HITZINGER GmbH 1 Agenda Company History, Organisation, Profile - PowerPoint PPT Presentation

NBDK – IT Power Systems Advantages Extremely available…  High quality of system components  Maintenance and service during operation  Choke with natural cooling and integrated harmonic filter  Torque limiting design for flywheel and electromagnetic clutch  Worldwide accepted diesel engines with local services, spares and maintenance availability HITZINGER GmbH  30

Features and Benefits Less Waste: Environmental impact REDUCING HAZARDOUS WASTE EXAMPLE 1: Typical waste of a 2000 kVA UPS after 20 years Static UPS Dynamic UPS 3 x 33,000 kg batteries < 100 kg of steel (15 minutes autonomy time) (bearing material) - Plus power electronic components A much GREENER Alternative! HITZINGER GmbH  31

Features and Benefits Less Waste: Environmental impact REDUCING HAZARDOUS WASTE EXAMPLE 2: Typical waste of a 8 MVA UPS after 20 years Static UPS Dynamic UPS 3 x 100 tonnes batteries < 400 kg of steel - Plus power electronic components (bearing material) A much GREENER Alternative! HITZINGER GmbH  32

NBDK – Mechanical Design 3 5 6 1 2 4 1. Radiator 2. Diesel engine 3. Flexible Coupling & Electromagnetic clutch 4. Synchronous machine 5. Flexible coupling 6. Kinetic module HITZINGER GmbH  33

NBDK – Mechanical Design 5 3 4 6 1. Radiator 2 2. Diesel engine 3. Flexible Coupling & Electromagnetic clutch 4. Synchronous machine 5. Flexible coupling 6. Kinetic module HITZINGER GmbH  34

NBDK – Corrosion Protection finishing varnish 1 layer finishing varnish 1 layer 2-component varnish 2 layers HITZINGER GmbH  35

NBDK – Corrosion Protection HITZINGER GmbH  36

Kinetic Energy Module KINETIC ENERGY STORAGE MODULE (KIN) for UPS-Systems with a frequency variation of max. 1 %! HITZINGER GmbH  37

Kinetic Energy Module 6 5 4 3 2 1 1) AC / DC exciter machine 2) Stator winding of the exciter 7 machine 3) Outer rotor mass 4) Squirrel cage 5) Inner rotor with AC / DC winding 6) Inner KIN bearing 7) Outer KIN bearing In case of mains failure, the kinetic energy stored in the KIN provides the UPS load until the supply via the diesel engine can be assured. Maximum frequency deviation : +/- 1% Maximum voltage deviation : +/- 10 % HITZINGER GmbH  38

Kinetic Energy Module Synchronous alternator KIN-module Diesel engine Inner Rotor KIN-Modul 2700 rotating speed: rpm 1500 1500 rpm rpm Outer Rotor (squirrel cage) rotating speed: 2700 rpm Advantages: In case of mains failure, the inner rotor‘s magnetic field Brushless  brakes the outer rotor and Low maintenance  keeps the synchronous High reliability  alternator‘s rotating speed High MTBF  constant. HITZINGER GmbH  39

DDUPS Room Layout HITZINGER GmbH  40

NBDK – IT Power Systems Electrical Operation and Energy Flow HITZINGER GmbH  41

NBDK Principle Diagram Consumer – Mains supply 9 9 9 Pure Sine Wave a a e e e b b c c d d 16 16 16 14 14 14 15 15 15 17 17 17 5 5 5 6 6 6 7 7 7 f f 8 8 8 a. Harmonic 1. Diesel engine distortion 2. Electromagnetic b. Voltage peaks clutch c. Voltage drops 1 1 1 2 2 2 4 4 4 3 3 3 3. Synchronous d. Power loss alternator e. Mains supply 4. Kinetic module f. Load output of 5. Choke UPS 6. Mains CB 7. Consumer CB 8. Alternator By-Pass operation protection Stand-by operation 9. By-Pass CB Diesel operation Frequency deviation: < 1% HITZINGER GmbH  42

