COMPANY PROFILE. Ljubljana, Slovenia

Transcription

1 COMPANY PROFILE

2 COMPANY PROFILE Company name: Headquarters: KORONA d.d. Cesta v Mestni log 88A 1000 EU Telephone: Fax: korona@korona.si Web site: Managing Director: Boštjan Strmčnik, Ph.D.E.E. Company type: Joint-stock Co. Employees: 30 Quality Assurance System ISO 9001:2008 ISO/IEC 27001:2013 Europe

3 FIELD OF ACTIVITIES Engineering & Consulting Energy, Industry, Infrastructure & Transportation Home & Abroad Since the company s inception in 1988, Korona has carried out projects encompassing a wide range of engineering and consulting services: o Research and Studies o Project Documentation o Power System Solutions o Supervision and Control Systems o Engineering Korona expertise and execution excellence is focused on: o Power plants (Hydro, Thermal & Gas) o Transmission and Distribution Substations o Supervisory and Control Facilities o Industrial Power Systems o LPG and Oil Warehouses o Renewables

4 Research and Studies o Concept Development o Assessment of Development Strategies o Energy Studies o Techno Economic Studies Project Documentation o Investment Documentation - Pre-feasibility Study - Preliminary Design - Basic Design - Feasibility Study - Environmental Impact Assessment - Safety Reports. o Tender documentation o Detail Design o As Build Design o Administration Procedures o Acquisition of Approvals and Permits Power System Solutions o Information systems solutions in WEB environment for - Generation - Distribution - Transmission - Market Operator - Market Regulator Supervision and Control Systems o Automatization systems for - Power Plant - Gas Desulphurisation Plant - Watercleaning Plant - LPG Storehouse Engineering Project development in SE Europe

5 GATEWAY TO POWER AND ENERGY PROJECTS KORONA Power engineering, Inc. is an independent engineering company located in Slovenia, European Union. We provide power companies with a comprehensive range of high-quality and timely engineering services that embrace all elements of the power supply chain. Our skills in power engineering and expertise in consultancy services are drawn from reference projects in power and energy. Our professional engineers engaged in power generation, transmission, distribution and software applications are able to execute projects economically and technically suitable for our investors needs. In the field of energy we gained our experience working in construction, reconstruction and automation of power plants. Over the years our contribution to the successful operation of domestic electricity system is reflected by the increasing demand of our services. With Korona on board, you can be sure your project will reflect the energy, enthusiasm and expertise necessary for success. Please find herewith presentations of our most significant projects, which we executed among several others over the years of successful business operations.

6 AVČE PUMPED STORAGE HYDRO POWER PLANT Elaboration of Project and Technical Documentation INVESTOR Soške elektrarne Nova Gorica Erjavčeva 20, 5000 Nova Gorica, Slovenia phone: Contact: Vladimir Gabrijelčič vladimir.gabrijelcic@seng.si SUPERVISION HSE Invest, PE Nova Gorica, Slovenia Contact: Miran Komel miran.komel@hse-invest.si

7 SCOPE OF WORK Avče Pumped Storage Plant is the first power plant of its kind in Slovenia and represents the largest investment in Slovenian energy sector at the moment. According to the project plan of the Investor Soške Elektrarne Nova Gorica d.o.o., the commissioning of the plant is foreseen for the end of year The Avče PSP is located on the Soča River, approximately 24 km north of Nova Gorica and 2,3 km upstreams of Ajba dam. The Ajba reservoir serves for downstream HPP Plave I and II and also as lower reservoir of Avče PSP. The upper reservoir is located in a natural depression on the hilltop near to the village Kanalski vrh, with a reservoir confining a water volume of some 2,2 mio m 3. A 700 m long headrace tunnel, running underneath the ridge of Avški Kuk, and 1,3 km long steel penstock connect the reservoir with the powerhouse, located on the left bank of the Soča River. The maximum head of 521 m and the installed discharge of 40 m 3 /s enable the maximum power of 185 MW in turbine mode. The maximum power in pump mode is 180 MW at discharge of 32 m 3 /s. During the off-load hours, the power plant will operate in pump/motor mode consuming the energy for pumping the water into the upper reservoir. During the peak-load hours the accumulated water will be used for production of electrical energy. The planned yearly consumption and production amounts to 563 GWh and 426 GWh, respectively. In spite of higher consumption compared to production, the price difference will result in high profitability of the power plant. Besides covering a significant part of the daily peak-load in the Slovenian power system, Avče PSP will also provide additional services, such as system reserve, frequency control and voltage control. In the frame of Avče PSP project, the Consortium of Korona Power Engineering (Ljubljana) and COLENCO Power Engineering Ltd. (Baden, Switzerland) elaborated the following documentation: PROJECT DOCUMENTATION: TECHNICAL DOCUMENTATION: - Licensing Design - As-Built Documentation - Tender Documents - Operation and Maintenance Manuals - Detailed Design KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

8 AVČE PUMPED STORAGE HYDRO POWER PLANT Control System for Unit and Auxilliary Systems CONTRACTOR Consortium RUDIS - leader/mitsubishi/sumitomo Trg revolucije 25b, 1420 Trbovlje, Slovenia phone: Contact: Vojko Rak vojko.rak@rudis.si

