Energoaparatura. 

Energoaparatura SA operates in construction and assembly services business in Poland. The company constructs HV, MV, and LV substations and cable lines; and repairs and modernizes HV, MV, and LV substations and switching stations. It offers transformer voltage regulators, automatic switching on the power reserve automatically, central emergency signal, non-inductive resistors, circuit breaker backup automation systems, differential protection of busbars, transformer tap switch position indicator, relays, communication converters, and service cases. The company also provides mining equipment, power equipment, I&C works, power cables, and prefabrication. It serves electricity, electrical power engineering, control and measurement instrument, automation, and mining sectors. The company was founded in 1955 and is headquartered in Katowice, Poland.