The Magic Choke In a UPS system, the coupling choke connects the incoming grid with the UPS output supply, that has to meet highest quality requirements. The choke„s and the alternator„s special design guarantees a high degree of decoupling between the grid and the UPS output. The choke…  Supports static and dynamic voltage decoupling on the UPS collecting bar  Decouples fluctuations and harmonics on the grid  Upper harmonics filter  Balancing of dynamic loads  Restriction of current in case of short circuit X I in = line current Iin I out = consumer current Iout Uin Uout U in = line voltage Ualternator U out = consumer voltage U alternator = alternator voltage HITZINGER GmbH  43    

The Magic Choke This configuration„s output voltage is completely independent from the input side. The fundamentals (50Hz or 60Hz) are only determined by the alternator. Either the choke (since the reactance of the choke depends on the frequency) or the alternator blocks possible upper harmonics and transients. The connection between the terms Uchoke = I . Xchoke and Xchoke = 2 . π . f . L shows, that the choke is a determining component for higher frequencies while the alternator with its special configuration of the stator winding eliminates lower frequencies‟ upper harmonics (e.g. 3rd, 5th, 7th,…harmonics) Short circuits: In case of a short circuit on the input (equals a total mains failure in which the load is transferred from the input to the alternator via the choke), the choke limits the fault current until the cutoff of the input. The voltage drop on the choke‟s short circuit is added to the alternator‟s voltage via the choke‟s circuit. Therefore, the UPS‟s voltage equals approximately the alternator‟s voltage: ΔU = -10% to - 15% (depending on the choke„s position) Inverse operation of the input„s current transducer: As the inverse operation of the input„s current transducer depends on the temporary short circuit between two phases during the commutation period, the choke can avoid the influences on the not- affected power unit (UPS-mains), following the same principle. HITZINGER GmbH  44

Description of Operation Netz- Mains Netz- Mains Netz- Mains Start up Hochfahren Shut down Abschalten operation power return r ü ckkehr betrieb ausfall failure By-pass circuit breaker closed  Diesel engine starts  KIN module charging  Synchronization to mains (“Make before Break”)  Diesel engine shut down  HITZINGER GmbH  45

Description of Operation Netz- Mains Netz- Mains Netz- Mains Start up Hochfahren Shut down Abschalten operation power return r ü ckkehr betrieb ausfall failure Supply of the consumer load via choke from mains,  synchronous machine in motor operation Synchronous machine acts as an filter and provides stable  voltage and reactive power to the consumers Filtering of harmonics and balancing of asymmetric loads  Distortion factor < 3%  HITZINGER GmbH  46

Description of Operation Mains Netz- Netz- Mains Netz- Mains Start up Hochfahren Shut down Abschalten operation power return r ü ckkehr betrieb ausfall failure Mains circuit breaker opens  KIN module keeps load uninterruptedly supplied  Simultaneous start of diesel engine  Electromagnetic clutch closes  Load transfer from KIN module to diesel engine  Diesel engine provides the UPS supply and charges the KIN  module HITZINGER GmbH  47

Description of Operation Mains Netz- Netz- Mains Netz- Mains Start up Hochfahren Shut down Abschalten operation power return r ü ckkehr betrieb ausfall failure Mains within permitted tolerances for a certain period  Synchronization of the consumer load back to mains  Electromagnetic clutch opens  Shut down of diesel engine after cooling period  HITZINGER GmbH  48

Description of Operation Netz- Mains Netz- Mains Netz- Mains Start up Hochfahren Shut down Abschalten operation power return r ü ckkehr betrieb ausfall failure Bypass circuit breaker closes  Mains and consumer CB‟s opens  Machine runs down (energy consumption due to internal  losses) Alternative:  Electromagnetic clutch closes  Diesel engine ignition is blocked  Diesel engine compression is used to increase the energy  consumption  fast run down HITZINGER GmbH  49

