Sophisticated voltage transformer testingMobile and accurate voltage transformer testingInductive and capacitive coupled voltage transformers (VTs)Testing in power system grids, production facilities, and test/development labsProtection and metering applicationsDetermination of all important transformer parameters:VT ratio accuracyVT phase angle accuracyVT winding resistance of secondary windingsClass verification of VTs with up to 5 secondary windings

Page * OMICRON

Your benefitsMobile: compact size and low weight (< 15 kg / 33 lbs)Accurate: field calibration of VTs up to the 0.1 accuracy classFast: software-guided test procedure ensures short testing time (< 20 min)Convenient: automatic result assessment as per IEEE and IEC standards directly after the testEfficient: simulation and re-assessment with changed VT parametersSafe: 4 kV maximum test voltage and local isolation between high voltage and measuring equipment

Page * OMICRON

VOTANO 100Page * OMICRONGenerator outputMeasurement input 1Measurement input 2Grounding terminalCommunication interface to VBO1PC connectionCompact Flash card slot

Voltage booster VBO1Page * OMICRONRatio testsWinding resistance, short-circuit impedance, and excitation testsGrounding terminalVOTANO 100 interface for ratio testVOTANO 100 interface for all other tests Communication interface to VOTANO 100Emergency stop button

Test procedureVoltage transformer testing with VOTANO 100Page * OMICRONStep 1: measurement of parametersStep 2: modelingSoftware-guided measurement of different VT parameters such as winding resistance, magnetization characteristics, etc.Determination of VT model elements and calculation of VT accuracy through embedded mathematical functions

Test procedureVoltage transformer testing with VOTANO 100Page * OMICRONStep 3: IEEE/IEC assessmentStep 4: reportingAutomated comparison of test results with the defined values in accordance with the selected IEEE or IEC standardAll data can be saved in Excel and XML format or can be printed as a test report.

Test procedureMaximum safety during testingSupplied voltage booster VBO1: located in high-voltage environmentUser and VOTANO 100: located in safe area outside the high-voltage environmentVBO1 provides 4 kV maximum test voltage for ratio measurementGrounding and plausibility checkAcoustic warningsEmergency stop button or optional dead man switchPage * OMICRONSafe areaHigh-voltage environmentVOTANO 100VBO1

Test procedureTest sequencePage * OMICRONVT or CVT?Specification of voltage transformer data3. Secondary short-circuit impedancemeasurement2. Winding resistance measurement1. Short-circuit impedancemeasurement4. Excitation measurement5. VT ratio measurement4b. CVT inductive ratio measurement4a. CVT ratio measurement* if more than two secondary windings are available......*VTCVT

Test procedure1. Short-circuit impedance measurementPage * OMICRONVTCVT

VOTANO 100Test procedure2. Winding resistance measurementPage * OMICRONCVT / VTEmergency switch

Test procedure3. Secondary short-circuit impedance measurement Page * OMICRONVOTANO 100CVT / VTEmergency switch

Test procedure4. Excitation measurementPage * OMICRONVOTANO 100CVT / VTEmergency switch

VOTANO 100CVTEmergency switchTest procedure4a. CVT ratio measurementPage * OMICRON

VOTANO 100CVTEmergency switchTest procedure4b. CVT inductive ratio measurementPage * OMICRON

VTCVTTest procedure5. VT ratio measurementPage * OMICRON

Device operationOperation via VOTANO 100 displayGuided workflow with connection diagramsIdeal for use with intense solar irradiation

Operation via PC softwareControl whole measuring procedure with your PCGuided software workflowRemote control allows integration into automated procedures of production lineAutomated pass/fail assessment of resultsExport reports in Excel and XML formatFirmware upgradePage * OMICRON1221

Result assessmentAutomated assessment as per IEEE and IEC standards Assessment is completed within seconds after measurementComplete class assessment considering;different burden valuesdifferent primary voltage valuesother secondary windings under load and no-load conditionsprotection and metering class, simultaniously assessed per winding up to five windings in assessment matrixopen delta winding

