siemens.com/medium-voltage-switchgear High-current- and generator circuit breaker switchgear Answers for infrastructure.

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1 siemes.com/medium-voltage-switchgear High-curret- ad geerator circuit breaker switchgear Aswers for ifrastructure.

2 HB1 Horizotal Busbar Geerator Switchgear HB3 Phased Segregated Geerator Switchgear High-curret- ad geerator circuit breaker switchgear from Siemes your beefits Experiece ad customer orietatio As a pioeer i developmet of vacuum switchgear techology for reliable trasmissio ad distributio of electrical power i medium voltage, Siemes has the competece ad solutios for the uique switchig duties of geerator circuits. I order to serve the high demads of the mergig market for power geeratio sets i the rage of 30 MVA at 10.5 kv up to 200 MVA at 18 kv, Siemes has optimized its portfolio of high curret ad geerator circuit breaker switchgear. The result is a rage of switchgear types which are versatile i terms of fuctioality, istallatio ad coectio. 3AH38 / 37 vacuum geerator circuit breaker Type tested accordig IEEE stadard C High DC-compoets > 65 % Maiteace free for 10,000 operatig cycles MTTF (mea time to failure) of 40,000 years Proof of suitability for the switchig applicatio Computer aided calculatio ad simulatio of short time withstad ad peak curret uder cosideratio of IEC Dimesioig of eclosure ad curret path to withstad dyamic ad thermal impact of cotiuous ad short circuit currets Verificatio of breaker iterruptio capabilities uder cosideratio of delayed curret zero Persoel safety ad reliability Desig ad costructio accordig IEC ad IEC , type tests accordig IEC Iteral arc classificatio (IAC) is available for eclosures of switchgear types HB1 ad VB1 All switchig devices to be visually ispected ad operated with all doors ad covers i closed positio. No explosio i the ulikely evet of a fault i the vacuum iterrupter of geerator circuit breaker type 3AH38 / 37 VB1 Vertical Busbar Geerator Switchgear HIGS Highly Itegrated Geerator Switchgear

3 Idepedet, accredited testig statio Member laboratory of STL ad LOVAG Siemes AG, Eergy Sector CLIENT Power Distributio Divisio Medium Voltage Mozartstraße 31c Erlage GERMANY Siemes AG, Eergy Sector MANUFACTURER Power Distributio Divisio Medium Voltage GERMANY Metal-eclosed AC switchgear TEST OBJECT (Geerator AC switchgear) HB1 TYPE Test sample SERIAL NO. Rated voltage U r 17.5 kv RATED CHARACTERISTICS Rated frequecy f r 50/60 Hz GIVEN BY THE Rated ormal curret (for IP2X) 6300 A CLIENT Rated peak withstad curret I p 198 ka (mai circuits ad 3-phase earthig) Rated peak withstad curret I p 164 ka (1-phase earthig circuits) Rated short-time withstad curret mai circuits 72 ka, 1 s 63 ka, 3 s 3-phase earthig circuits 72 ka, 1 s 1-phase earthig circuits 63 ka, 1 s IEC : NORMATIVE DOCUMENT Short-time withstad curret ad peak withstad curret tests RANGE OF TESTS PERFORMED 1 Jue ad 24 August 2010 DATE OF TEST The ratigs of the test object related to the scope of test have bee TEST RESULT proved. The tests have bee PASSED. H. GLABSCH Seior egieer Berli, 1 Jue 2011 M. THOM Test egieer i charge Idepedet test laboratory, accredited by Deutsche Akkreditierugsstelle Techik (DATech) e.v. i the fields of h.v. apparatus ad switchgear, power cables ad power cable accessories, l.v. apparatus ad switchgear, istallatio equipmet ad switchig ad cotrol equipmet. Istitut Prüffeld für elektrische Hochleistugstechik GmbH (IPH Berli) is a subsidiary of CESI S.p.A, Mila. Cotrol pael Flexible coectio modes Switchgear selectio guide HB1 HB1-O VB1 U r (kv) up to 24 up to 24 up to 24 I r (A) up to 6700 up to 4800 up to 5500 T3 3 G Not scope of supply T1 3 (ka) / Ip (kap) up to 72 / 200 up to 72 / 200 up to 72 / 180 IAC up to A FLR 72 ka / 0.1 s up to A FLR 72 ka / 0.1 s Istallatio Idoor Outdoor Idoor Excitatio trasformer / SFC feeder Excitatio trasformer / SFC coectio Auxiliary trasformer feeder Auxiliary trasformer coectio Multiple geerator icomig feeder Multiple outgoig feeder Cable coectio Busbar coectio lateral side Busbar coectio top / bottom Q5 Q81 T5 C5 C81 M M Q01 M F1 C1 W1 Q1 M T6 W1 Temporary short circuit bridge -T1;-T3: -T5; -T6: -Q5; -Q81: -Q1: -Q01: -F1: -C1: -W1: Curret Trasformers Voltage Trasformers Earthig Switch Lie Discoector Vacuum Geerator Circuit Breaker Surge Arresters Surge Capacitors Short-Circuit Bridge Vacuum geerator circuit breaker Proof of suitability Persoel safety ad reliability Seismic tests o 11kV switchgear Ratig: 17.5 kv 4000A 72kA/1s Test report TA34-PB-139/11-01 TYPE TEST REPORT NO Seismic Qualificatio Test Report TA34-PB-139/11-01 Seismic tests o 11kV Switchgear Ratig: 17.5 kv 4000A 72kA/1s Customer: SIEMENS AG E D MV 31 IABG Order o.: The results i this test report are valid oly for the tested specime.