Alternate redundant Diesel Engine Start Speed Kinetic Energy Storage 2700 Speed [rpm] Alternator speed 1500 ~800 t [sec] 0 1 2 3 4 5 6 7 Standard Starting Procedure: Redundant Starting Procedure: Diesel engine starts via electrical  Electromagnetic clutch closes  starter Diesel engine acceleration by KIN  Electromagnetic clutch closes at  module to nominal speed ~800rpm Additional acceleration by KIN  module HITZINGER GmbH  50

NBDK – Energy Flow Diagram By-pass Operation Reactive power kVAR Active power kW Mains input consumer Auxiliary power supply engine Diesel fuel Coolant preheater Prelubrication Control panel Battery charger Supply of the UPS load via the by-pass power switch directly from the mains  NBDK„s auxiliary power supply is taken from the UPS„s consumer bar  HITZINGER GmbH  51

NBDK – Energy Flow Diagram Start up Reactive power kVAR Active power kW Mains input consumer Auxiliary power supply engine Diesel fuel Active power kW Coolant preheater Prelubrication Control panel Battery charger Supply of the UPS load via the by-pass power switch directly from the mains  The diesel engine accelerates the synchronous machine and the KIN module up  to nominal speed Storage of the kinetic energy (needed for providing the UPS load) in the KIN  module HITZINGER GmbH  52

NBDK – Energy Flow Diagram Synchronization Active power kW Mains input consumer Reactive power kVAR Reactive power kVAR Auxiliary power supply engine Diesel Active power kW fuel Friction losses Coolant preheater Prelubrication Control panel Battery charger Synchronization is performed with a slightly positive beat frequency compared  to the mains After the synchronization, the alternator delivers the reactive power  Reactive power flows back to the mains due to choke magnetization  HITZINGER GmbH  53

NBDK – Energy Flow Diagram Stand-by Operation Active power kW Mains input consumer Friction losses Reactive power kVAR Auxiliary power supply Diesel engine fuel Coolant preheater prelubrication Control panel Battery charger Consumers of the UPS load are supplied directly by the mains  The choke suppresses voltage interference caused by static discharge, commutation fall-  off, overvoltage or upper harmonics Equalizes unbalanced load  Diesel engine stops, synchronous machine runs as a motor  HITZINGER GmbH  54

NBDK – Energy Flow Diagram Mains Failure Mains input consumer Active power kW Reactive power kVAR Auxiliary power supply Diesel engine Active power kW fuel Quick start Coolant preheater prelubrication Control panel Battery charger The UPS alternator supplies the consumer load via the stored kinetic energy until the  diesel engine has reached the nominal speed and can deliver full load Diesel engine is accelerated via quick start  KIN module starts to charge  HITZINGER GmbH  55

NBDK – Energy Flow Diagram Diesel Operation Mains input consumer Active power kW Reactive power kVAR Auxiliary power supply engine Diesel fuel Friction losses Coolant preheater prelubrication Control panel Battery charger The diesel engine supplies the UPS load via the alternator  Energy is also transferred to the kinetic module (to charge the KIN module and  compensate the losses) HITZINGER GmbH  56

NBDK – Energy Flow Diagram Mains Return Active power kW Mains input consumer Reactive power kVAR Reactive power kVAR Auxiliary power supply Die s el engine fuel Friction losses Coolant preheater prelubrication Control panel Battery charger Synchronization to the mains frequency  Transfer of the UPS load via the choke to the synchronized mains  Shutdown of the diesel engine after a cooling-down period  Machine returns to stand-by operation  HITZINGER GmbH  57

NBDK – Performance Tests Software - Simulations Test Cabine - Measurements 200 ms 100 0 HITZINGER GmbH  58

NBDK – Performance Mains Failure Simulation Mains Failure Measurement Tolerances NBDK: Frequency: ± 1% Voltage: ± 10% 200 ms 100 0 HITZINGER GmbH  59

