v CT Analyzer Brochure ()
Contents
1. Technical data CT Analyzer Current ratio accuracy Ratio 1 2000 Ratio 2000 5000 Ratio 5000 10000 Phase displacement Resolution Accuracy Winding resistance Resolution Accuracy Power supply Input voltage Permissible input voltage Frequency Permissible frequency Input power Connection Output Output voltage Output current Output power 0 02 typical 0 05 guaranteed 0 03 typical 0 1 guaranteed 0 05 typical 0 2 guaranteed 0 1 min 1 min typical 3 min guaranteed 1mQ 0 05 typical 0 1 1 mQ guaranteed 100 V 240 V 85 V c 264 V 50 60 Hz 45 Hz 65 Hz 500 VA Standard AC Socket IEC 60320 O 20V 0 5 A 15A 0 400 VA y 1500 VA m aa Ordering information Description Standard Package Advanced Package Upgrade Standard Advanced Order No VE000656 VE000654 VESM0653 OMICRON Physical dimensions Size W x H x D 360 x 285 x 145 mm 9 2 x 7 2 x 3 7 in Weight 8 kg 17 4 Ibs without accessories Environment conditions Operating temperature 10 C 4 50 C 14 F 122 F Storage temperature 25 C 4 70 C 13 F 158 F Humidity Relative humidity 5 95 not condensing CE conformity EMC Directive 2004 108 EC and low voltage Directive 2006 95 EC EMC EN 61326 1 Class A IEC 61326 1 Class A FCC Subpart B of Part 15 Class A Safety EN 61010 1 IEC 61010 1 UL 610102. like excitation curve eddy current ratio etc E V 100 000 10 000 1 000 Yt vs U t R I Definition of CT model elements and calculation of CT parameters through embedded mathematical functions Automated comparison of test results with the defined values according to the selected IEEE or IEC standard POWER Current ratio error in at of rated current cos Data type 1 5 10 20 50 00 ty 120 gt 2 008 ing a U U 7 0 0 0 009 0 008 2 o val je 023 0 23 f 021 U tri X 0 009 0 008 cr orlt dt L 9 og rare 0 008 0 010 0010 3 a t crlt Float value 0 008 0 010 inia iiaa 0 004 0 003 0 002 x H0 0 010 0 008 0 00 U t Stri OCG 0 004 0 003 0 002 clt U O Ro 1 t L g 0 1 ning value 0 005 0 901 0 000 0 001 0 000 0 000 CT t C Float value 0 005 0 001 0 000 0 001 0 00 0 001 0 0 9 0 000 0 00 0 001 EE The CT Analyzer is designed to accurately measure all relevant CT parameters and compare them to the requirements of the defined IEEE or IEC standard Due to this automated assessment testing engineers receive the pass or fail decision within seconds OMICRON CT Analyzer a new way of testing CTs The CT Analyzer is the most complete testing system for protection and metering CTs according to IEEE and IEC standards It allows all types of single and multi ratio current transformers to be tested on site in power system grids Ma
3. on a PC via the Excel file loader program Customizable report templates are available for example gt Different standards classes and applications gt Single multi core and multi tap CTs gt Three phase testing gt Core testing Verification for different burdens and currents gt Existing measurement data can be loaded to the CT Analyzer at any time Recalculation of the CT parameters for different burdens and primary currents No further on site measurements are necessary to verify whether a change in the burden will influence the accuracy of a CT Manual testing QuickTest gt Use of the CT Analyzer as a multimeter with an integrated current and voltage source Perform manual tests L Z R ratio polarity burden etc for trouble shooting and quick verification on site VT ratio check CT SB2 switch box gt Automated testing of multi tap CTs without the need for rewiring Includes terminals for burden and primary resistance tests CTs with up to six taps can be tested Automatic wiring check before measuring Use attached to the CT Analyzer or as a standalone unit Guessing nameplates gt gt Determination of unknown CT data Older CTs can be classified and put into service without contacting the manufacturer Determinable parameters include gt CT type gt Class gt Ratio gt Knee point gt Power Factor gt Nominal and operating burden gt Winding resist
4. winding Pluggable 23 turns winding CT SB2 upgrade kit CT SB2 accessories included Primary resistance Kit 4 pole cable 15 m 49 2 ft CT SB2 to CTprim 2 x Kelvin clamps RemAlyzer Software License for the CT Analyzer to determine the residual magnetism in current transformers Order No VEHZ0649 Order No VEHK0658 Order No VEHZ0696 Order No VEHZ0684 Order No VESM0657 11 ee OMICRON Coax cables Order No 3m 9 8ft VEHK0654 6m 19 7 ft VEHK0652 10 m 32 8 ft VEHK0653 15 m 49 2 ft VEHK0655 100 m 328 1 ft VEHKO0656 with banana plugs Transport case Order No Transport case with wheels VEHPO068 USB RS232 converter cable Order No with Nullmodem cable VEHZ0014 Set of two Kelvin clamp Order No adapters VEHZ0628 Kelvin clamp adapter can be used together with the standard measurement cable OMICRON is an international company serving the electrical power industry with innovative testing and diagnostic solutions The application of OMICRON products allows users to assess the condition of the primary and secondary equipment on their systems with complete confidence Services offered in the area of consulting commissioning testing diagnosis and training make the product range complete Customers in more than 140 countries rely on the company s ability to supply leading edge technology of excellent quality Service centers on all continents provide a broad base of know