9 SCOPE OF WORK For the new Avče PSP Korona designed, assembled and put into operation a Control System for the unit (Unit Controller) and for auxiliary systems (drainage, first filling, cooling water, oil purification system) including MCC equipment for the mentioned systems. Control System is integrated in overall power plant system and connected to the control center in Nova Gorica what enables remote controlled operation of HPP. Producer of hardware and system software is SIEMENS, for Unit Controller redundant SIEMENS AS 417H is used and for implementation of Control System SIEMENS PCS7 system is used. Beside acquisition of the process data, visualization of data on a touch screen and archiving of data Control System performs also the following functions: start and stop of the unit in pump mode, pump compensator mode, generator mode and generator compensator mode, direct transition from pump to generator mode and opposite, control of active (ALR) and reactive power or grid voltage (AVQC) of the unit. Control System also takes care for starting and stopping pump/turbine and motor/generator auxiliary equipment (oil pumps, water pumps, strainers, blowers, valves, heaters ). Auxiliary systems cover automatic drainage system with emergency operation function, cooling water supply with reserve cooling water system from penstock, automatic first filling procedure for first filling of the penstock. KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

10 HIDRO POWER PLANT GHAZI BAROTHA, PAKISTAN Distributed Control System CONTRACTOR ABB d.o.o. Koprska 92, 1000 phone:

11 SCOPE OF WORK The Ghazi Barotha hydroelectric power station in Pakistan is named after the two towns it passes through, "Ghazi" and "Barotha". It diverts the water of Indus River into a 51.9 km concrete-lined channel, the longest in world, which is fed to a 1,450 MW powerhouse in Barotha. A barrage is built downstream of the Tarbela Dam, which diverts water into this channel. Power is generated by five units, each with a 290 MW capacity. For the new Ghazi Barotha HPP Korona designed and put into operation following parts of distributed control system (S/W logic and SCADA system): - Head Regulator Gates (8), responsible to control water level/water flow at the beginning of the 52 km long power channel - Standard Gates (20) / Undersluice Gates (8), responsible to control water level in the barrage (HPP accumulation) and for cleaning barrage in front of Head Regulator Gates - Tail Regulator Gates (4), Responsible for protecting the power channel by keeping constant (as much as possible) water level in front of the gates - Supervision of Diesel Generators (Power house & barrage) - MV & LV system, automatic switching sequences for MV switchyard (Power house & barrage) ABB AC 450 controllers with local and distributed I/O units and AS 500 operator station were used for implementation of DCS System. KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

12 Sv. PETKA HYDRO POWER PLANT Design, Engineering services, Equipment supply INVESTOR ELEM Elektrostopanstvo na Makedonija Skopje, Republic of Macedonia CONTRACTOR RIKO, d.o.o, Bizjanova 2,

13 SCOPE OF WORK HPPP Sveta Petka is a new power plant, located near Skopje, the capital city of the Republic of Macedonia, on the Treska River. It consists of 64 m high concrete arch dam with associated facilities and power plant with installed capacity of 36,4 MW and average annual generation of 66 GWh. HPP Sveta Petka is designed to be a unmanned power plant. The works comprise the main design, construction, delivery, installation, testing and commissioning of the power plant, on the turn key basis, as well as financing of the project. The supply and installation of equipment started in 2009, commissioning of the plant was finished in Main electrical equipment was installed between 2011 and Commissioning of all systems in order to start the power plant from SCADA was completed in July 2012, official opening of the power plant was held on 1 st of August The main contractor is RIKO d.d., Slovenia, with Korona as their sub-supplier undertaking the following scope of works: - complete design services - technical coordination of mechanical and electrical equipment - electrical equipment supply and commissioning KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

14 DETAILED DESCRIPTION Detailed description of the supplied and installed equipment: 1- Two Step-up transformers (115/10,5 kv; 20 MVA). Transformers are oil immersed and forced cooled. 2- Generator Voltage (10,5 kv) equipment consisting two neutral point cubicles and two measurement and breaking cubicles between generators and step-up transformers kv switchyard consisting of two transformer bays, two OHL bays and one measurement bay. 110 kv switchgear is placed on the concrete plate above the tailrace water channel with very sophisticated and complex design and erection of earthing system. 4- Control system of the power plant including two unit controllers, one auxiliary controller, one 110 kv switchyard controller with local SCADA on each controller and master SCADA running on servers at the Control room of the HPP. Power plant is fully automated due to the demand of the client to be unmanned facility, operated from the regional centre at HPP Kozjak. 5- Cascade control system for regulating three power plants: HPP Kozjak, HPP Sveta Petka and HPP Matka. Cascade software with local SCADA and all equipment is installed at HPP Kozjak. Both HPP Kozjak and HPP Sveta Petka can controlled from local SCADA of Cascade software of from National Dispatch Centre in Skopje, owned by state s TSO MEPSO. This Cascade software is first of a kind installed and operating in Republic of Macedonia. KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

