BENEFITS. DKD certified calibration of measuring channels available.

HiAS 743 System Capturing the complete impulse enables to obtain information about the test object faster and in more detail. HiAS 743 is the tool, which utilizes latest technology high amplitude and fast time resolution to perform this task. The HiAS 743 is a multi-channel precision digital impulse analyzing system of the highest performance class. Measurement evaluation and analysis of impulse voltages and currents can be performed according to IEC 61083, IEC 60060, IEC 60076, IEC 60099, and IEC 60230, the relevant standards for High Voltage Impulse Testing. Automatic evaluation of the impulse shapes specified in the above standards, as well as a manual evaluation mode are available. The HiAS 743 is ready for integration in a complete impulse voltage test system. The system can be fully controlled by a host computer via standard interfaces or, to reduce interference effect, via an optical link. FEATURES Impulse voltage tests in industry are mainly used to control the quality of any high voltage equipment. Usually the test object is subjected to a fast voltage impulse. A defined impulse wave shape is applied to the test object. Changes in the wave-shape caused by the test object are used for detection of insulation faults. This procedure is commonly used for routine testing of transformers, bushings or other high voltage equipment. The HiAS 743 is an excellent and reliable tool for accurate measurement of all kinds of wave-shapes. Haefely Test AG also manufactures complete impulse voltage test systems to meet most requirements. This impulse generation capability plus impulse measurement offers a complete solution to modern testing needs. HiAS 743 incorporates many of our own experiences in the high voltage business, plus those of our customers. Since many years our R&D group continuously develops further the system software. Therefore this system has the most proven software in the market. Curve evaluation for example is based on databank containing hundreds of real curve data, measured in different environment and test setups all over the world. Compatibility to previous Impulse Analyzing Systems HiAS 743 / HiAS 742 and new control systems does save your investment. Old measurement data is not lost. HiAS 743 can be fully integrated into HAEFELY controls. The engineering team guarantees support, calibration etc. now and in the future. 12 bit real vertical resolution at 120 MS/s 128k memory point depth (for 12 bit data) Automatic evaluation of all common impulse shapes and their parameters Loaded with functionalities: Difference, Parameter Tolerance, FFT, Transfer, Coherence, Comparison, Step response, Smoothing, Advanced Evaluation and many more Fulfils IEC 61083-1 & IEC 61083-2 standards Clear documentation and reporting including, Test information, notes, grouping, etc. BENEFITS Easy, intuitive understandable and useable graphic user interface (GUI) Automatic test report generation from the integrated reporting tool with user definable layout, logo insertion, etc. Manual re-evaluation tool for all impulse parameters. Automatic hardware calibration with additional calibrator RIC422-4 (option) Easy re-calibration and system upgrade due to modular and independent hardware design. DKD certified calibration of measuring channels available. Haefely has a policy of continuous product improvement. Therefore we reserve the right to change design and specification without notice. LL_HIAS743_0804_LWA.doc 1/ 7

APPLICATIONS testing of: Power Transformer Switchgears Surge Arrestors Research & Development National High Voltage Laboratories Universities etc. MEASUREMENT (DIGITIZING) FEATURES Real 12 bit amplitude resolution, a factor of 4 better compared to a common 10 bit system. Together with the powerful software analysis tools very detailed impulse diagnostics are possible. The effect of amplitude resolution on measurement accuracy is shown for 8, 10 and 12 bit recorders using a signal with 2 % full scale deflection. The difference between the original signal and a 12 bit recorder is negligible. Variable memory depth up to 128k data points. A maximum of 128'000 samples can be recorded. A variable memory depth allows one to choose a suitable record length and helps to avoid unnecessarily large file sizes. 