5. 1 CSA C22 2 No 1010 1 92 Certificates from independent test institutes KEMA Test Report PTB Test Report Wuhan HV Research Test Report Accessories Accessories and software part of Standard and Advanced Package Coax cables with banana plugs 2x3m 2x9 8ft 1x10m 1x 32 8 ft Crocodile clamps with 4mm 0 2 in banana sockets secondary side connection 20 mm 0 8 in opening width 2x red 2 x black Compact Flash Card 128 MB Memory space for at least 416 test reports User manual User manual Grounding PE cable 1x6m 1x 19 7 ft 6 mm 0 01 sq in protective earth connection CT Analyzer PC software toolset remote control software QuickTest Excel File Loader etc Order No VEHKO651 Order No VEHZ0656 Order No VEHZ0654 Order No VESDO605 Order No VEHKO615 Order No VESMO0800 10 Battery clamps with 4 mm 0 2 in banana sockets primary side connection Flexible terminal adapters 1 with 12x 4mm 0 2 in banana socket Compact Flash card reader USB 2 0 Compact Flash card reader Carry bag CT Analyzer carry bag Training CT 300 5 class 0 5 F55 Power cord depends country specific Order No VEHZ0652 Order No VEHS0009 Order No VEHZ0655 Order No VEHP0018 Order No VEHZ0643 Additional accessories and software w pyyn ea Calibration CT 2000 1 2000 5 class 0 02 Pluggable
6. A OMICRON CT Analyzer Revolution in current transformer testing and calibration OMICRON Revolutionary way of CT testing Current transformers are used for relaying and metering purposes in electrical power systems They connect the high power primary side to the protection and metering equipment on the secondary side Depending on the application they are used for current transformers are designed differently Protection current transformers As it is used to feed protective relays the CT must be accu rate during normal and fault conditions Failures in transfor mation could lead to misoperation of the relay along with unwanted and costly outages To test CTs according to the requirements of modern protection systems it is compul sory to consider transient components and auto reclosure systems Automated testing procedure 1 Measurement of parameters Modeling Metering current transformers CTs for metering purposes must provide high accuracy up to class 0 1 to guarantee correct billing It is therefore essential to test and calibrate the metering current trans former as the entire metering chain is only as accurate as the instrument transformers feeding the meter In contrast to protection CTs metering CTs must go into saturation directly above the nominal primary current level to protect the connected metering equipment 3 Assessment according to IEEE or IEC standard Measurement of CT parameters
7. acturer Type Optional 1 Fon eco A isn 5 sla Std ANSI 45 bd pim M Classi 0 3 X pe 15 ef 60 he Rated burden va cose Op burden z va Op cose X mA fA 40 0 4 4 4 jf 34 5 i Ea H ro o METTETE iiiiiiii ii Mit tidanee RemAlyzer gt Software based tool to determine the residual magnetism in current transformers Analysis of the remanence condition before putting into operation the CT to assure proper function Simplifies power grid failure analysis after unwanted operation of protective relays Demagnetizes the CT core after measurement Remote control gt Full access to all functions of the CT Analyzer via a PC using the remote interface Optimizes the integration into automated testing procedures in production lines Data export into Excel and Word Customizable testing and reports Network simulation NetSim is a software tool for network simulation part of the Test Universe software suite for relay testing Easy transfer of CT Analyzer measurement data to NetSim Accurate modeling of power systems for network studies and fault simulation testing of protection relays Behavior analysis of protective relays in case of CT saturation Data handling and reporting gt Test reports can be saved on the Compact Flash Card and transferred to a PC Data and protocols can be shown
8. ance primary and secondary OMICRON POWER Current ratio error in at of rated current cos Phi Data type 1 5 10 20 50 100 120 200 String value 0 023 0 023 0 021 0 018 0 013 0 010 0 009 0 008 oe Float value 0 023 0 023 0 021 0 018 0 013 0 010 0 009 0 008 String value 0 008 0 010 0 010 0 008 0 006 0 004 0 003 0 002 oe Float value 0 008 0 010 0 010 0 008 0 006 0 004 0 003 0 002 String value 0 005 0 001 0 000 0 001 0 000 0 000 0 001 0 001 3 Float value 0 005 0 001 0 000 0 001 0 000 0 000 0 001 0 001 String value 0 007 0 005 0 004 0 003 0 003 0 003 0 004 0 004 1 Float value 0 007 0 005 0 004 0 003 0 003 0 003 0 004 0 004 CT uick Ee Advanced RHS 3 67 Srna 1 002 15 44 CTA QuickTest Sai Fesistan Excitati Ratio ALLN Smegaae resistan Excitati Ratio Vy ANSI 45 Pr H 0 3 RF S uaia Cosy Technical data Technical features Standard Package Excellent noise immunity to disturbances from energized power lines close to the measurement Automatic assessment according to IEC 60044 1 IEC 61869 2 or IEEE C57 13 up to accuracy class 0 3 Determination of ALF ALFi and FS FSi Ts and composite error for nominal and connected burden CT ratio and phase m
