterprises: joint construction of the first modular substation for the city of Mariupol.

  2022

• The explosion-proof electrical equipment department has introduced explosion-proof control cabinets and boards into production.

  2020

• The first in the history of Chuvashia "Innovation Promotion Fund" was created on the basis of CHEAZ Group

  2021

• CHEAZ joined the consortium in the field of naval electrical engineering and shipboard electrical installation works.

  2023

• CHEAZ became part of the RUSEL electrical engineering holding.

  2023