15 6- Protection system of the entire power plant consisting two generator and transformer protection, 110 kv OHL lines protection and 35 kv lines and transformers protection. Scope of supply and services included supply of equipment, cubicles, protection coordination studies and commissioning of protection system kv switchgear for auxiliary power supply with combined 35 kv cable and OHL connection to the existing S/S in length of 2 km. 8- Auxiliary transformers (3x630 kva) with complete auxiliary power supply and cabling to all consumers of the HPP, consisting of two 220 VDC VRLA batteries sets, two chargers, two inverter systems, fully automated AC and DC distributions with diesel generating set equipped with season tank and telecommunications power supply system. 9- Earthing and lightning system of the entire plant, concrete dam, and auxiliary facilities with very complex and sophisticated calculation and design models and erection process due to the rocky mountainous and dry terrain. 10- Lighting and small power of the entire plant, concrete dam, access roads and all other auxiliary facilities. 11- Supply and installation of cable trays for all signalling and power cables inside the power house building, on the dam structure and all other facilities. KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

16 Telecommunication and information system for alarm data from HPP Golica INVESTOR Elektro Slovenija d.o.o. (ELES), Hajdrihova 2, phone: fax: Contact: Igor Loborec igor.loborec@eles.si 2010

17 SCOPE OF WORK In HPP Golica (KW Koralpe) alarm data about the dam Soboth are capturing with RTU (Remote Terminal Unit) devices which conduct the entire plant. For maintenance of these facilities is responsible KELAG. Administration of the Republic of Slovenia for Civil Protection and Disaster Relief (hereinafter referred to as ACPDR), the regional office in Slovenj Gradec and Maribor because of protection reasons needs the data and alarms about water level in accumulation basin, the quantity of leaking water, the water flow on border of river Bistrica. KELAG the current alarm and measurement data also send in Slovenia via ELES s telecommunication network. The scope of the project was reconstruction of the Slovenian side of the telecommunication and information system for alarm data from HPP Golica. The new telecommunication and control equipment are built in ACDPR Slovenj Gradec and Maribor. The new equipment provides: Compatibility with the existing telecommunications network of ELES, High reliability and availability performance, Remote monitoring and management, and diagnostics, Low power consumption and space. The whole system is divided into two parts, the telecommunications equipment and RTU equipment with a video terminal with SCADA system. In the ACDPR regional office in Slovenj Gradec a new NG SDH network element, the video terminal operator and two independent RTU s were installed. Each of RTU s independently communicated via two separate communication channels to the data source in HPP Golica. Communication with a source of data is carried out according to the protocol IEC In the ACDPR regional office in Maribor a new NG SDH network element, the video terminal operator and one RTU with two serial communication interface was installed. The new telecommunication and information system with SCADA system now assure more reliable system for alarm and measurement information about the water level in accumulation basin, the quantity of leaking water and the water flow of river Bistrica. KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

18 HYDRO POWER PLANT DOBLAR 2 and PLAVE2 Automation and remote control INVESTOR Soske elektrarne Nova Gorica Erjavceva 20, 5000 Nova Gorica, Slovenija phone: fax: Contact: Vladimir GABRIJELCIC vladimir.gabrijelcic@seng.si 2002

19 SCOPE OF WORK For the new 40 MW unit of HPP Doblar and new MW unit of HPP Plave Korona designed, assembled and put into operation a Control System (in further text System). The System is connected to the control center in Nova Gorica what enables remote controlled operation of HPP. Producer of hardware and system software is VA TECH SAT Vienna. Beside acquisition of the process data, visualization of data on a touch screen and archiving of data the System performs also the following functions: start and stop of the unit, control of active and reactive power of the unit, control of the switchyard, thermal control and protection of the generator and automatic change over switching of auxiliary power supply sources. KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

20 PHOTOVOLTAIC POWER PLANT GUT&PET Installation of turnkey power plant INVESTOR Gut&Pet d.o.o. Betajnova 15, 1360 Vrhnika, Slovenia phone: fax: Contact: Peter Gutnik gut.pet@siol.net 2010

21 SCOPE OF WORKS Solar photovoltaic power plant Gut & Pet is a turnkey solution, which means that we took the whole project organization and realized it hand in hand with investor s idea. In addition to building the PV power plant itself, we obtained all of the permits and approvals that are needed in the case of photovoltaic power plant connection to the public distribution network. We arranged all the necessary documentation for the investor and handed him the operating instructions. We have also provided a professional maintenance support for the power plant. Solar photovoltaic power plant Gut & Pet is grid connected and acts as a distributed energy PV source. All produced electrical energy is fed into the distribution system network. The main units of the system are: Photovoltaic generator in form of polycrystalline silicon solar modules, metal supporting structure on the roofs of two manufacturing facilities, inverters, protective devices and switching components with wiring, control devices, monitoring site with electricity meter. PV POWER PLANT DATA: INSTALLED POWER: MODULE TYPE: INVERTER TYPE: PLANNED YEARLY YIELD: kwp BISOL 233 Wp SMA Sunny Mini Central TL 215 MWh OPERATION PRINCIPLE: The main component of PV power plant are photovoltaic modules, which are made of polycrystalline silicon cells. These are using photoelectric effect that converts solar energy into electricity. Photovoltaic generator (PV modules) feeds the power into the grid trough the inverter that converts DC voltage from the modules, into the AC voltage that is suitable for connection to the distribution network. Monitoring and controlling of the PV power plant operation also plays an important role in the system. Photovoltaic power plant system should therefore contain a central unit for data collection and control of the system operation. Other elements that are important for safe operation of the PV plant are surge protectors, fuses and main disconnector switch (which separates the plant from the grid), that are located in the main cubicle, which is also the link between the inverter and PV generator. Before the generated electricity is feed into the grid, its output must be measured. This is accomplished in the measuring site, which includes an electricity meter. KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