NBDK – IT Power Systems Control and Monitoring HITZINGER GmbH  60

Control and Monitoring UPS SYSTEM with EPS ROOM EPS ROOM Office POWERCON Controller POWERCON Controller +S1 +S1 POWERCON [EPS] MAIN MAIN SWITCHBOARD SWITCHBOARD -Q13 -Q13 -Q11 -Q11 -Q12 -Q12 Mains Mains TO TO CONSUMER CONSUMER System 2 System 2 System 1 System 1 Mains Mains Consumer Consumer MONITORING MONITORING MONITORING System 2 System 2 UPS1 UPS1 Display Powercon 2 Display Powercon 2 Alternator Alternator K06203V01BL01 K06203V01BL01 & & & OPERATION OPERATION OPERATION RS232/485 - power Converter Dieseloperation; U1=380V; U2=380V Diesel operation; U1=380V; U2=380V monitoring SYSTEM 2 SYSTEM 2 SYSTEM 1 SYSTEM 1 Mains input Alternator output HITZINGER GmbH  61

Control and Monitoring HITZINGER GmbH  62

Control and Monitoring HITZINGER GmbH  63

NBDK – IT Power Systems System Configurations HITZINGER GmbH  64

System Configurations TIER Requirements Summary TIER I TIER II TIER III TIER IV Active Capacity Components N N+1 N+1 N after any failure to Support IT Load Distribution Paths 1 1 1 active and 1 2 simultaneously alternative active Concurrently Maintainable No No Yes Yes Fault Tolerance No No No Yes (single event) Compartmentalization No NO No Yes Continuous Cooling Load density Load density Load density Yes (class A) dependent dependent dependent HITZINGER GmbH  65

System Configurations TIER Requirements Summary TIER I TIER II TIER III TIER IV Single source Single source Double source Double source No redundancy After „N+1“ 2 x „N“ Each N+1 „A - B“ -supply Path A Path B Path A Path B Enduser availability Enduser availability Enduser availability Enduser availability 99,67 % 99,75 % 99,98 % 99,99 % Enduser downtime Enduser downtime Enduser downtime Enduser downtime 28,8 h 22,0 h 1,6 h 0,8 h First introduced First introduced First introduced First introduced 1960-1970 1960-1990 since 1990 Since 1994 HITZINGER GmbH  66

System Configurations Example: Parallel Configuration Example:  Two single units paralleled , one Utility Bypass- CB System configuration:  Parallel -1MCB -2MCB A1 A2 System components:  (N+I) KIN KIN 2 + 0 Number of paths:  G G (P) -1CCB -2CCB -BCB 1 D D Description:  N… number of UPS needed to supply the load I… number of redundant units Critical P .. number of paths load 1 HITZINGER GmbH  67

System Configurations Parallel Configuration, N  Parallel Configuration To achieve a higher level of output availability Utility in N or N+1 configuration N: System components ; paths 3 ; 1 ; (Tier1) (unit A1+A2+A3 needed to supply the load) -1MCB -2MCB -3MCB A1 A2 A3  KIN KIN KIN Number of units: Low voltage- limited due short-circuit power -MBCB (8MWconfiguration) G G G Middle voltage- nearby unlimited -BCB -1CCB -2CCB -3CCB D D D  Further Configuration: Further configurations are simplified without manual Bypass-CB`s or additional switching devices Critical load 1 HITZINGER GmbH  68

System Configurations Parallel Configuration, N+I Parallel Configuration  To achieve a higher level of output availability in N or N+1 Utility configuration N+I : +1 System components ; paths -1MCB -2MCB -3MCB C1 A1 A2 2+1 ; 1 ; (Tier2) A1+A2 >= load, KIN KIN KIN A1+C1 >= load, A2+C1 >= load, G G G -1CCB -2CCB -3CCB -BCB Key benefits:  D D D -Simple design -Small number of components -Easy Expandable Drawbacks:  -Single point of failure, failure on the common bus bar affects the Critical load 1 consumers/load HITZINGER GmbH  69