120 MS/s and an analogue bandwidth of 50 MHz are more than enough to capture all impulse shapes in high voltage test labs. High frequency signal components usually have very low amplitudes. High amplitude resolution is therefore critical. The highest bandwidth limit is usually determined by the external high voltage divider higher bandwidths and sampling-rates in the digitizer create spurious higher frequency noise. Excellent linearity and low noise level. All tests of this 12 bit system achieve far better results than required by the related standards! A complete Record of Performance is provided with every measuring channel built into a system to ensure highest performance and reliability of the investment. ANALIZING FEATURES DKD certified measuring channel calibration is also available on request. Impulse shapes are analyzed automatically in full accordance with the standards. The HiAS enables activation of only those impulse shapes and parameters, which are really needed. Define user specific interface. Manual evaluation on every newly recorded or re-loaded impulse can still be performed for special cases - The best mean curve generator remains the human eye. Example of single points resolution @ 120 MSPS. The software guides you through the process. E.g. if the peak point (100 %) is moved the 90 %, 50 % and 30 % points are moved automatically and the influence on all parameters is shown in real-time. Haefely has a policy of continuous product improvement. Therefore we reserve the right to change design and specification without notice. LL_HIAS743_0804_LWA.doc 2/7

Multi-functional display. Real-curve 1, mean-curve 2, difference (mean - real), all points 3, help-points 4 and lines 5 etc. to calculate the parameters are shown in the curve display. The parameter calculation method is fully transparent. The evaluation of parameters is graphically documented what you see is what you get (WYSIWYG). The display can be zoomed, using the mouse, to resolutions where the individual data points can be seen. Transfer Function (option): advanced analysis e.g. for transformer testing. Additional information is available (paper E1-73 Malewski et al). colored curves An Online Toolbox can be opened by a single click, which gives access to all curve related functions such as: Stepped zooming back, preview printout, print curve, copy to clipboard, recalculation (auto & guided), manual evaluation, signal processing (smoothing), measurement cursors, grid normalization, grid optimization, FFT calculation, edit related curve information, add memos, save complete measurement, save window, save data as ASCII. FUNCTIONS Difference Function to subtract two wave-shapes includes auto-fitting and auto-zooming. Curves can be selected from the database or auto-calculation sequences can be defined with pass/fail output. Coherence Function (option): white curve Comparison of impulses performed at a reduced test level with those taken at full test level. This allows more sophisticated diagnostics of test objects or complete test fields. Additional information is available (paper E1-82 Malewski et al) Comparison Measurements (option; supplied with DKD certified measuring channels). Determination of the assigned scale factor, reference method: The assigned scale factor and dynamic behavior of the measuring system shall be determined by comparison with a reference system (IEC 60060-2) The linearity test: Values of the scale factor of the measuring system shall be measured at the minimum and maximum voltages (or currents) of the operating range and at three approximately equally spaced voltages or currents between these extremes. The reference method is by comparison with a reference measuring system. (IEC 60060-2) Parameter Tolerance Analysis to enter a max. limit on evaluated parameters (e.g. U pk ± 5 %). Define automated tolerance calculation sequences with pass/fail output. Sequence Function (option) enables full test sequences to be automated for applications such as distribution transformer production without system operators. The HiAS 743 REF supports comparison measurements series with all required calculations, visualization and reporting (with automated export to Excel ) Haefely has a policy of continuous product improvement. Therefore we reserve the right to change design and specification without notice. LL_HIAS743_0804_LWA.doc 3/7