22 TETO POWER PLANT, SKOPJE, MACEDONIA Design for 110 kv cable and OHL connection of the power plant and equipment supply INVESTOR TETO AD-Skopje, Power and Heat Production Company Skopje, Macedonia 2009

23 SCOPE OF WORKS Combined cycle thermal power plant TETO is short name for Thermal power plant and heating plant. It is placed in Skopje, near river Vardar. TETO power plant is combined from one 160 MW gas turbine and one 80 MW steam turbine. For new CCPP KORONA has made the project design documentation and supplied the equipment for 110 kv cable and OHL connection of the TETO power plant. 110 kv connection is made composed from 4 km long two system cable line and 2.5 km two system OHL line. Cable line is made from 6 segments, which are joined together and transposed. OHL is made from 13 towers and is partly placed on the former dumping ground, thus it required specially designed foundations. The project design documenation included: - Basic design with all elaborates needed for OHL and cable line - Detail design for OHL, OHL special foundations and cable line The supply of the equipment included: kv cable, Al 1000 mm2 with joining equipment kv OHL towers, ropes, OPGW, jointing equipment and insulators KORONA d.d., Cesta v Mestni log 88A, 1000, EU tel: fax: korona@korona.si

24 HSE Group and DEM (HSE Group = Holding of Slovenian Electrical Power Plants Ltd.) (DEM = Slovenian Hydro Power Plants on the Drava river Ltd.) Dual Utility Control Centre INVESTORS HSE Group and DEM Maribor, Slovenia &

25 SCOPE OF WORK HSE Group, Holding of Slovenian Electrical Power Plants, is the operator of hydro power plants on three river chains, three major thermal power plants and one nuclear power plant, all located in Slovenia. One of HSE Group s daughter companies is DEM, Slovenian Hydro Power Plants on the Drava river. HSE Group and DEM decided in 2005 to implement together a new DU CC with the functionalities fulfilling the needs of both companies. The investment was estimated for HSE Group to the value of 2 million euros and for DEM to the value of 1,3 million euros. The new DU CC was successfully put in operation in March 2007, it consists of the Group CC and of the River CC. The Group CC is responsible for managing the balance of the whole HSE group, planning of generation, realisation of operation, equalisation of deviations from the planed production levels and analysis of the whole generation of the balance group HSE, while at the same time maintaining focus on assuring reliable and optimal operation. The River CC is taking care for the optimum exploitation of water potentials of the river Drava. The Group and River CCs thus have different functionality, however they reside on the same IT and communication resources, while the data sets and views are strictly divided as per the needs of each utility. Furthermore, Group and River CCs are synchronised with each other and with the Austrian and Croatian CCs on the river Drava. Complete implementation of the new DU CC was entrusted to a consortium of companies KORONA and Iskra Sistemi. New DU CC is built on a proven ABB Network Manager platform that includes communication, SCADA system, WEB SCADA, AGC (Automatic Generation Control), ProdPlan application (Production Planning) and UDW (Utility data Warehouse). Additionally KORONA provided EVA Messaging System and Excel spreadsheet reporting tools. Several interfaces with third parties (e.g. metering system, HSE disturbances and events analyzing system) were also within the KORONA scope of supply. KORONA s EVA Messaging System enables secure communication between dispatchers, planners and traders and completely fits in any control centre infrastructure. KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

26 TPP Brestanica Integration of control information systems INVESTOR Termoelektrarna Brestanica d.o.o. Cesta prvih borcev 18, 8280 Brestanica phone.: fax: Contact: Alojz Kozinc alojz.kozinc@teb.si 2003

27 SCOPE OF WORK Thermal Power Plant Brestanica (TPPB) plays a special role in Slovenian electro energy system for its gas combined cycle technology as well as its advantageous location. The main independent control systems in TPPB are: the production system, switchyards, water preparation, fuel supply system and fire protection. Korona built the integrated control system, that collects data from all control systems mentioned above. Integrated control information system is based on the SCADA server, which processes collected data regarding analog values and alarm conditions and saves them in the local database. The processed data is presented on process schemes that can be viewed by operator on SCADA server, big screen and WEB client. The chosen data are recorded in Microsoft SQL Server database, located on data server. Functions of integrated control system are: data collection from local control systems into process database of the SCADA server data processing for the presentation data processing regarding alarm conditions data archiving in SCADA server local database data presentation and communication with the user (via Intranet) data archiving in data server database KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

28 SUBSTATIONS 110/13,8 kv Engineering services for power transmission projects INVESTOR Saudi Electricity Company Jeddah, Riyadh Kingdom of Saudi Arabia CONTRACTOR NATEL Electrical Division Jeddah Kingdom of Saudi Arabia

