KONAR - Power Plant and Electric Traction Engineering Inc. (KONAR KET by short)

100% OWNED BY KONCAR ELECTRICAL INDUSTRIES INC. 207 EMPLOYEES (150 WITH A UNIVERSITY DEGREE) ISO 9001 & ISO 14001 CERTIFIED AVERAGE ANNUAL SALES PER YEAR: app. EURO 60-70 MILLION EXPORTS app. 40%

KET S ORGANIZATION CHART BOARD Tomi DuževiA, President Miljenko KovaEec, Memeber Stjepan DragiEeviA, Member LEGAL AND PERSONNEL DEPT. QUALITY INSURANCE DEPT. B. U. TRANSMISSION SUBSTATIONS B. U. POWER PLANTS B. U. TRANSPORTATION B. U. CONTROL AND PROTECTION B. U. POWER DISTRIBUTION AND INDUSTRY B. U. WINDPLANT

MISSION: Execution of complex projects in electric power engineering, transportation and industrial branches respecting customers' needs and requirements, applying equipment and services provided by KONAR Group s companies as well as other respected manufacturers and applying know-how regarding: construction and refurbishment of complex plants plants technology equipment contracting of complex plants development of project documentation VISION: expansion of business areas entering new markets retaining the leading position in the regional market contracting and execution of more complex projects requiring higher technical and technological knowledge becoming a company of knowledge

KONCAR KET WITHIN KONCAR GROUP: - is the main contracting company and the provider of engineering activities in projects involving construction or refurbishment of complex plants for power generation, transmission and distribution, for transportation and industry. has been generating one third of the total revenue of the KONAR Group incorporates more than 80 percent of equipment and services provided by the KONAR Group companies represents the impetus of new product development and expansion to new business areas and activities

MAIN BUSINESS AREAS: POWER ENGINEERING: GENERATION (HPP, TPP, NPP, DPP, WPP) TRANSMISSION & DISTRIBUTION (TRANSFORMER SUBSTATIONS) TRANSPORTATION (ELECTRIC TRACTION AND MARINE) INDUSTRY (OIL AND GAS, WATER, CHEMISTERY ) CONTROL AND PROTECTION SYSTEMS

MAIN ACTIVITIES: DESIGN AND CONSTRUCTION OF COMPLEX ELECTRIC PLANTS AND INSTALLATIONS ON A TURN-KEY BASIS OFFERING & TENDERING CONTRACTING & CONSTRUCTION DESIGN SUPPLAY OF EQUIPMENT CONTROL SYSTEM DELIVERY INSTALLATION, TESTING AND COMMISSIONING TRAINING MAINTENANCE & SERVICE REFURBISHMENT AND MODERNISATION

MAJOR CURRENT CONTRACTS - Construction of stabile electric traction plants on railway line Moravice Šapjan (Zagreb-Rijeka) Croatian railways - HPP (Hydro Power Plant) LešAe, 2x25 MVA, Croatia - HPP Blanca, 3x16 MVA, Slovenia - HPP Vernom, 4x5 MVA, USA - HPP Megpie, 3x14 MVA, Canada - HPP Mostarsko Blato, 2x32 MVA, EP BIH Bosnia and Hercegovina - Croatian Highways plants for electric power supply - Modernization of 4 biggest power distribution control centers in Croatia (HEP - Zagreb, Split, Rijeka and Osijek) - Remote control of plants for gas transportation Plinacro, Croatia - 2x SS (substation) 220kV, 2x SS 110kV VAO and DEJERS project- ALBANIA - HPP Lagerfoss, 1x24 MVA, Iceland control system - HPP PeruEa control system refurbishment - HPP Bhavani Kattalai II and III, 4 x16mva, India

CERTIFICATES ISO 9001 & 14001

PRESENTATIONS OF FINISHED PROJECT EXAMPLES: HYDRO POWER PLANT MESSOCHORA 2X90MVA-GREECE THERMAL POWER PLANT 1X247MVA, CROATIA WIND POWER PLANT POMETENO BRDO, 15X1MVA, CROATIA LOW FLOOR TRAMCARS, TMK 2200, CROATIA SS 400/110kV ERNESTINOVO, CROATIA