System Configurations Isolated Configuration Isolated Configuration  There is a higher level of output availability possible, due Utility independent/individual load supply +1 N+I : -1MCB -2MCB System components ; paths A1 B1 1+1 ; 2 ; (Tier3) A1 >= load, KIN KIN A2 >= load, G G Key benefits: -1CCB -1BCB -2CCB -2BCB  -This kind of system configuration D D eliminates the single point of failure -Higher number of components A B Drawbacks:  -Higher Acquisition costs Critical Critical load 1, load 1, -Higher Operating costs Path A Path B Critical load 1 HITZINGER GmbH  70

System Configurations Isolated Parallel Redundant Configuration Isolated Parallel  Utility Utility Redundant Configuration +1 +1 -1MCB -2MCB -3MCB -4MCB A1 C1 B1 C2 KIN KIN KIN KIN G G G G -3CCB -4CCB -1CCB -2CCB -BCB -BCB D D D D A B Critical Critical load 1, load 1, Path B Path A Critical load 1 Highest level of possible output availability (N+I)+(N+I) : System components ; paths | (1+1)+(1+1) ; 2 ; (Tier4) Shown in this special configuration - each unit (A1,C1,B1,C2) able to supply the load. HITZINGER GmbH  71

System Configurations Isolated Parallel Configuration Isolated Parallel Configuration  Utility Utility N+I : System components ; paths 1+1 ; 2 ; (Tier3) Utility B – High Availability A1 >= load, +1 A2 >= load, -1MCB -2MCB A1 A2 KIN KIN Key benefits:  -This kind of system uses the high G G availability of a second Utility -This kind of system configuration -1CCB -2CCB -BCB eliminates the single point of D D failure -Higher number of components - If there are two independent grid‟s available it is a really Operating costs optimized solution Critical Critical Drawbacks:  load 1, load 1, Path A Path B -High Acquisition costs Critical load 1 -High Operating costs HITZINGER GmbH  72

System Configurations Isolated Parallel Configuration Isolated Parallel Configuration  All units are connected to a common bus (IP-Bus) by isolation chokes Utility In case of short-circuit on the bus or unit failure, this chokes minimize fault currents to an acceptable level -1MCB -2MCB -3MCB A1 A2 A3 N+I : KIN KIN KIN System components ; paths G G G 1+1 ; 1 ; (Tier2) -1CCB -BCB -2CCB -BCB -3CCB -BCB D D D power outage of two units >= total load, Key benefits:  -1CHCB -2CHCB -3CHCB -Load management for better efficiency possible, this depends on the systems load configuration. Drawbacks:  -High Acquisition costs -not comparable to a totally isolated Critical Critical Critical system configuration, small load 1 load 2 load 3 influences in case of bus bar failure HITZINGER GmbH  73

System Configurations Isolated Parallel Configuration Isolated Parallel Configuration  All units are connected to a common bus (IP-Bus) by isolation chokes Utility In case of short-circuit on the bus or unit failure, this chokes minimize +1 fault currents to an acceptable level -1MCB -2MCB -3MCB C1 A1 B1 N+I : KIN KIN KIN System components ; paths G G G 1+1 ; 2 ; (Tier3) -1CCB -BCB -2CCB -BCB -3CCB -BCB D D D power outage of two units >= total load, Key benefits:  -1CHCB -2CHCB -3CHCB -Load management for better efficiency possible, this depends on the systems load configuration. Drawbacks:  -High Acquisition costs -not comparable to a totally isolated Critical Critical Spare load 1, load 1, system configuration, small Path B Path A Critical influences in case of bus bar load 1 failure HITZINGER GmbH  74

System Configurations Parallel Configuration, 3units, STS Parallel Configuration  Additional unit is operating parallel to the 2 load bus bars, they are Utility connected due Static Load Transfer Switches. In case of unit failure the static transfer switches to the remaining -1MCB -2MCB -3MCB A1 C1 B1 available supply. KIN KIN KIN N+I : System components ; paths G G G 1+1 ; 1 ; (Tier2) -BCB -1CCB -2CCB -3CCB -BCB D D D A1 or B1 or C1 >= load1 or load2, Key benefits:  -Redundant UPS is able to supply each load without influencing to the other consumers. -STS -STS -Maintenance A B Drawbacks:  -available only in the low voltage range Critical Critical load 1 load 2 HITZINGER GmbH  75