29 SCOPE OF WORK Korona's highly skilled engineers and specialists are involved in power projects in Slovenia as well as the Kingdom of Saudi Arabia, including the design for 110 kv transmission substations. We provide the following services: - Basic and detail design - Documentation: o Project documentation Preliminary design, construction and design document o Technical documentation As-built document, maintenance and operation o Other documentation Tender documentation, investment plans - Engineering In addition, we specialize in SCADA projects. Several projects have been completed in the Kingdom in cooperation with NATEL. KORONA has excellent contacts with major manufacturers of electrical equipment in Central and Eastern Europe enabling them to provide very efficient technical and procurement support for main equipment and protection system for transmission projects for the Saudi market. Reference projects include engineering and design of 110/13,8 kv substations: Al Nasr, Iskan Al Aam, Rabigh, Arafat, Mina, Shoaiba, Al JAmmia, Abhur South, Al ZAhrah, Jeddah, South Azizah, Al Mansoor, Al Falak. Taif, Faisaliyah, Jamia KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

30 Hassi Berkine Algeria ABB MicroSCADA Supervision and control system for 220 kv switchyard of gas power plant with 3 x 120 MW and three 220/30 kv transformer substations CLIENT SONATRACH Djenane El Malik - Hydra - Alger - Algérie (Algeria) Phone: , Fax: sonatrach@sonatrach-dz.com

31 SCOPE OF WORK SONATRACH company from Algeria (earth gas and oil pumping, processing and transportation), in years invested in expansion of electrical power grid. Four objects were built in the neighborhood of Hassi Mesaouda: gas power plant with three 120 MW generators (fourth is planned in the near future) with 220 kv switchyard and three 220/30 kv transformer substations. Highly established ABB MicroSCADA system was chosen for local supervision and control of switchyard and transformer substations. Communication between MicroSCADA base computer and peripheral equipment (control and protection equipment) was realized with optical links and LON protocol. All events in the system are time-tagged (at the incoming point in the system) with ms resolution and are divided into alarms and events. Further more, it s possible for each point to define weather it is printed or goes to event or alarm list. Whole system is synchronized with GPS system. GPS clock is connected to MicroSCADA base system that is time master and synchronizes all peripheral equipment connected to it. Process displays enable overview of complete station and straightforward visual diagnostics (based on object colors). Besides that it is possible to control stations by controlling circuit breakers, disconnectors and transformer regulator with TAP changer. Korona company competed following works regarding SCADA system: Checking and modifying process displays and connections between them; Checking, modifying and adding of signals and their classification (printing, alarms, events); Engineering of complete system for 30 kv part; Establishment of communication between SCADA system and SPA devices (protection and control) via LON/SPA gateway; Checking of control functions for switches, transformer regulator and interlock logic for switches; Overall check of SCADA system (hot backup, printing, time synchronization); Checking diagnostic functions of the system (application software errors and hardware errors, broken optical link, device malfunction). KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

32 On line transformer monitoring CLIENTS ELEKTROTEHNA ELEX International trade, d.o.o., Dunajska c. 21, Ljubljana, Slovenija Phone: Fax: Siemens; Trgovsko in storitveno podjetje, d.o.o., Bratislavska 5, Ljubljana, Slovenija Phone: Fax: END CUSTOMER Elektro Slovenija d.o.o., Hajdrihova 2, Ljubljana, Slovenija Phone: Fax:

33 SCOPE OF WORK Korona succesfully made installation of MS 3000 IED (intelligent electronic device) on seven transformers of Elektro Slovenija power grid. The MS 3000 is a comprehensive on line condition monitoring, diagnosis and expert system for power transformers from Alstom Grid's (former Areva). The sensors are wired to a monitoring module installed at the transformer. The MS 3000 IED has the capability to acquire on-line data, to store data and to perform processing and control. The MS 3000 system can be accessed by the ELES's Intranet and by modem connection. The MS 3000 is available for monitoring of one or two transformers in one substation. The IED is in the control room. The monitoring modules are located at the transformers. The monitoring module consists of: Bus coupler, digital in- and output terminals, analogue in- and output terminals Voltage peak sampler, current transducer Power supply unit, fuse, terminals, heating, lamp, fan Dependent on the sensors connected to the system the following on-line measurements and analysis can be achieved: Bushings Operating voltages and over voltages Amplitude of over voltages Load currents, over and short circuit currents Capacitive displacement current and change of capacitance Bushing power dissipation factor Apparent power and load factor Oil pressure and pressure difference Conservator Oil level Humidity of air inside conservator Cooling Unit Operating condition of fans and pumps and Operating hours of pumps and fans Ambient temperature Oil temperatures in/out cooler(s) Active Part Oil temperature Gas-in-oil content and rate of dissolved gas generation Moisture in oil and paper insulation Gas quantity and rate in the Buchholz relay Calculation of actual overload capacity and emergency overloading time Hot-spot / bubbling temperature in accordance with IEC and thermal model Aging rate and lifetime consumption in accordance with IEC Tap Changer On-load tap changer position Number of on-load tap changer operations Power consumption of motor drive Duration of tap changing Oil temperature and temperature difference Assessment of mechanical quality Sum of switched load current Korona has also submited the technical design documentation for all of the installation of on line condition monitoring system on the power transformers.

