Company

ZTR history

ZTR history is inextricably linked with continuous development and growth of the company,  production capacity extension and manufacturing of new types of equipment, mastering of new values of rated power and voltage class of transformers and shunt reactors.

ZTR equipment voltage classes and capacity development history

History
History
 

Milestones

1947
  • Commencement of construction of Zaporozhye transformer factory
1949
  • Production of the first transformer TM – 1000/10
1955
  • Production of the first single-phase transformers rated for voltage 400 kV and power 90 MVA for transmission line of HPP Kuybishevskaya, Moscow
1960–1965
  • Production of series of 250 MVA autotransformers rated for power up to and the transformers up to 400 MVA, 330 kV
1962
  • Production of the first three-phase autotransformer 250 MVA, 500 kV, equipped with in-built on-load tap changer;
  • Production of the first converter transformer 90 MVA for DC transmission line ± 400 kV, Stalingrad – Donets Basin
1966
  • Production of the world-first single-phase autotransformer rated for voltage class 750 kV, 417 MVA, 750/500 kV for experimental transmission line Konakovo–Moscow
1967
  • Production of transformers 206 MVA, 500 kV and autotransformers 167 MVA, 500/220 kV for Aswan hydraulic complex (Egypt)
  • Production of high-capacity power transformer 630 MVA, 220 kV for HPP Krasnoyarskaya (Russia)
1970
  • Production of experimental transformer 210 MVA, 1140 kV for AC transmission line 1200 kV;
  • Production of autotransformer 267 MVA, 500/220 kV equipped with on-load tap changer in 220 kV line
1971
  • Production of transformer rated for 1000 MVA, 330 kV for operation as a unit with generator 800 thsd. kW at CPP Slavyanskaya, (Ukraine)
1972
  • Production of three-phase autotransformer 560 MVA, 330/110 kV for substation “Coventry”, (USA);
  • Production of single-phase autotransformers for industrial transmission lines rated for new voltage class 750 kV: 333 MVA, 750/330 kV and 417 MVA, 750/500 kV
1975
  • Production of the first converter transformer 175 MVA as well as the first smoothing reactor 1200 А, 4 Gn for DC transmission line ±750 kV, Ekibastuz-Centre
1977
  • Production of 100000-th transformer stating from the company startup, namely three-phase transformer 1 000 MVA, 330 kV for CPP Uglegorskaya, (Ukraine);
  • Development and introduction of unified series of single-phase on-load tap changers for the main network transformers rated for power 63–250 MVA;
  • Production of super-power three-phase transformer 1250 MVA, 330 kV for NPP Uzhnoukrainskaya
1978
  • Production of autotransformer 667 MVA, 1150/500 kV;
  • Production of single-phase step-up transformers 417 MVA, 750 kV for 1000 MW units at NPP Leningradskaya;
  • Production of single-phase step-up transformers 533 MVA, 500 kV (three-phase bank capacity is 1 600 MVA) purposed for operation in unit with two generators rated for 640 MW each, HPP Sayano-Shushenskaya (Russia), as well as for thermal power plants – with generators 1 200 MW
1980
  • Production of transformer rated for power 1 000 MVA, 500 kV, purposed for operation in unit 800 MW at CPP Ryazanskaya, (Russia)
1982–1985
  • Development of equipment complex for DC transmission line 1500 kV: converter transformers 320 MVA rated for voltage ±400 and ±750 kV, equipped with power winding 500 kV
1985
  • Production of single-phase unit transformer 417 MVA, 1150 kV
1987–1990
  • Production and successful testing as for short-circuit stability of step-up transformers: single-phase unit 333 MVA, 750 kV and three-phase unit 666 MVA, 500 kV
1988
  • ZTR reached a historical maximum of annual production output exceeding the figure of 70 000 MVA
1995
  • Implementation of quality management system corresponding to ISO 9001 standard
1996
  • Production of single-phase shunt reactors 110 MVAr for transmission line 750 kV, (Ukraine), as well as shunt reactors 33.3 MVAr, 400 and 500 kV (Egypt)
1997
  • Production of the first three-phase controlled shunt reactor 25 MVAr, 110 kV;
1999
  • Single-phase transformer 62,5 MVA, 163 kV and three-phase transformer 63 MVA, 154 kV were successfully tested for dynamic stability in test center KEMA (the Netherlands)
2000
  • Development and production of control and monitoring systems;
  • Production of single-phase autotransformer 500 MVA, 765/345 kV with voltage regulation in 345 kV line, and of shunt reactor 120 MVAr, 800 kV
2001
  • Production of three-phase controlled reactor 100 MVAr, 220 kV of fundamentally new design;
  • Production of the first single-phase autotransformers 267 MVA, 400/230 kV, having transverse regulation in 220 kV line for Bulgaria
2002
  • Production and successful commissioning of the controlled shunt reactor rated for power 180 MVAr, 330 kV
2003
  • Setting-up of representative office in Moscow, Russia
2005
  • Setting-up of representative office in Almaty (Kazakhstan)
2007
  • Production of phase-shifting transformer 400 MVA, 220 kV
2009
  • Resetification of quality management system in correspondence with ISO 9001:2008
2011
  • ZTR management system was certified on conformity with ISO 14001:2004 and OHSAS 18001:2007 standards
2012
  • ZTR welding production was certified for compliance with ISO 3834-2:2005 standard
2005–2012
  • Large-scale modernization of the production and testing facilities was carried out. The volume of investments in renovation exceeded $80 mil.;
  • ZTR entered the new markets of Americas, Western Europe, Asia and Africa: Venezuela, USA, Spain, India, Guatemala

2013

  • ZTR supplied transformer equipment for geothermal power stations in Kenya, which became the 86-th country in reference list of the company
2014
  • ZTR test laboratory was certified on conformity with DSTU ISO/IEC 17025:2006 (ISO/IEC 17025:2005) “General Requirements to Competence of Testing and Calibration Laboratories”.