Step response evaluation. Internal measurement including random interleaved sampling (RIS) and external measurements (e.g. from a giga sample scope) can be loaded and analyzed E.g. select Shunt and enter a terminal value of 330 A/V. A measuring circuit image, the chosen input range and the correct input connector are indicated as well as the hint to use a matching resistor. Measurement & test information, user notes, grouping & sub-grouping, headers for clear documentation and reporting of saved impulses. Information can be added to a specific pulse and saved in a clear, customized data structure. ADDITIONAL FEATURES Useful items such as: loading external files (scope,.tdg, 742 data, stepdata, ASCII,.txt), impulse counter, pre-setable normalized and/or optimized scaling, hardware check information, etc. are implemented in the control software. History stack to search non-saved measurements. The last 10 complete measurements are saved in dynamic memory. For instant recall open history and click on the required pulse. Office software (option) for training or analysis. Identical software that runs without the HiAS 743 hardware enables off-line analysis on a computer out of the lab. This can also help for staff training. Cut & Paste. The HiAS 743 software runs under the Windows platform. This ensures state-of the-art performance. Pictures of measurement curves are saved as WMF (Windows Metafile) that allows cut and paste functionality between other programs such as Microsoft Word. Reporting tool enables selection and combination of any impulse measurement in the HiAS database. To assist in evaluating the correct impulse the actual measurement curve for the selected data is displayed before starting report generation. Predefined report templates can be chosen or a template can be modified to create a customer specific report layout. All standard Windows features are included. Self explanatory menus and symbols, quick access buttons, on-line help and hint texts for all functions, graphically supported dialogue boxes. Haefely has a policy of continuous product improvement. Therefore we reserve the right to change design and specification without notice. LL_HIAS743_0804_LWA.doc 4/7

CALIBRATION & STANDARDS SYSTEM DESIGN Fully automatic calibration together with a (optional) Haefely reference impulse calibrator RIC 422. Full range IEC 61083 calibration with automatic reports, overnight without further manual operations, is possible. Amplitude deviations can be entered to provide automatic correction against a nominal standard calibrator. As a result the best achievable accuracy is obtained without any further calculation. HiAS 743 System consists of a main unit, containing the system CPU, control computer, power supplies, data storage, interfaces and 4 slots for the measuring channel inserts (digitizers). All accuracy sensitive elements are combined in one small unit per channel. Also supplied are peripheral devices printer, monitor, keyboard and mouse. Main unit and channel inserts are normally mounted in a desk console. Special shielding against EMC disturbances as well as a power supply are included. In put CH1 CH2 CH3 CH4 RIC 4 22 Re fer en c e Im pu l se Ca li bra to r I 0 C a lib ra t e d PRI NTE R Hig h -v o lt a g e ON rt ig g e r o u t p u t s Hig h Re o s l uti o nimp ul se Ana l yzin g Syste m HiAS743 Hig h-v olt a ge i npu ts 1 2 Hig h-vol ta g e in pu ts 2 0 0 0 Vp k m a x 3 Hig h-vol tag e in pu ts 4 Ke e p f a n fi tl e r c l e a n. Hig h-vo lt ag e in pu ts COM 2 M ( o use ) H IGH V OLT AGE T EST 2000V pkm ax / 2/ 0 p F / 2/ 0 p F / 20pF LPT1 P ( ri nt er) LV IE EE4 88 C ( o ntr o l er) HV COM 1 O F Po we r Mo nit o r St a r S /t t o p / 20pF Ke yb oa rd Lo w-vo lt a ge i npu t L ow-vo lt a ge i np ut Rese t 1 00k / 20pF 1 5 Vp k m ax 100k / 20pF 1 5 Vp k m ax 1 0 0 k / 2/ 0 p F Aux 1 10 0k/ / 20pF Au x3 Po wer sup pl y Po wer sup p ly Power su pp l y Power s upp l y Externa l tr i gge r i np ut Ex te n r al trig ge r in put Exte rnal tr ig ge r i npu t Exte rna l tr ig ge r i np ut Ke e p f a n fi tl e r c l e a n. Aux 