HYDRO POWER PLANT MESSOCHORA 2x90MVA, GREECE

CONSTRUCTION OF HPP MESSOCHORA 2 x 90MVA (Greece) CLIENT: Electriciyy Authority of Greece Public Power Corporation (PPC) PROCEDURE: Internationl Competitive Bidding Procedure WINNER: Consortium KONCAR, Croatia CKD, Czech Republic SCOPE OF THE PROJECT FOR KONCAR: «Turn key» - design for construction, supply and delivery of equipment, installation, testing and commissioning, «as built» documentation as well as warranty period. TIME FRAME: Offered March, 1994, the contract signed in May, 1996 and completed in January, 2001

Consortium KONCAR, Croatia & CKD, Czech Republic LEADER OF THE CONSORTIUM: KONCAR - POWER PLANT AND ELECTRIC TRACTION ENGINEERING Inc., Croatia Turn Key of the Electrical portion, inclusive generators, transformers, switchgear and related ancciliary equipment, systems and expertise. MEMBER: CKD Blansko, Czech Republic Turn Key of the Hydromechanical portion, inclusive turbines, other mechanical equipment and related ancciliary equipment, systems and expertise.

HPP MESSOCHORA - LOCATION HPP MESSOCHORA

BILL OF QUANTITY / BASIC TECHNICAL DATA QTY 2 units 2 units 1 lot 1 set 2 sets 2 sets 2 sets 1 set 1 set 1 set 2 units D e s c r i p t i o n Synchronous Generator 90MVA; 15,75 kv; 333,33rpm; cos pfi0,9 Generator Transformer 90MVA; 15,75/150 kv; OFAF Switchyard 150/20kV SCADA System (Control, protection and Monitoring Equipment) Static Excitation System with Thyristor Converter Generator Terminal and Neutral Point Cubicle Generator Insulated Busbars AC/DC Auxiliary Power Supply Auxiliary Supply cast-resin type Transformers 1250 kva,20/0,4 kv Diesel-Generating Stand-by Set 400 kva Distribution Transformer 12.5MVA; 150/20kV Other related ancilliary and auxiliary equipment and systems

THE MOST SIGNIFICANT CONTRIBUTIONS AND MAJOR ACHIVEMENTS ENGINEERING ACTIVITIES: Complete design for construction, selection of equipment, integration of systems, parametering, installing, testing and commissioning, including system functioning warranty as well as as built documentations. Integration of technologies (HW+SW) made and delivered by several worldly recognized manufactures within supervision and control systems.

TECHNICAL CALCULATIONS TOOLS USED: WORD & ACAD: Single Line Diagrams, Lay-outs, Wiring diagrams ETAP Power Station (up to 200 busbars): Short circuit current KET SABIR (our own Software): Mechanical forces and strength ACAD: Ciwil works proposals KET UZEM (our own software): Earththings

Single Line Diagram OH LINES 150kV UNITS 1&2

S/S 150 kv Single Line Diagram

S/S 150/20kV, Lay-out

S/S 150/20kV, Cross-section

S/S 150/20kV. Lay-out, 3D

HPP MESSOCHORA 2 x 90MVA (Greece)

CONCLUSION CONSTRUCTION HAS BEEN COMPLETED ON TIME KONAR KNOW-HOW HAS BEEN USED. MAJOR EQUIPMENT MANUFACTURED BY KONCAR

THERMAL POWER PLANT PLOMIN 2, 1x247 MVA, CROATIA

TPP PLOMIN 2, 1 x 247 MVA

BASIC TEHNICAL DATA DESCRIPTION FUEL / CONSUMPTION STEAM GENERATOR CONDENSING STEAM TURBINE MAIN CONTROL SYSTEM TURBINE CONTROL SYSTEM ELECTRICAL EQUIPMENT ELECTRICAL EQUIPMENT CONTROL SYSTEM MANUFACTURER IMPORT HARD COAL PODWER (24-29,3 MJ/kg; SULPHUR 0,3-1,4%) / 80 t/h WURO WAKOVIX, CROATIA (LICENCE SULZER) ABB, CROATIA TELEPERM XP, SIEMENS TURBOTROL, ABB KONCAR, CROATIA KONCAR, CROATIA (PC-s NETWORK AND SCADA SOFTWARE, PROZA R/F, KONCAR-KET)