System Configurations Parallel Configuration, STS Isolated Parallel  Configuration Utility A1 C1 B1 -1MCB -2MCB -3MCB KIN KIN KIN G G G D D D -1MCB -1ACB -1CCB -BCB -2MCB -2ACB -2CCB -BCB -3MCB -3ACB -3CCB -BCB EPS EPS EPS EPS EPS EPS Non-critical load C Non-critical load A Non-critical load B A A B B C C -STS A1 -STS A2 -STS B1 -STS B2 -STS C1 -STS C2 Critical Critical Critical Critical Critical Critical load 1, load 1, load 3, load 3, load 2, load 2, Path C1 Path C2 Path A1 Path A2 Path B1 Path B2 Critical Critical Critical load 1 load 2 load 3 High level of possible output availability The Availability depends from load conditions HITZINGER GmbH  76

System Configurations Parallel Configuration Isolated Parallel  Configuration Utility A Utility B +1 +1 -1MCB -2MCB -3MCB -4MCB A1 A2 B1 B2 KIN KIN KIN KIN G G G G -1CCB -1CCB -2CCB -2CCB -BCB -BCB -3CCB -3CCB -4CCB -4CCB -BCB -BCB A B A B A B A B A B A B D D D D A A B B -CB -CB A-B B-A Critical Critical load 1, load 1, Path A Critical Path B load 1 Highest level of possible output availability (N+I)+(N+I) : System components ; paths | (1+1)+(1+1) ; 2 ; (Tier4) HITZINGER GmbH  77

NBDK – IT Power Systems Hitzinger & on site service / maintenance / repair HITZINGER GmbH  78

Hitzinger Services  Competent and experienced service team  24/7/365 service hotline  Worldwide services available through agents / representatives  Available on site within 48 hours (in middle east countries with no visa requirements) HITZINGER GmbH  79

Hitzinger Maintenance Organisation Total work experience: > 300 years! HITZINGER GmbH  80

Hitzinger Maintenance More Reliability: Less maintenance Choose a solution which facilitates maintenance  Low annual service requirements  Automatic lubrication options  Module arrangement gives better KIN module access facilitating:  Easier routine maintenance  Quicker overhauls HITZINGER GmbH  81

Maintenance Overview Qualification : Level M1 … trained personal (customer operator) Level M2 … qualified personal (Hitzinger service and maintenance partner) Level M3 … specialist of DDUPS manufacturer and service and maintenance partner Operation mode : A … automatic M … maintenance T … test HITZINGER GmbH  82

Maintenance Schedule M1 Unit to be maintained Operation Daily 1 Monthly 4 Months 1 Year Max. Years Qualifi- Special period Mode Tasks cation or time limitation Visual inspections - alternator M1 A    - kinetic energy module - re-greasing unit - cooling system - fuel system - exhaust system - ducts Bearing re-grease - electromagnetic clutch M1 A automatic - alternator - kinetic energy module (outer bearings) HITZINGER GmbH  83

Maintenance Schedule M2 Unit to be maintained Operation Daily 1 Monthly 4 Months 1 Year Max. Years Qualifi- Special period Mode Tasks cation or time limitation Functional tests, visual inspection and cleaning - Alternator and KIN module M2 T  - automatic re-greasing unit   - cooling and fuel system   - local and master control panels  Electromagnetic Clutch Check and re-adjust gap clearance M2 M   Readjustment after 100 HSS Replace friction linings M2 M 10 Theoretical figure Kinetic Energy Storage Unit Change lubrication oil of inside bearings M2 M   Max. 3500 AWH HITZINGER GmbH  84

Maintenance Schedule M3 Unit to be maintained Operation Daily 1 Monthly 4 Months 1 Year Max. Years Qualifi- Special period Mode Tasks cation or time limitation Kinetic Energy Storage Unit Replace KIN-module inner M3 M 5 Theoretical figure bearings HITZINGER GmbH  85