2 Power of cr o n ti un e d efri rp o te c ti o n er p l ca e o yln w tih t h e sp ce fi ei d t yp e a dn r a ti gn o f fu se. Ma ni ta ni g or u n d il en to a v o di e el c citr a ls oh ck. Do n o tr e mo v e c o ve sr.re f re s re v ci ni g t o q u a fil ei d p e sr no n e.l < 5 0 V Sl : ope > 5 0 V L: e v e l 200V pkm ax < 5 0 V: Slo p e > 5 0 V: L e v e l 230V Ke ybo a d r 115V M a ni s F u se s : 3.1 5 A s ol w 6.3 A sl o w 8 5 V.. 2 6 4 V 5 0..6 0 H z ma x 4 0 0 A V Di g i itz e r nu it Dig i t iz e r u n it Di g i itz e r nu i t Di g i itz e r nu i t Po wer I / Ou n ti Vo tl a g e s e l e c t o r Ma i n s 1 1 5.V. 2 3 0 V 5 0. 6 0 Hz Fu s e : 1 0 As l o w F o cr o n ti n u e d f ri e p or t e c t oi n er p al c e o n yl w ti h t h e sp e c fi ei d t y p e a n d ar t i gn o f fu s e. Ma i n ta ni g or u n d l ni e to a v o di e l e c t cir a l sh o c k. Do n o t er mo v e c o v e sr. Re f e r s e r v ci i n g t o q u a l fi ei d p e sr o n e.l The advantage of this modular design is that a single measuring channel insert (digitizer) can be easily pulled out and send back for re-calibration while the system works with the other channels. So there is no down time on the system due to factory re-calibration. Standards HiAS fulfils and surpasses the requirements of IEC 61083-1 - A printed Record of Performance (for hardware) is shipped with every measuring channel IEC 61083-2 - A printed Record of Performance (for software-algorithms) is shipped with every software package. Performance check function is integrated in the standard software as well. IEC 60060, IEC 60076, IEC 60099, IEC 60230, IEC 60517, ANSI C 57.12.90, IEEE Std 4 - Based on these standards the complex parameter evaluation software of the HiAS has been developed. Easy re-calibration: Pull out, send and receive back a measuring channel insert. Haefely has a policy of continuous product improvement. Therefore we reserve the right to change design and specification without notice. LL_HIAS743_0804_LWA.doc 5/ 7

TECHNICAL SPECIFICATIONS System Number of channels 1...4 Printer Laser printer black & white; Color laser printer optional Monitor Desktop TFT flatscreen 19 System controller (build-in) PentiumIII, 256 MB RAM Internal operating system Windows XP (Office Software package runs under: Windows 98, 2000, XP) Analogue Part High voltage input Low voltage input Connections LEMO (RA4250) BNC Input divider 1 : 200 1 : 1 Input voltages 100 Vpp.. 1950Vpp 640 mvpp.. 11 Vpp Input ranges 14 (factor 1.26) 14 (factor 1.26) Overvoltage protection 2 kv 15 V Overvoltage tested 6 kvpp (1.2/50 µs, 10/700 µs) - Input impedance 2 MOhm // 20 pf 100 kohm // 20 pf Analogue bandwidth (-3dB) 50 MHz Triggering internal on slope or level external on slope and level Data Acquisition / AD-Conversion Amplitude resolution Sampling rate Memory depth Resulting measuring time Data Handling Real 12 bit (4096 LSB) 120 MS/s, 60 MS/s, 30 MS/s... 117 ks/s max. 128k data points (with 12 bit resolution) 220 µs, 450 µs, 900 µs, 280 ms Internal data exchange buffered AT-BUS Storage medium Floppy 1.44 MByte, 3.5" Harddisk 40 GByte CD RW Drive Remote control RS232, (optional optical converter) On request Ethernet, IEEE488 Operating Conditions Supply voltage 100 / 115 / 230 V Temperature range 10.. 40 C (Laser printer 10..32 C ) Relative Humidity 35.. 80 % Warm up time 35 minutes Mechanical Dimensions * 157 x 70 x 77.5 cm ( 62 x 28 x 31 ) Weight * Approx. 150 kg ( 330 lbs ) * including table and rack Overall Uncertainty Full and chopped impulses (SI, LI) Front chopped impulses (LIchopped) All time parameters (T1, Tp, Tc, T2, etc.) Standards ± 1 % U Peak ± 1 % U Peak ± 2 % in time Fulfils or surpasses the requirements of IEC 61083-1, IEC 61083-2 and IEC 60060-2 Record of Performance Full IEC 61083-2 and IEC61083-1 record of performance are supplied with every system respectively channel insert Calibration Fully automatic (with optional Reference Impulse Calibrator RIC 422-4, controlled by HiAS software) Certification DKD (Deutscher Kalibrierdienst) calibration and certification of measuring channel inserts optional available Haefely has a policy of continuous product improvement. Therefore we reserve the right to change design and specification without notice. LL_HIAS743_0804_LWA.doc 6/7