TPP PLOMIN 2, 1 x 247 MVA CLIENT: JV HRVATSKA ELEKTROPRIVREDA (HEP) & RHEINISCH - WESTFAELLISCHE ELEKTRIZITAETSWERK, NJEMACKA (RWE) PROCEDURE: INVITED TENDER WINNER: KONCAR-KET PROJECT VALUE: 25 mil. EUR SCOPE OF THE PROJECT FOR KONCAR: «Turn key» - design for construction, supply and delivery of electrical equipment, installation, testing and commissioning, «as built» documentation as well as warranty period.

ELECTRICAL EQUIPMENT AND EXPERTISE PROVIDED BY KONCAR-KET (1/2) TURBO GENERATOR AND UNIT TRANSFORMER turbo generator with auxiliary systems excitation system metal enclosed generator busbars with associated equipment 13,8/240 kv unit transformer TPP2 CONNECTION TO THE POWER GRID 220 kv switchyard 220/110 kv network transformers 110 kv switchyard AUXILIARY AND GENERAL POWER SUPPLY 6.3 kv switchgear 0.4 kv switchgear diesel generating set and emergency power supply ELECTRIC MOTOR DRIVES UNINTERRUPTIBLE POWER SUPPLY SYSTEMS 24, 48 and 220 V DC switchgears 220 V, 50 Hz stabilised voltage CONTROL, PROTECTION AND MEASUREMENT SYSTEM

ELECTRICAL EQUIPMENT AND EXPERTISE PROVIDED BY KONCAR-KET (2/2) TURN KEY: - DESIGN FOR CONSTRUCTION, - SUPPLY AND DELIVERY OF ELECTRICAL EQUIPMENT, - INSTALLATION, - TESTING AND COMMISSIONING, - «AS BUILT» DOCUMENTATION, - WARRANTY PERIOD.

SINGLE LINE DIAGRAM

TURBO GENERATOR BASIC DATA POWER VOLTAGE CURRENT FREQUENCY Cos fi SPEED DEGREE OF EFFIENCY INSULATION CLASS WEIGHT 247 MVA 13,8 kv; +/- 7,5% 10334 A 50Hz 0,86 3000 RPM 98,65 % F 280 t

TURBO GENERATOR AND TURBINE

TURBO GENERATOR

TURBO GENERATOR - INSTALLATION

EXCITATION CUBICLES

METAL ENCLOSED GENERATOR BUSBARS

UNIT TRANSFORMER 245MVA; 13,8/240kV; YNd5; OFAF

220/110kV SUBSTATION

NETWORK TRANSFORMERS 2 x 150MVA; 220/115kV; YyN0; ONAF

6,3kV SWITCHGEAR WITHDRAWABLE VACUUM CB

DIESEL GENERATING SET, 800kVA

ELECTRIC MOTOR DRIVES

0,4kV SWITCHGEAR

220V, 50Hz AC STABILISED VOLTAGE SUPPLY

CONTROL, PROTECTION AND MEASURING SYSTEM

MAIN CONTROL ROOM

TPP PLOMIN 2, 1 x 247 MVA

WIND POWER PLANT, POMETENO BRDO 14x1MVA, CROATIA

CONTENTS 1) INTRODUCTION 2) BASIC PRINCIPLES OF WIND TURBINES 3) KONCAR WIND TURBINE 4) WIND POWER PLANT POMETENO BRDO

BASIC PRINCIPLES OF WIND TURBINE (1/2) Indirect drive - Induction Generator

BASIC PRINCIPLES OF WIND TURBINE (2/2) Direct drive - Synchronous Generator

BASIC PRINCIPLES OF WIND TURBINE Direct drive - Synchronous Generator

ADVANTAGES OF WIND TURBINE WITH DIRECT DRIVE - INCREASED EFFIENCY 10-15 % AT CONVERSION FROM WIND ENERGY TO ELECTRIC ENERGY - REDUCED LOSSES - REDUCED OSCILLATIONS OF ELECTCICAL ENERGY BECAUSE OF PITCH REGULATING TURBINE DAMPING EFFECT - REDUCED NOISE - INCREASED OPRATIONAL SAFETY