4 HB1 Horizotal busbar geerator circuit breaker switchgear Geeral features: Idoor applicatio IP40 ad IP54 Outdoor applicatio IP54 Coectio by meas of cables Coectio from bottom, top or lateral side (metal eclosed bus ducts or fully isulated busbar) Coectio from lateral side for isolated phased bus duct IPB 500 mm phase distace Optioal coectio for SFC starter or excitatio trasformer (geerator side) Optioal coectio for aux.-trasformer (trasformer side) U r 50 Hz * 17.5 kv 24 kv 2320 mm 425 mm 800 mm 4000 mm + X U d (PFWV) 50 kv 60 kv U p (BIL) 110 kv 125 kv I r at IP40 / IP / 2300 A 4200 / 3300 A 5200 / 3700 A 6700 / 4700 A 2200 mm / I p 50 ka / 125 kap 63 ka / 160 kap 72 ka / 180 kap ** IAC available A FLR 63 ka / 0.1 s A FLR 63 ka / 1 s A FLR 72 ka / 0.1 s 1800 mm X will be defied depedig o the type of coectio with the switchgear VB1 Vertical busbar geerator circuit breaker switchgear Geeral features: Idoor applicatio IP40 ad IP54 Coectio by meas of cables Coectio from bottom or top by meas of metal eclosed bus ducts or fully isulated busbars Optioal outgoig feeder with circuit breaker or fuse load break switch for various applicatios such as: SFC starter, excitatio, auxiliary trasformer, brake switch Multiple geerator switchgear, suitable e.g. for 2 geerators, 4 trasformers, 1 Bus sectioalizer Suitable for istallatio iside cotaiers 2200 mm 6150 mm 400 mm U r 50 Hz * 17.5 kv 24 kv U d (PFWV) 42 kv 60 kv U p (BIL) 95 kv 125 kv I r at IP40 / IP / 2300 A up to 5500 / 4500 A 1600 mm + Y / I p IAC available 50 ka / 125 kap 63 ka / 160 kap 72 ka / 180 kap A FLR 50 ka / 0.5 s A FLR 72 ka / 0.1 s X X = Pael with from 600 mm to 1100 mm. X will be defied depedig o the pael fuctioality * 60 Hz o request ** 200 ka o request

5 HB3 Phase-segregated geerator circuit breaker switchgear Geeral features: Air-isulated, metal-eclosed, phase segregated geerator breaker switchgear Fixed mouted circuit breaker with lie discoector for coectio to phase isulated busduct systems (IPB) Optioally available with auxiliary trasformer or excitatio feeder U r 50 Hz * 17.5 kv 24 kv U d (PFWV) 50 kv 60 kv 1900 mm U p (BIL) 110 kv 125 kv I r at IP A / A / I p 80 ka / 220 kap 1170 mm 2650 mm HIGS Highly itegrated geerator circuit breaker switchgear Geeral features: Air-isulated, metal-eclosed, o-phase segregated geerator breaker switchgear Directly istalled at the geerator termial Itegrated eutral side treatmet Optioally available with itegrated auxiliary trasformer feeder HIGS 2400 HIGS 3200 U r 50Hz * 15 kv 12 kv U d (PFWV) 38 kv 28 kv U p (BIL) 95 kv 75 kv I r at IP54 / IP A 3200 A / 3700 A Aux.-feeder / I p up to 800 A 50 ka /125 kap 3 x 62 MVA GT power plat i Swede Advatage: HIGS as itegral part of the geerator-set provides cost savig due to reductio of: 2500 Space requiremets Coectio poits Istallatio Customized Cotaier Solutio Geeral features: Customizig of VB1-switchgear to be istalled iside cotaiers for severe ambiet coditios Complete solutio icludig cotaier ca be provided VB1-cotaier for desert ambiet coditios of 58 C i Abu Dhabi

6 More tha 900 uits i geerator breaker applicatios istalled worldwide Siemes AG Ifrastructure & Cities Sector Low ad Medium Voltage Divisio P.O. Box Erlage, Germay For more iformatio, please cotact our Customer Support Ceter. Phoe: * Fax: CITIES* (Charges depedig o provider) support.ic@siemes.com Siemes AG 2011 Prited i Germay TH WS 1211 All rights reserved. Trademarks metioed i this documet are the property of Siemes AG, its affiliates, or their respective owers. Subject to chage without prior otice. The iformatio i this documet cotais geeral descriptios of the techical optios available, which do ot always have to be preset i idividual cases. The required features should therefore be specified i each idividual case at the time of closig the cotract.