34 The on-line condition monitoring system MS3000 has been fitted on following transformers by Korona: SS Kleče transformer T211 SS Beričevo transformers T211 and T212 SS Maribor transformers T41 and T42 SS Divača phase shift transformers T441 and T442 KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

35 Petroleum derivatives warehousing Control and Automation solutions CLIENTS Petrol, Slovenia Plinarna Maribor, Slovenia

36 SCOPE OF WORK LPG warehouse Štore Korona designed and implemented a control solution for LPG warehouse Štore, including monitoring system and communication with Enterprise resource planning (ERP) in Petrol Computer system. PETROL company is the principal supplier of oil and other energy products to the Slovene market and the leading oil trading company in Slovenia. Their LPG warehouse Štore is an intermediate station for the distribution to end-customer. There are four cigar tanks of 250m3 each. Three holding Propane and one holding Propane Butane mixture. LPG Warehouse Bohova Korona designed and put into operation the complete automation and control system for LPG warehouse Bohova. The measuring line, the conditions in the reservoir and the pipes are monitored and controlled from SCADA. The system enables issuing all required documentation for filling process, transportation and delivery of gas and also the compete billing process. Plinarna Maribor is a daughter company of Istrabenz Plini, which is the leading gas company in Slovenia. Their LPG warehouse, located in Bohova, is an intermediate warehouse for the distribution to end-customer. There are two 1000 m3 spherical tanks, a road tanker and a rail tank-car filling stations. One tank stores propane and the other a propane-butane mixture. Other Ex zone references: - Design and supply of the supervisory control systems in Fuel storage Zalog and Fuel storage Zalog North (Petrol) - Connection to a fuels measurement system in TPP Brestanica KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

37 Lafarge Cement in Trbovlje New fuel gas desulphurisation plant Electrical design, Measurements, Automation, Erection INVESTOR Lafarge Cement d.d. Trbovlje, Slovenia

38 SCOPE OF WORK Lafarge Cement is building a new fuel gas desulphurisation (FGD) plant, which will be an extension to the cemetery plant LAFARGE Trbovlje. The commissioning of the plant is foreseen for the middle of year Carrier of the whole project is a company Austrian Energy and Environment, with KORONA as their local partner that had undertake the following works: - electrical design, - measurements, - automation and - erection. The electrical system as well as the process control system for the FGD plant will be integrated in the existing electrical distribution respectively in the existing plant control system. For this purpose and for operator comfort the same HMI surface and the same control hardware and software will be used. The FGD is designed on the basis of a limestone washing suspension, which is the most frequently used process around the world. The project focus is the reduction of operating costs by means of increased plant efficiency by means of flow mechanics calculations (computational fluid dynamics - CFD), as well as improvements in chemical SO2 absorption. KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

39 B&B PAPIRNICA VEVČE Energy Management System CLIENT B&B Papirnica Vevče Vevška cesta 52, 1260 Ljubljana - Polje phone: fax: Contact: Mr. Janez Gale janez.gale@papir-vevce.si 2002

40 SCOPE OF WORK For better supervision of energy sources and energy consumers, as well as of related costs, in B&B Papirnica Vevce has been decided to establish an Energy Management System (EMS). EMS helps user at optimizing, arranging and managing of energy sources and consumers. Supplementary features are: alarming, archiving and report generating. The hardware configuration is based on three Siemens PLCs which reside on different locations: heating plant, 6 kv switchyard and hydro power plant Fuzine. The data from PLCs is collected and processed on the SCADA computer in the control room of heating plant. Software part of EMS consists of two main modules: peak-demand-preventing module calculates energy demand in certain period of time and warns in case of exceeding the limit of maximum demand; costs-calculating module calculates the costs of energy production and consumption. Optimizing, arranging and managing of the energy system is based on calculated costs. Performed tasks are the following: hardware supply, PLC programming, software programming on SCADA computer, documentation design, system testing and commissioning. Connection with production management system is also expected in the future. By this the costs of energy consumption will be calculated in correlation with paper type and quantity. PROGRAMMING, DESIGNING Mark PIRC, BS Computer Engineer Dragana PRIBIC, BS Electrical Engineer Gregor ZUNIC, BS Electrical Engineer PROJECT MANAGER: Miha Levstek, BS Mechanical Engineer miha.levstek@korona.si KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

41 On-line transformer monitoring Transformer owners have always been faced with the challenge of a given transformer optimizing the performance and increasing its useful life expectancy. Idea behind on-line monitoring is to continually and accurately diagnose the current condition and capability of the transformer, provide an alert Just in Time maintenance action when required. What are we looking for? CLIENTS STUDY: ELES d.o.o., Elektro Slovenija d.o.o., Hajdrihova 2, phone: fax: INSTALLATION: TEŠ d.o.o., TERMOELEKTRARNA ŠOŠTANJ d.o.o., Cesta Lole Ribarja 18, 3325 Šoštanj phone: fax:

42 Being Pulled in Two Directions HIGHER DEMANDS Higher distribution loads Increasing transmission transactions Improving safety Enhancing reliability Enhancing T&D equipment availability Reducing operating costs Improving power quality supply to customer Eliminating repair costs after failure AGING EQUIPMENT, LIMITED RESOURCES Aging equipment Reducing maintenance budgets Loosing experienced personnel and available resources Pressure from shareholders Competition is mounting steadily Goals of On-Line Monitoring - Maintenance Optimization - Failure Avoidance - Increase Reliability - Maximize Revenue - Transformer Life Extension Benefits of On-line Monitoring - Loading T&D equipment for max. efficiency - Managing & extending the life of equipment - Detecting sings of failure conditions - Reducing unscheduled outages and failures - Deferring upgrade capital costs - Taking advantage of spot market opportunity TPP Šoštanj, Slovenia (2005) Installation of on-line monitoring system on two step-up transformers Advantages of Model Analysis - Reduce the amount of data to analyse and make it more Friendly - Facilitate the detection of abnormal condition - Reduce the time required for Interpretation - Assistance for transformer operation - Powerful alarms Algorithms - Based on international standards such as IEEE, IEC - Tailor each model specifically to the transformer KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

43 Automatic meter reading Automated meter reading (AMR) is a state-of-the-art technology that enables collection of data from geographically dispersed meters and other devices at customers premises. The data is collected at utility s central location using either private or public telecommunications networks. It involves the following components: - electronic meters with register and communication interface unit, - concentrators inside transformer stations, - communication network or system to transfer the data from the meters to the utility s offices, - an AMR control center computers to receive, collect and manage this data - software to run the system and present the data to the utility's billing and other information systems AMR presents a strong business case for distribution utilities. Namely, significant cost savings can be obtained by automating the monthly process of reading out the electricity meters with the on-line connection to the customer billing process. Such automation increases customer service, smoothens business operations, improves operational efficiencies and system reliability. AMR system can be even further expanded with connect/disconnect option (to enforce payment policies) and other functionalities, like reading of water and gas meters.

44 Meters with integrated communication module Communication over power lines Concentrator in Transformer S/S AMR Control Center Private and/or public network The meter data is sent from a module inside your AMR enhanced meter to a substation on the existing power lines (DLC Distribution Line Carrier). From the substation the data then travels to the corporate data center via communication lines, where the meter data is then integrated with customer information and billing systems, resulting in the production of a timely, accurate bill. Benefits of an AMR system: - Reduction of Reading and Data Management Costs - Revenue Protection better meter reading accuracy - Improves Customer Service - Maximizes Asset Management - Quickens Read-to-Bill Time - Improves Cash Flow from Shortened Floats - Reduces Bad Debt Due to Uncollectible accounts - More closely track shrinkage due to theft or loss - Balances Load with Power Purchases - Offers Variable Pricing Schemes - Real-Time Customer Load Information - Real-Time Pricing Support - Maximizes System Planning - Power Quality and Reliability - Outage Notification KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

45 EVA - Energy Vortal Application Is a comprehensive information system designed for building and administrating inter/intranet applications in general focused on the areas of energy production, transformation, transmission and distribution. EVA Modules are delivering a complete suit of technical information applications to meet the individual needs of utilities. The EVA technology base and open interface architecture reduces training time and maximizes your ability to cross deploy your work force. o all data at hand o quick and easy access to vital operational information o graphical and textual data presentation using standardized web browsers, thus eliminating the need of special software applications while focusing on the important issues o multivendor and multibrand data gathering, logging and visualization from digital relays, disturbance recorders, counters, breakers and other devices Concept Figure: Schematic Configuration

46 Graphical user interface o user convenience and familiarity of a standard web application o user interface configurable by the user alone, i.e. language, company style (theme), other settings o unified user interface regardless of equipment brand or manufacturer Module Technical Database o complete overview of entire inventory lists o tree structure for easy navigation o users with different level of privileges can be assigned to particular element o custom properties Module Events o direct connection to the real time database. In case of event the alarm is issued o drill down to get more detailed information like oscillography and parameters about event o data can be printed, saved and exported Module Statistics o for analyses and report building o can be done on particular Item from technical database or his subelements KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

47 Generation Protective Relay Department Management System: Alarms, automatic SMS massaging, testing reports, warehouse management, WEB SCADA, crew management, statistics, news, forum, comtrade file transfer and unification,... KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

48 Generation System for dispatching of telegrams Massaging System KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

49 Distribution WEB solution for maintenance department: Damage reports, news, public tendering for vegetation trimming, waste management, rolling stock reservations; Reclamation management: Reclamations are managed as projects; KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

50 Distribution System for control of measurements between DSO and TSO: Alarms, crew management, WEB SCADA, statistics, technical database,... KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

51 Distribution System for supervising of power quality: Technical database, event acquisition, reports,... KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

52 Distribution Application for management of transformer stations yearly revision; modules technical database, reports, yearly plan, statistics; KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

53 Transmission Protective Relay Department Management System: Management of cca 500 protection relays around Slovenia, event acquisition, automatic SMS massaging, testing reports, warehouse management, crew management, statistics, news, forum, comtrade file transfer and unification,... KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

54 Transmission Internet portal with modules for ATC, NTC, official announcements, production, consumption, news,... KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

55 Transmission Planning System: Schedule of power exchange, physical exchange, accounting of unintentional deviations, operation record book, preferential dispatch,... KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

56 Transmission System for maintenance support: event acquisition, alarms, statistics, crew management, SMS massaging, CIM (Common Information Model) connection,... KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