Hitzinger Services in Turkey  Local support through Powerelektronik Powerelektronik has various UPS installations above  20KVA maintenance and service team for UPS  highly qualified trained engineers for UPS and  electronic equipments support Our main office is Istanbul  Hitzinger has already set a training program for 3  engineers from Powerelektronik in Linz / Austria HITZINGER GmbH  86

Spare parts availability Stock items at Powerelektronik  Bearings  Clutch linings  PLC‟s incl. input and output modules  KIN control box  AVR  Relays  Battery chargers  Special tools HITZINGER GmbH  87

Hitzinger Services in Turkey Power Elektronik SAN.VE TIC.LTD.STI Armağanevler Mh. Samanyolu Cd. İpekçi Sk. No : 12 Ümraniye ISTANBUL Power Elektronik SAN.VE TIC.LTD.STI ANKARA BÖLGE MÜDÜRLÜGÜ 2. Cadde 1315. Sk. No: 12/A-14 Asagi Övecler, Cankaya ANKARA HITZINGER GmbH  88

NBDK – IT Power Systems Summary and references HITZINGER GmbH  89

Summary Lower Total Cost of Ownership  Direct savings:  Total system efficiency ~ 94-96%  No additional heat input into the facility  No Air Conditioning or infrastructure costs. Just ambient air.  No major consumables to change during service life  Indirect savings:  Redefined space requirements  Less expensive “garage” style building  Reduced space requirements  MINIMISE ENVIROMENTAL IMPACT  Total system efficiency minimises GHG emissions  Eliminate the hazardous waste of batteries  RELIABILITY  Simple design low component count: System MTBF 1.000.000+ hours  Redundant diesel start  Completely brushless design  Designed for 25 yr service life  Vibration monitoring HITZINGER GmbH  90

Summary DYNAMIC ELECTRICAL PERFORMANCE Achieved by Hitzingers own tailored range of synchronous alternators  Power capacities 150kVA – 2.5 MVA  Scalability – 11 kV models  High fault clearing / overload capability  Mains filtering and harmonics attenuation  Dynamic power factor correction  Operates with leading, lagging or unity PF devices  Completely brushless design Energy Storage Achieved by Htizingers range of KIN modules  Wide range of power capacities 150kVA – 2.5 MVA  Lowest RPM design increases bearing service life  Rapid discharging and recharging without degradation  Easy access for maintenance and overhaul  Vibration monitoring HITZINGER GmbH  91

EN ISO 9001 Certificate HITZINGER GmbH  92

Italy Memc - Meran: 2 x 340 kW 2 x 150 kW Mechanical UPS – uninterrupted drive of rotating machines (e.g. pumps). STMicroelectronics Catania: 4 x 1750kVA HITZINGER GmbH  93

Greece International Airport Athens: 4 x 450kVA HITZINGER GmbH  94

Great Britain Governmental Data Centers 2 x 2000 kVA (dual output) 2 x 2000 kVA (dual output) 2 x 475 kVA (dual output) HITZINGER GmbH  95

Great Britain Data Centre – Global Switch London (22MVA in parallel Operation) 11 x 2000 kVA (11kV) HITZINGER GmbH  96

Austria More than 10 MVA UPS power installed all over Austria. General Hospital Linz 1 x 150 kVA 1 x 450 kVA Hospital Braunau 1 x 630 KVA 1 x 350kVA 1 x 800 kVA HITZINGER GmbH  97

Austria Austrian Parliament Vienna: 1 x 1225 kVA HITZINGER GmbH  98

Switzerland Prodor Piaget SA Geneva 1 x 850 kVA Data Centre Bern 3 x 2000 kVA HITZINGER GmbH  99

Northern-Cyprus & Slovenia International Airport Lefkosa 1 x 325 kVA International Airport Ljubljana 1 x 500 kVA HITZINGER GmbH  100