MADE IN CROATIA

KONCAR OWN RESEARCH AND DEVELOPMENT ADVANTAGES: - MORE THAN 80 YEARS OF EXPERIENCE IN THE FIELD OF THE EQUIPMENT FOR ELECTRIC ENERGY GENERATION - FURTHER DEVELOPMENT OF THE KONCAR GROUP AND SUPPORTING CROATIAN INDUSTRIES - MAINTAINING OF JOBS AND CREATING OF NEW JOBS

RECENT SITUATION AND PLANS - DESIGN OF 750 kw WIND TURBINE FINISHED - DESIGN OF 1MW WIND TURBINE FINISHED - 2006. COMISSIONING OF THE FIRST 1MW WIND TURBINE - 2007. COMISSIONING OF 14x1MW WIND TURBINES - 2007. DESIGN OF WIND TURBINE 1,5 MW

TECHNICAL DATA (1/2) Type designation Rated power Tower height Control principle Wind speed, cut - in Rated wind speed Wind speed, cut - out Wind speed, survival Greed connection Tower Control system Yawing system KO VA 57/1 1000 kw 60 m Pitch control / torque control 2,5 m / s 12 m / s 25-35 m / s 60 m / s Frequency converter (AC-DC-AC) steel, cone Microprocessor control system Active with damping

TECHNICAL DATA (2/2) GENRATOR BRAKE SYST. Synchronous, disc type, direct drive, variable speed, externally excited 1000 kw, 3x690 V Three independent pitch drive systems with back-up supply Parking brake and rotor locking device ROTOR Blades No. Material Diameter Swept area RPM Rotation direction Rotation speed adjustment Pitching 3 Reinforced duromer (glass fiber with epoxy resin and with integrated lightning protection) 57 m 2588 m2 10 30 1/min Right Pitching and torque control Three independent pitch drives with back-up supply

KONCAR WIND TURBINE KO VA 57/1

WIND ENERGY POTENTIAL IN CROATIA - DALMATIA: 400 MW - LIKA: 400 MW - ISTRIA: 200 MW - CROATIA CENTRAL PART: 300 MW - TOTAL ESTIMATED: 1300 MW; 3 TWh / YEAR

WPP POMETENO BRDO (SWEPT HILL)

WPP POMETENO BRDO (SWEPT HILL) Grid connection issues: - transmission grid - SS Konjsko 400/220/110 kv - Cable connection (20 kv cable) - HEP Croatian electricity authority

LOW FLOOR TRAMCARS TMK 2200

PROJECT INFORMATION Contract for 70 Tramcars for the city of Zagreb CROTRAM / KONAR Contract undersigned 24.02.2003 (international bidding) Delivery of the first tram May 2005 Delivery of the last tram May 2007

TECHNICAL SPECIFICATION OF THE TRAMCAR Car body length 32 000 mm Car body width 2 300 mm Car body height 3 400 mm Height of the entrance 300 mm Seated Passengers 48 Standees 157 (4 pass./m2) Voltage DC 600 (+20 %, -30 %) Power 6x65 kw Max. speed 70 km/h Air-condition unit for passengers 2 Air-condition unit for the driver 1 Video surveillance Video rear view control unit

KONCAR IN PROJECT Contract with customer Development of the vehicle system Design and construction Design and production of the main components Final assembly Type testing of the vehicle Serial testing and delivery

TZV GREDELJ IN PROJECT Development and production of the part of the car body modules Assembling of the part of the components Testing of the car body

BOGIE KONCAR s requirements Development in cooperation with German firm SRS Koncar s ownership of the documentation Hydraulic suspension (both primary and secondary)

KONCAR ADVANTAGES (STRENGTH) Customer oriented approach Development and production main components Flexibility in design and production Flexibility in cooperation Local partners Customers

POWER ELECTRONICS CONVERTERS ON TRAMCAR TMK2200

MAIN DRIVE CONVERTER PGP Pulse width modulated three-phase voltage source IGBT inverter Rated input voltage: 600 VDC, +20% / -30% Rated output current: 3 x 320 Arms Max. output current: 3 x 670 Arms Output frequency: 0 143 Hz Ambient temperature: - 25 C to +40 C Cooling: forced, with integrated fan Size (L x W x H): 1800 x 1000 x 556 mm Weight: 420 kg

