PKP Energetyka S.A. - References

Tracks Overhead traction linesPower Automation Civil engineering facilities Buildings and platforms DesignRemaining construction work Telecommunications QUALITY, SAFETY, ENGAGEMENT, EFFICIENCY

Programme - Power Supply System Upgrades Aims of programme: adapt railway lines for use by high speed trains (160÷220 km/h), increase railway line throughput, introduce higher power locomotives into service, reduce the failure frequency and increasing the quality of electric power. The programme has involved constructing or upgrading over 100 power facilities, including: construction of 25 new 110 kV traction substations, construction of around 120 km of 110 kV power lines (cable and overhead), acquisition of the right to dispose of land for construction purposes for 5,500 plots, 260 administrative decisions obtained. Programme implementation period: 2013 – 2016 Scope of programme: Value of programme: over 1bn PLN QUALITY, SAFETY, ENGAGEMENT, EFFICIENCY

Częstochowa – Construction of Cokeworks transformer/switching station Preparing comprehensive design, construction and working documentation: cokeworks transformer/switching station, 110kV Aniołów-Guardian line along with the Optical Protection Ground Wire (OPGW) route and all-dielectric self-supporting (ADSS) fibre optic connection. Construction of Cokeworks transformer/switching station: all general construction work, delivery and installation of primary 110 kV apparatus in the H5 system, delivery and installation of secondary circuits, Measuring, testing and commissioning of devices and the station. Reconstruction of 110 kV line with OPGW fibre optic route and ADSS fibre optic connection between neighbouring stations. Scope of work: Częstochowa Total value of contract: 12.76m PLN QUALITY, SAFETY, ENGAGEMENT, EFFICIENCY

Tucznawa – preparation of documentation and construction work Preparation of comprehensive design, construction and working documentation for provisional power supply in Dąbrowa Górnicza economic zone. Implementation based on approved documentation of construction work involving: construction of a 110 kV bay (primary and secondary circuits), construction of a 110 kV cable line, construction of a temporary transformer station and installation of 25 MVA transformer, installation of a 20 kV five-bay switching station, creating medium voltage cable connections, construction of a fibre optic line, general construction work. Preparing technical and on-site legal documentation for construction of GPZ 110/20kV Tucznawa Strefa Scope of work: Tucznawa Total value of contract: 3.48m PLN QUALITY, SAFETY, ENGAGEMENT, EFFICIENCY

110 kV switchgear bay - secondary circuits cont. Lumel N10 digital meter as local and remote meter of network parameters for automatic control of windfarm reactive power Micom P740 SI and BFP protection Cable distribution box with field 7 equipment Power measurement Basic system: LandisGyr ZMQ202 meter Backup system: LandisGyr ZMQ202 meter Data transmission from the communication module built into the ZMQ202 meter and CU-B+ communication adapter Telemechanics Extending the base model to include a PTS-718 serial communication package for connecting the N10 meter and a KSR-16 local field signaller; PTS- 728 serial communication package for connecting 7SD610 protection, Micom P439, Micom P740 Backup system: LandisGyr ZMQ202 meter Local station equipped with a PC, monitor, mouse and keyboard Złotoryja – Upgrade of 110/20 kV station 110 kV switchgear bay - primary circuits Extension of bus bar in section kV Alstom GL 311F1/403/P switch - 1 Hapam SGF 123n E disconnector with earthing blade - 2 ABB PVA 123 combined transformer - 3 Varisil HI 96 TC surge arrester with discharge counter - 3 Zapel C4 550 II Ceramic post insulator AFL mm² on-site busing AFL mm² bus bar busing Replacement of bus bridge insulators with LPZ 75/27 – kV switchgear bay - secondary circuits Siemens 7SD610 digital relay as the line's basic differential protection Schneider P439 digital relay as the backup distance protection with island operation protection and field control functions Mikronika SO52V11 control as power quality analyser The upgrade of Złotoryja covered the following: Złotoryja Total value of contract: 1.2m PLN QUALITY, SAFETY, ENGAGEMENT, EFFICIENCY

connecting the new transformer units at SE Żukowice with the primary and secondary circuits, transferring the existing Automatic Voltage Control System to the new technological process building along with its fittings, constructing the station measuring systems in such a way as to ensure maximum use of the existing facilities, installing new safety measures for the 220 kV switchgear bays (for lines, transformers, bus connectors) and the 110 kV AT1 and AT2 switchgear bays for station systems (incl. Reserve Central Signalling System, synchronisation of 220 kV switching station, remote service links, automatic transfer switch), use of the Control and Surveillance System while ensuring maximum use of the existing appliances (incl. bay and central controls), Upgrade and construction of internal roads, construction of new fencing, creation of new water and sanitary pipe systems on the premises of the station, extension of the rain drainage system, construction of the Technical Protection System for the station (intrusion detection system (IDS), CCTV, Access Control) and lighting for the 220 kV switching station. Żukowice – Modernisation of Żukowice 220/110 kV station – work in progress The order includes all legal and formal requirements, design and executive matters connected with upgrade of the Żukowice SE 220/110 kV station. Scope of work: replacement of the foundations and supporting constructions of the 220 kV switching station (including the crossbeams of the autotransformer gates, replacement of worn out 220 kV switchgear apparatus (disconnectors, current transformers) replacement of supporting constructions for 220 kV switchgear apparatus (disconnectors, current transformers, voltage transformers, surge arresters) replacement of foundations of supporting constructions for 220 kV switchgear apparatus (on/off switches, disconnectors, current transformers, voltage transformers, surge arresters) construction of a technological process building, pumping station building with fire prevention water tanks, and power aggregate container, construction of auxiliary AC and DC located in the new technological process building, dismantling of the existing 220/110 kV autotransformers, construction of new 220/110 kV autotransformer stations adapted to house 275 MVA transformer units, Scope of work: Żukowice Total value of contract: 24.58m PLN QUALITY, SAFETY, ENGAGEMENT, EFFICIENCY

Task 2 - Construction of a capacitive reactive power compensation system for the Kleszczów 110kV grid: 1. Kleszczów transformer/switching station building development of a regular reactance shunt reactor at the Kleszczów transformer/switching station 110/15kV electric power plant, reconstruction and modernisation of fencing at Kleszczów transformer/switching station premises, upgrade of the telemechanics system of the local grid. 2. Bogumiłów transformer/switching station building development of a regular reactance shunt reactor at the Bogumiłów transformer/switching station 110/30kV electric power plant, installation of air conditioning in the station. Task 3 – Construction of a disconnector on the 110kV line in Piaski: erection of a 110 kV disconnector on the existing overhead cable pylon no. 1 in Piaski, creating a fibre optic connection in the existing primary piping between the 110kV EBE switchgear and the pylon station Piaski. Kleszczów – Upgrade of facilities of the 110 kV Kleszczów electricity grid – work in progress Task 1 - Upgrade of the Kleszczów 110/15kV transformer/switching station: Upgrade of the 15kV switchroom in the existing station building to its final state reconstruction of the existing bays of the15kV switchroom Upgrade of the station's control and monitoring system Upgrade of the side security system of the 110kV transformers, along with connection to the control and monitoring system, Upgrade of the electric power measuring systems for the110kV line – field 1, reconstruction of the completed pull-down resistor station AWP 40/15 to 15kV, Upgrade of the fire alarm system, extension of the drainage system for the station premises, Upgrade of the 220V and 24V direct current and 230V AC guaranteed voltage, installation of air conditioning in the Kleszczów transformer/switching station. Scope of work: Kleszczów Total value of contract: 9.89m PLN QUALITY, SAFETY, ENGAGEMENT, EFFICIENCY