57 Market Operator Dynamic Queries: Enables real time dynamic queries of transactions; KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

58 Market Regulator Application for energy market data collection and reporting District heating data Natural gas data KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

59 Market Regulator Gas and Electricity Tariff Calculator: for calculation of price and for the use of networks and network charge KORONA d.d., Cesta v Mestni log 88A, 1000, EU phone: fax: korona@korona.si

60 LIST OF REFERENCES FINALISED CLIENT PROJECT YEAR NATEL, Jeddah, Saudi Arabia NATEL, Jeddah, Saudi Arabia NATEL, Jeddah, Saudi Arabia ELEKTRO GORENJSKA, Kranj, Slovenia CHPP (TE-TOL d.o.o.) The Milan Vidmar Electro institute, ABB Industria, Milano, Italia NATEL, Jeddah, Saudi Arabia NATEL, Jeddah, Saudi Arabia ELEKTRO MARIBOR, Maribor, Slovenia Ministry of Trade and Industry of RS, ELEKTRO GORENJSKA, Kranj, Slovenia ELES-TSO, ELES-TSO, ELEKTRO MARIBOR, Maribor, Slovenia Basic civil design, complete electrical design of the 110/13,8 kv substation Iskan Al Aam, Madinah Area 2000 Design and engineering of 13,8 kv S/S Rabigh 2000 Design of extension of the 110/13,8 kv substation Arafat, Makkah Area 2000 Extension of supervisory and control system of the Hydro Power Plant Soteska 2000 Heat and electric power supply from the Combined Heating Power plant Ljubljana to Paper Mill Vevče feasibility study Operation of secondary (power/frequency) controller in Electricity Co-ordination Centre of Bosnia and Herzegovina - technical study Feasibility study for refurbishment of Slovenian electrical distribution control centres Evaluation of transmission capabilities of Slovenian HV grid 2000 Testing and commissioning of ABB Advant programmable logic controllers in Ironworks Hadeed, Kingdom of Saudi Arabia Basic civil design, complete electrical design of the 110/13,8 kv substation Al Nasr, Madinah Area Engineering services (SCADA) of S/S Mina Lot Energy surveys for Unior d.d., MLM Maribor Smelting plant and General Hospital of Maribor 2000 Protection system supervisory centre: Application SW upgrade phase Program PHARE: Demand Side Management in Gas and Electricity Sector in Slovenia /10 kv S/S Labore Operation and Maintenance Manuals 2001 S/S 400/220/110 kv Podlog: Replacement of Distance Protection of the 220 kv OHL Podlog Obersielach design and wiring diagrams Installation of the fault locator RANZA at the 110 kv OHL Podlog Laško design and wiring diagrams Design for 110 kv transformer bay in S/S 110/20 kv Lenart 2001

61 CLIENT PROJECT YEAR ELEKTRO MARIBOR, Maribor, Slovenia ELES-TSO, ELES-TSO & IBE, Ljubljana, Slovenia PETROL, NATEL, Jeddah, Saudi Arabia NATEL, Jeddah, Saudi Arabia NATEL, Jeddah, Saudi Arabia ELEKTRO GORENJSKA, Kranj, Slovenia CHPP (TE-TOL d.o.o.) The Milan Vidmar Electro institute, ABB Industria, Milano, Italia NATEL, Jeddah, Saudi Arabia NATEL, Jeddah, Saudi Arabia ELEKTRO MARIBOR, Maribor, Slovenia Ministry of Trade and Industry of RS, ELEKTRO GORENJSKA, Kranj, Slovenia ELES-TSO, Design for 110 kv transformer bay in S/S 110/20 kv Dobrova 2001 Energy metering in the HPP Mavčiče and in the HPP Vrhovo design 2001 Design for 110 kv OHL bay in S/S 110 kv Gorica 2001 Process information system CUBE for Propane-butane gas filling station Store 2001 Basic civil design, complete electrical design of the 110/13,8 kv substation Iskan Al Aam, Madinah Area 2000 Design and engineering of 13,8 kv S/S Rabigh 2000 Design of extension of the 110/13,8 kv substation Arafat, Makkah Area Extension of supervisory and control system of the Hydro Power Plant Soteska Heat and electric power supply from the Combined Heating Power plant Ljubljana to Paper Mill Vevče feasibility study Operation of secondary (power/frequency) controller in Electricity Co-ordination Centre of Bosnia and Herzegovina - technical study Feasibility study for refurbishment of Slovenian electrical distribution control centres Evaluation of transmission capabilities of Slovenian HV grid Testing and commissioning of ABB Advant programmable logic controllers in Ironworks Hadeed, Kingdom of Saudi Arabia Basic civil design, complete electrical design of the 110/13,8 kv substation Al Nasr, Madinah Area Engineering services (SCADA) of S/S Mina Lot Energy surveys for Unior d.d., MLM Maribor Smelting plant and General Hospital of Maribor 2000 Protection system supervisory centre: Application SW upgrade phase Program PHARE: Demand Side Management in Gas and Electricity Sector in Slovenia /10 kv S/S Labore Operation and Maintenance Manuals 2001 S/S 400/220/110 kv Podlog: Replacement of Distance Protection of the 220 kv OHL Podlog Obersielach design and wiring diagrams 2001