MAIN DRIVE CONVERTER PGP 600 V DC M 3 ~ n M 3 ~ n PS KS PS 1 PS 2 PS 3 M 3 ~ TRACTION CONTROL UNIT AC 24V DC VEHICLE CONTROL UNIT DIRT

MAIN DRIVE CONVERTER: POWER PART ASSEMBLYING

AUXILIARY POWER SUPPLY CONVERTER PPB35 Rated input voltage: 600 VDC, +20% / -30% Three-phase output: 3x400 V, 50 Hz, 20 kva Single-phase output: 1x230 V, 50 Hz, 2,2 kva DC output: 24 V, 400 A Protection class: IP 54 Ambient temperature: -25 C to +40 C Cooling: forced, with integrated fan Size (L x W x H): 1800 x 1000 x 556 mm Weight: 430 kg

AUXILIARY POWER SUPPLY CONVERTER PP25 Rated input voltage: 600 VDC, +20% / -30% Three-phase output: 3x400 V, 50 Hz, 25 kva Protection class: IP 54 Ambient temperature: Cooling: Size (L x W x H): Weight: - 25 C to +40 C forced, with integrated fan 1800 x 800 x 556 mm 350 kg

AUXILIARY POWER SUPPLY CONVERTER: THE FIRST STAGE OF ASSEMBLYING

DETAIL OF THE AUXILIARY POWER CONVERTER: FORCED AIR COOLING AND INPUT FILTER REACTOR

CAPACITIVE ENERGY STORAGE DEVICE: INSIDE VIEW

AUXILIARY POWER SUPPLY CONVERTER: TEMPERATURE RISE TEST

AUXILIARY POWER SUPPLY CONVERTER: ROUTINE TESTS IN LABORATORY

MAIN DRIVE CONVERTER: TEST OF THE DEGREE OF PROTECTION (IPx4)

MAIN DRIVE CONVERTER: VIBRATION TEST OF IT S POWER PART

ELECTRICAL EQUIPMENT MOUNTED ON TRAMCAR ROOF

ELECTRONIC CONTROL UNITS IN THE VEHICLE

VEHICLE CONTROL UNIT (VCU) - DIRT VCU named DIRT (DIgital Regulation in Traction) is the vehicle main control system responsible for: control, measuring, sequencing, protection, supervision and communication tasks in the whole vehicle. VCU is based on proprietary hardware and software solutions with the following characteristics:

VEHICLE CONTROL UNIT (VCU) - DIRT completely redundant configuration - 2 channels communication with all distributed intelligent units in the vehicle through main CAN communication channel additional CAN channel for communication with main drives communication with man-machine interface unit in the cab supports remote diagnostic functions programming language, based on block-diagrams, facilitates the development of vehicle application program

VEHICLE CONTROL UNIT front view input filter and PS PS supervision CPU DI DO CAN + A/D & D/A AI/AO conditioning RS485 isolation

TRACTION CONTROL UNIT (TCU) TCU supports tasks (regulation, control, measuring, sequencing, communication) related to the particular part of the vehicle (bogie) TCU is a part of the main drive converter. Each converter (3 pcs. per vehicle) powers 2 induction traction motors the system is functionaly coupled with the brake control units (BCU) certain electronic modules and programming language are completely identical to the VCU. It facilitates development, production, commissioning and service.

TRACTION CONTROL UNIT front view input filter and power supplies power supplies supervision central processing module digital inputs digital outputs double channel CAN module + A/D & D/A digital signal processing (DSP) modules galvanic isolation for RS485 channels digital speed measurement measurement, control, optical interface and protection modules

DRIVER - MACHINE INTERFACE - PC - based architecture - proprietary application development tools

CONTROL UNITS ARE BASED ON 3 TYPES OF PROCESSORS Freescale communication processor of series MC68xxx Infineon 8-bit microcontroller of series C500 Texas Instruments digital signal processor of series C2000 graphical programming language is always the same

DOUBLE CHANNEL CAN MODULE - CAN extension to the main CPU - supports 2 CAN communication channels - additional A/D, D/A, DI, DO and interrupt inputs