Page * OMICRON

UnloadedBurden in %cos PhiVA2%5%80%100%120%RatioVoltage ratio error in % at % of rated voltage, other winding unloaded1000.8150.088%0.123%0.177%0.177%0.176%250.83.750.033%0.362%0.415%0.417%0.415%Phase anglePhase angle error in min. at % of rated voltage, other winding unloaded1000.8154.825 min.4.287 min.3.180 min.3.186 min.3.245 min.250.83.752.802 min.2.263 min.1.155 min.1.161 min.1.220 min.LoadedBurden in %cos PhiVA2%5%80%100%120%RatioVoltage ratio error in % at % of rated voltage, other winding loaded1000.815-0.57%-0.54%-0.482%-0.481%-0.483%250.83.75-0.33%-0.30%-0.246%-0.245%-0.246%Phase anglePhase angle error in min. at % of rated voltage, other winding loaded1000.8152.320 min.1.783 min.0.678 min.0.683 min.0.737 min.250.83.750.302 min.-0.235 min.-1.340 min.-1.335 min.-1.300 min.

Result assessmentError parallelogram as per IEEE standardPage * OMICRON-20-15-10-505101520Phase angle in min.RCF1.0041.0031.0021.0011.0000.9990.9980.9970.9965 % UPR25 % UPR90 % UPR100 % UPR110 % UPRZZZYMXWO

Supported standardsIEC 60044-2 (inductive VTs)IEC 60044-5 (capacitive VTs)IEC 61869-3 (additional requirements for inductive VTs)IEC 61869-5 (additional requirements for capacitive VTs)IEEE C57.13 (standard requirements for conventional transformers)ANSI C93.1 (requirements for capacitive VTs)

Simulation and re-assessment of resultsSimulation and re-assessment of existing measurement data at any timeNo further on-site measurement necessary when the following transformer parameters have changed:BurdensNominal voltage factorAccuracy classPage * OMICRON

ReportingGenerate customizable reportsData can be exported in Excel and XML format

Page * OMICRON

Technical specificationsPage * OMICRONTest restrictions for inductive voltage transformersCombined instrument transformers cannot be tested with the mentioned accuracyInductive voltage transformers

Ratio measurementVoltage ratioVoltage levelTypical accuracy1 ... 3500.6kV ... 35kV0.05%> 350 ... 1100> 35kV ... 110kV0.07%> 1100 ... 2450> 110kV ... 245kV0.07%

Phase displacement measurementVoltage ratioVoltage levelTypical accuracy1 ... 3500.6kV ... 35kV1 min> 350 ... 1100> 35kV ... 110kV2 min> 1100 ... 2450> 110kV ... 245kV2 min

Winding resistance measurementResolutionGuaranteed accuracyTypical accuracy1m 0.1%+1m0.05%

Technical specificationsPage * OMICRONCapacitive coupled voltage transformersTest restrictions for capacitive coupled voltage transformersCVTs with integrated damping unit which cannot be accessed from outside cannot be tested with the mentioned accuracy.CVTs where the connection of the NHF terminal to ground cannot be opened cannot be tested.

Ratio measurementVoltage ratioVoltage levelTypical accuracy300 ... 8000> 30kV ... 800kV0.07%

Phase displacement measurementVoltage ratioVoltage levelTypical accuracy300 ... 8000> 30kV ... 800kV2 min

Winding resistance measurementResolutionGuaranteed accuracyTypical accuracy1m 0.1%+1m0.05%

Ordering information and accessoriesOrdering informationVOTANO 100 Standard Package (VE000800)VOTANO 100, VBO1, accessoriesTesting up to class 0.3VOTANO 100 Advanced Package (VE000801)Content of Standard PackageIncreased accuracy: testing up to class 0.1Simulation toolVOTANO 100 Capacitive VT Upgrade Option (VESM0801)Standard to Advanced Upgrade Option (VESM0802)

Page * OMICRONAccessories

Dead man switch

Thanks for your attention.Please visit our website www.omicron.atPage * OMICRON

Page *Page *Page *Page *Page *Page *