9. dards and regulations However the ideal test device avoids the use of high test currents and voltages and conducts tests with as low test voltages as possible to reduce the operator s health and safety risks Secondary voltage injection gt gt 30 kg 66 1 Ibs Not including additional equipment e g external burden box gt Not sufficient for high accuracy metering CTs Sensitive to transient distortion from life signals due to the use of 50 Hz test signals gt Voltages for saturation tests can be 2 000 V or more Re wiring is required for each type of test e g ratio polarity saturation winding resistance Test results must be assessed manually OMICRON Handling Short measurement times and an automated assessment to the respective IEC and IEEE standards characterize modern test equipment All relevant parameters should be measured in one test cycle without the need for rewiring Printable test reports including all measured data and the assessment to the standard are ideally created automatically by the test device Extraordinary features P e i a y j max ia p ip f P i Field strength H E FT ssi Test Settings things X1 XS Muti Ratio Cr Location Station Feeder company t tS contry t S cof 8 t Object Serial No Cove tap Manuf
10. easurement with consideration of nominal and connected secondary burden gt Currents from 1 up to 400 of the rated value gt Different burdens full 2 14 Ys burden CT winding resistance measurement primary and secondary CT excitation curve unsaturated and saturated gt Saturation characteristic recording gt Direct comparison of excitation curve to a reference curve CT phase and polarity check Secondary burden measurement Automatic demagnetization of the CT after the test Small and lightweight lt 8 kg 17 4 Ibs Short testing time due to fully automatic testing High level of safety using patented variable frequency method max 120 V Nameplate guesser function for CTs with unknown data Remote control interface QuickTest Manual testing interface Display readable in bright sunlight Simulation of measured data with different burdens and currents Easily adaptable reports customizable Knee point voltage from 1 V up to 4 kV can be measured Additional features Advanced Package gt gt gt Automatic assessment for accuracy class gt 0 1 inclusive classes defined in the IEEE C57 13 6 standard Measurement of transient behavior of TPS TPX TPY and TPZ type CTs Automatic assessment according to IEC 60044 6 and IEC 61869 2 Determination of the transient dimensioning factor Ktd Knee point voltage from 1 V up to 30 kV can be measured Considering Duty CO CO CO e g auto reclosure system
11. ledge and extraordinary customer support All of this together with our strong network of sales partners is what has made our company a market leader in the electrical power industry The following publications provide further information on the solutions described in this brochure Datasheet CT SB2 Switch Box For more information additional literature and detailed contact information of our worldwide offices please visit our website OMICRON L2065 August 2013 www omicron at www omicronusa com Subject to change without notice
12. ling is only possible if metering CTs work within one utility The ideal CT test device would therefore be their specifications for all secondary burdens and levels of an all in one solution light enough to be carried by primary current that are defined in the standards To test one person It should be able to measure all parameters and calibrate these metering CTs measurement equipment without the need for any further equipment such as a delivering reliable results up to class 0 1 CTs is needed burden box Primary nominal current injection Primary current injection Mobilit gt Approx 2 tons of equipment high current source gt gt 30kg 66 1 lbs Not including additional y huge cables current booster burden box etc equipment e g external burden box 7 gt Not sufficient for high accuracy metering CTs gt High accuracy but complicated wiring makes a Accuracy gt Sensitive to transient distortion from life signals testing error prone due to the use of 50 Hz test signals Safety 7 ie ey high eee ann gt Typical current levels of 500 A to 800 A are used primary nominal current injection gt Re wiring is required for each type of test gt Requires several people to set up and Handling e g ratio polarity saturation winding resistance conduct the test gt Test results must be assessed manually Electrical model Safety Equipment for testing CTs on site must comply to applicable satety stan
13. nufacturers of CTs transformers or GIS use the CT Analyzer in their production facilities and test development labs The CT Analyzer offers a wide range of measurements such as gt CT ratio and phase angle accuracy with consideration of nominal and operational burden for various currents gt CT winding resistance gt CT excitation saturation unsaturated and saturated gt ALF and FS direct and indirect gt Burden impedance gt CT residual magnetism 4 Reporting All data is delivered in an XML file and can be displayed via the reporting tool Your benefits gt Field verification of CTs up to the 0 1 accuracy class due to extremely high accuracy 0 02 typical gt Compact and lightweight lt 8 kg 17 4 lbs gt Automatic assessment in accordance with IEEE and IEC standards gt Reduced testing time typically lt 1 min gt High noise immunity for on site testing Highly accurate CT verification made mobile The ideal way of testing a current transformer As energy is supplied by many different sources power system grids for generation transmission and distribution are expanded continuously This makes the use of additional metering and protection CTs necessary To test all of these CTs in a cost effective and reliable way the ideal CT test device fulfills the following requirements Mobility Accuracy Test engineers often have to maintain several CTs within Correct bil
Download Pdf Manuals
Related Search