INTERCONNECTION OF VEHICLE FUNCTIONS

VEHICLE COMMUNICATION NETWORKS 7 7 7 7 7 7 CAN_3 5 5 6 6 5 5 5 5 7 4 4 1 1 1 CAN_2 4 BCU_1 2 CAN_1 3 RS485_1 TCU VCU MMI BCU DCU HVAC BGCU RS485_2

APPLICATION PROGRAM DEVELOPMENT - integrated development environment (IDE) - programming language based on block diagram approach - same IDE for all types of CPUs

ERNESTINOVO 400/110kV SUBSTATION (Croatia)

NEW CONSTRUCTION OF ERNESTINOVO 400/110kV SUBSTATION (Croatia) CLIENT: Croatian Electricity Authority (HEP-Hrvatska Elektroprivreda) PROCEDURE: International Competitive Bidding Procedure WINNER: KON^AR Consortium SCOPE OF THE PROJECT: turn key - design for construction, supply and delivery of equipment, inclusive civil works, installation, testing and commissioning, as built documentation TIME FRAME: Offered in Jan.2002, contract signed in May 2002 and completed in November 2003 (18 months).

KONCAR-CONSORTIUM: LEADER OF THE CONSORTIUM: KONÂR - POWER PLANT AND ELECTRIC TRACTION ENGINEERING Inc. CONSORTIM MEMBERS: KONÂR - HIGH VOLTAGE SWITCHGEAR Inc. KONÂR - SWITCHGEARS Inc. KONÂR - INSTRUMENT TRANSFORMERS Inc. KONÂR - ELECTRONICS AND INFORMATICS Inc. KONÂR - ENGINEERING FOR PLANT INSTALLATION & COMMISSIONING Inc. DALEKOVOD Inc.

TWO SYNCRONOUS AREAS OF UCTE SYSTEM

CROATIAN GRID, 400 & 220kV AND RELEVANT FACILITIES OF NEIGHBOURING COUNTRIES GRIDS DUBROVNIK

BASIC TECHNICAL DATA Max.voltage kv 420 123 38 Nominal Voltage 400 110 35 Frequency Hz 50 50 50 Power frequency withstand voltage kvrms (50Hz, 1min.) 520 230 70 Lightning impulse withstand voltage kv (1,2/50µs) 1425 550 170 Switching impulse withstand voltage kv (250/2500µs) 1050 - - Short-circuit current (rms) ka 40 40 25 Peak short-circuit current ka 100 100 63 Short-circuit duration sec 1 1 1 Normal Current Busbars A 4000 2000 1250 Normal current Feeders A 2000 1250 1250 System configuration directly earthed directly earthed Low impedance Pollution level Medium Medium - Creepage distance mm/kv 20 20 - Ambient temperature range deg.c -25 +40-25 +40-5 +40 Altitude masl <1000 <1000 <1000 Standards applied IEC IEC IEC

BASIC TECHNICAL DATA Switchgear 400kV 110kV 35kV Type of switchgear Outdoor (AIS) Outdoor (AIS) Indoor (AIS) Busbars Double + aux. Triple Single OHL bays 5 10 4 Transformer bays 2 2 2 Bus coupler bays 2 2 1 Compensation bay - 1 - Busbar measurement bays 2 2 2 Number of bays fully equipped 11 17 9 Number of bays unequipped spares 3 9 0 Total number of bays 14 26 9 Main Power Transformers 2 x 300MVA - - Auxiliary transformers 2 x 1000kVA Shunt reactor - 100MVAr - Diesel generating sets 2 x 250kVA Batteries 16 sets 220Vdc, 105 Ah; 2 sets 48Vdc, 350 Ah

MAYOR SERVICE PROVIDERS AND MANUFACTURERS OF MAJOR EQUIPMENT Type of equipment / services Main design documentation Design for construction and as built documentation System integration technologies for supervision, control, protection, signalling and metering inclusive of design, parametering, testing and commissioning Service provider & Manufacturer ELEKTROPROJEKT-ZAGREB, Croatia KONCAR-POWER PLANT AND ELECTRIC TRACTION ENGINEERING, Croatia 420 & 123kV SF6 Circuit Breakers -420kV with hydraulic operating mechanism -123kV with spring operating mechanism 420 & 123 kv Disconnectors and Earthing switches, with composite insulators and motor operating mech. KONCAR-HV SWITCHGEARS, Croatia 123kV Post Insulators C10-550 (composite type)