Re fer en c e Im pu l se Ca li bra to r St a r t/st o p H IGH V OLT AGE T EST Po we r Hig h -v o lt a g e C a lib ra t e d O F ON Tr ig g e r o u t p u t s HV L V RIC 4 22 Hig h Re so l uti o n Imp ul se Ana l yzi n g Syste m HiAS 743 Rese t Power Ke ybo a rd Hig h-v olta ge i npu ts 2 0 0 0 V p k m a x 0 I 2 M / /2 0 p F Po wer sup pl y 1 0 0 k / 2 0 p F Externa l tri gge r i np ut < 5 0 V :Sl o p e > 5 0 V :L e v e l Di g i tiz e r un it 1 Hig h-vol ta g e in pu ts 2 0 0 0 Vp k m a x 2 M / /2 0 p F Lo w-vo lta ge i npu t Po wer sup p ly 1 0 0 k / 2 0 p F Ex te rn al trig ge rin put 2 0 0 V p k m a x < 5 0 V: Slo p e Dig i t iz e r u n it CH1 CH2 CH3 CH4 2 Hig h-vol tag e in pu ts 2 M / 2 0 p F L ow-vo lta ge i np ut Power su pp l y 1 0 0 k / /2 0 p F Exte rnal trig ge ri npu t Di g i tiz e r un i t 3 In put Hig h-vo ltag e in pu ts Di g i tiz e 2 M / 2 0 p F Power s upp l y 1 0 0 k / / 2 0 p F Exte rna l trig ge r i np ut > 5 0 V: L e v e l r un i t 4 I / O u n it Ke e p f a n fi lt e r c l e a n. Ke e p f a n fi lt e r c l e a n. Au x 3 PRINTER Vo lt a g e s e l e c t o r IEEE4 88 (Co ntro l er) COM 2 (Mo use ) Aux 1 Fo rc o n ti nu e d fire pr o te c ti o n re p l ac e o nly w ith t h e sp ec if ie d t yp e a nd r a ti ng o f fu se. Ma in ta in g ro u n d li ne to a v o id e le c tric a l s ho ck. Do n o tr e mo v e c o ve rs.re f er s er v ic in g t o q u a lif ie d p e rs on n e l. 2 3 0 V 1 1 5 V M a in s F u se s : 3.1 5 A s lo w 6.3 A sl o w 8 5 V. 2 6 4 V 5 0..6 0 H z ma x 4 0 0 VA Aux 2 COM 1 Mo nito r F o rc o n ti n u e d f ir e p ro t e c t io n re p la c e o n ly w it h t h e sp e c if ie d t y p e a n d ra t i ng o f fu s e. Ma i n ta in g ro u n d l in e to a v o id e l e c t ric a l sh o c k. Do n o t re mo v e c o v e rs. Re f e r s e r v ic i n g t o q u a l if ie d p e rs o n e l. Ma i n s 1 1 5 V.. 2 3 0 V 5 0. 6 0 Hz F u s e : LPT 1 (Pri nter) Po wer 1 0 A s l o w Ke yb oa rd SCOPE OF SUPPLY E.g. HIAS 743-4; HS RIC (4 channel system, mounted in a minirack with desk and built-in RIC422-4 calibrator) Qty. 1 Desk with mini-rack, main switch, grounding connections, cables Qty. 1 HiAS 743 mainframe unit with system CPU, supplies, CD RW, Floppy, HDD, channel slots, Interfaces. Qty. 4 Measuring channel insert (Digitizer) including Record of performance. Qty. 4 75Ω LEMO termination resistor Qty. 1 Mouse, ASCII keyboard Qty. 1 Flatscreen, TFT monitor, 19 Qty. 1 Laserprinter, 1200dpi Qty. 1 Set of software backup disks Qty. 2 All operating manuals (English) Qty. 1 RIC 422-4 with all connection cables, built into rack. Including Manual, certificate, correction floppy. ORDERING INFORMATION System System, minirack & desk, 1 channel System, minirack & desk, 2 channels System, minirack & desk, 3 channels System, minirack & desk, 4 channels System, minirack & desk, 2 DKD certified Reference channels, Comparison Test software package (SW option COMP, MS Excel, prepared calculation sheets) HIAS 743-1 HIAS 743-2 HIAS 743-3 HIAS 743-4 HIAS 743-2 REF Options Desktop housing instead of desk and rack ( price reduction; 2 channels max.) HS 743 DT upgrade (1 additional measuring channel insert ) HS 743 CHANNEL upgrade (1 additional DKD certified Reference measuring channel insert ) HS 743 CHANNEL DKD Sequence recorder software tool HS 743 SEQ Interfacing software package to allow remote controlling the HiAS, e.g. from a host PC over RS232 HS 743 REMOTE Transfer Function software tool HS 743 TF Transfer Function & Coherence Function software tool HS 743 CTF Office Software (OS: Win98, 2000, XP) HS 743 OFFICE Software Upgrade Package ( upgrade older HIAS mainframes (Pentium III required) to the newest software package) HS 743 SW UP Accessories Reference Impulse Calibrator, 4 channels, IEEE488 & RS232 interface HS RIC European Contact Haefely Test AG Lehenmattstrasse 353 4052 Basel Switzerland + 41 61 373 4111 + 41 61 373 4912 sales@haefely.com Locate your local sales representative at www.haefely.com USA Contact Hipotronics Inc. 1650 Route 22 PO Box 414 Brewster, NY 10509 USA + 1 845 279 8091 + 1 845 279 2467 sales@hipotronics.com Haefely has a policy of continuous product improvement. Therefore we reserve the right to change design and specification without notice. LL_HIAS743_0804_LWA.doc 7/7