MAYOR SERVICE PROVIDERS AND MANUFACTURERS OF MAJOR EQUIPMENT 400/110kV, 300MVA Autotransformers YNa0(d5), OLTC (+16/-11%),OFAF 420 & 123kV Current and Voltage oil immersed transformers KONCAR-POWER TRANSFORMERS, Croatia KONCAR-INSTRUMENT TRANSFORMERS,Croatia 420kV Post Insulators C6-1550 (porcelain type) 420 & 123kV Lightning Arresters 420kV Line traps 123kV, 100MVAr Shunt reactor 38 kv Metalclad air insulated switchgear with withdrawable vacuum CB-s PPC-CERAM, Austria SIEMENS, Germany TRENCH, Austria SIEMENS, Germany KONCAR-MV & LV SWITCHGEARS / KONCAR-MV APPARATUS, Croatia 420kV Busbars: E-AlMgSi0,5 F22, tube 220/204mm, length 21m 123kV Busbars: E-AlMgSi 0,5 F22, tube 100/88mm, length 9m each TLM SIBENIK, Croatia

MAYOR SERVICE PROVIDERS AND MANUFACTURERS OF MAJOR EQUIPMENT AC systems 3 x 400/231V, 50Hz KONCAR MV & LV SWITCHGEARS, Croatia DC systems & UPS KONCAR-ELECTRONICS & INFORMTICS, Croatia Batteries VRLA HAWKER, France Control, protection, signalling and measurement Hardware and basic Software SIEMENS, Germany ABB, Sweden Telecommunication Hardware and basic Software SIEMENS, Germany Steel structure, HV connectors, clamps & fastenings, inclusive of installation DALEKOVOD-ZAGREB, Croatia

Single Line Diagram 400kV

Single Line Diagram 110kV

CONTROL & SCADA System Block Diagram

MORE SIGNIFICANT CONTRIBUTIONS A) NEW TECHNOLOGIES DEVELOPED AND APPLIED Composite insulators Power transformer monitoring New self-blast breaking system as well as energy of arc extinction (thermal effect) to reduce energy of operating mechanism on 420 & 123kV CB No capacitors on 420kV CB with two interrupting chambers Distributed DC system with HF rectifiers and chargers Intensive usage of optical infrastructure

MORE SIGNIFICANT CONTRIBUTIONS AND MAJOR ACHIVEMENTS B) ENGINEERING ACTIVITIES: Complete design for construction, selection of equipment, integration of systems, parametering, installing, testing and commissioning, including system functioning warranty as well as as built documentations. Integration of technologies (HW+SW) made and delivered by several worldly recognised manufactures within supervision and control systems, Solution for optical infrastructure (due to distribution) for connection of different technologies and manufacturers for supervision, control, protection, monitoring, telecommunication, fire protection and other safety requirements as well as audio-video monitoring/supervision Process data exchanging with neighbouring countries and UCTE (IEC-TASE 2 protocol)

BENEFITS OF THE PROJECT AT THE NATIONAL LEVEL: establishing of original pre-war electricity network situation in eastern Croatia meeting the standards for reliability and quality of electricity supply reducing of transmission system losses reducing electricity generating costs due to enabling better plant dispatch transports and transits of energy to and from other countries contribution to establishment of sound and solid infrastructure basis for economic development of the eastern Croatia

BENEFITS OF THE PROJECT B) AT THE REGIONAL LEVEL: establishment of electricity infrastructure necessary for synchronous re-connection of UCTE 2nd synchronous zone to the main UCTE grid increasing security and reliability of supply in a wider part of the electricity grid enabling cross border transit and trade among different countries enabling easier meeting of growing electricity consumption requirements and therefore decreasing pressure for construction of new power plants in the region enabling competitive supply of electricity for the broader region with significant interconnection lines capacities

Before new construction

400/110kV Main Autotransformer

420kV SF6 Circuit Breakers & Disconnectors

MAIN CONTROL ROOM