Single-Phase Transformer Winding Resistance Meters

RMO-TW Series - IBEKO Power AB

RMO-TW series is perfect for winding resistance measurements of inductive objects. It is ideal for testing transformer windings (power transformers, distribution, autotransformers) and for on-load tap changer verification. In addition, any RMO-TW transformer ohmmeter & tap changer analyzer can also perform transformer demagnetization.The series contains 4 models, with maximal test currents from 10 A (RMO10TW) to 50 A (RMO50TW). They are fitted in a portable and lightweight metal housing.All transformer ohmmeters from RMO-TW series generate a true DC ripple-free current with automatically regulated measurement and discharging circuit. The injection of current and discharge of energy from the test object are automatically regulated.Three independent channels enable testing of three windings in series. Consequently, this enables measurements of winding resistance in every tap position of an on-load tap changer without discharging between the tests.DV-Win software enables control and observation of the test process, as well as saving and analyzing the results on a PC. It provides a test report, arranged in a selectable form as an Excel spreadsheet, PDF, Word, or ASCII format. Additionally, DV-Win measures and calculates the OLTC transition time, the ripple and the winding resistance for each tap changing operation. The software can also perform the calculations necessary for the “Heat Run” test. Finally, a user can export all results in the form of a report.

VisualIMPACT Software

Instron

CEAST VisualIMPACT software is designed to control CEAST Pendulums and Drop Tower Series, manage tests and offer a user-friendly interface when using the Data Acquisition System. It records force and absorbed energy data related to impacts, visualizes and helps analyze the results and calculates resilience. The operator is guided through parameters setup by means of tables describing strikers and specimens that are filtered according to the test type and international standard selected. In the case of instrumented tests, many possibilities for data analysis and visualization are made available. The results are shown through comprehensive and customizable graphs and can be filtered by break type (only specimens with a selected break type are shown). Working with groups of test, the software performs a statistical analysis, and the operator can pick and discard single test results. Different measurement units can be selected. It is possible to print reports and to export data totally or partially. Recent improvements include the possibility to set a number of user profiles, including graphic settings, default printing options, advanced parameters for data analysis and so on, switching quickly from one another when looking at results. The introduction of a new Data Acquisition System (CEAST DAS 64K) in the Impact product line has also triggered a number of new capabilities for the SW, which is now able to process a more comprehensive calibration file for instrumented tups and hammers and manage DAS configurations with a wider range of data acquisition channels.

Three-Phase Transformer Demagnetizer

DEM60C - IBEKO Power AB

After a DC current test, such as winding resistance measurement, the magnetic core of a power or instrument transformer may be magnetized (remnant magnetism). It can cause various problems such as wrong diagnostics, inaccurate measurements on a transformer, inrush current at the start-up of a power transformer, or incorrect operation of protective relays due to magnetized CT cores. The best way to eliminate this source of potential problems is to use demagnetizer on the power or instrument transformer.The DEM60C is a fully automatic test instrument which performs three-phase transformer demagnetization. Transformer magnetic core demagnetization requires the application of AC current with magnitude decreasing to zero. DEM60C provides this AC current by internally changing the polarity of a controlled DC current. During the demagnetization process, the instrument supplies the current at decreasing magnitude for each step, following a proprietary algorithm. It can demagnetize single-phase and three-phase power transformers.The instrument can be connected to all three phases of a power transformer to be demagnetized, on either the primary or the secondary side. If a user selects specific vector diagrams for different types of transformers, DEM60C will run a specific demagnetization procedure for each transformer type (i.e., single phase, delta, wye/star, zig-zag.) without switching the test leads.DEM60C enables safe and efficient power transformer demagnetization. The instrument automatically regulates the injection of current and discharging energy from the inductance. During and after the operation, an intrinsically safe discharge circuit with an indicator rapidly dissipates the stored magnetic energy. The discharging circuit is independent of the power supply, which improves its reliability in case of loss of power.Test currents of up to 60 A DC enable efficient demagnetization of even the largest power transformers. Using a DV Win software, it is possible to control DEM60C externally.

High Voltage, Continuity & Hipot, Cable & Wire Harness Test Systems

CableEye HVX, HVX-21 - CAMI Research Inc. (CableEye®)

Fast ● Simple ● Precise Advanced wiring analyzer scans for continuity (opens, shorts), miswires, resistance, capacitance, components (resistors, diodes, LEDs, capacitors) dielectric breakdown, insulation resistance, intermittent connections HVX (Item 829) 1500 Vdc, 1000 Vac HVX-21 (Item 829A) 2100 Vdc, 1200 Vac For diagnostic and Pass/Fail Testing — Permits expanded testing (compared to models in our low voltage product line) for insulation resistance (IRI) and dielectric breakdown (DWV). All CableEye testers are suitable for production, fault diagnosis, QC (Quality Control), assembly, and prototyping of standard or custom cables. Each combines test, fault location, design, documentation, labeling, and database storage in one instrument. Tests can be performed on long cables (with or without connectors) or no cables (e.g. connectors, backplanes, PCBs, components). Standard Features & Benefits:

• USB certified, PC-based tester for a versatile, fast, robust system with long life-cycle.
• Multilingual, dynamic, graphic-rich display (netlist & wiring schematic) provides clarity and speeds diagnostics.
• 128 Test Points, expandable to 1024 providing flexibility as your product line changes.
• User-selectable voltage to each connection group in the cable simplifies an otherwise complex process, accelerating testing.
• Programmable Ramp Up, Ramp Down, Dwell Time (same as Test Time), Trip Current, and Trip Delay (same as Soak Time) adds versatility.
• Current leakage detected during HV test phase provides a measure of insulation resistance up to 1 GΩ (HVX) and 5 GΩ (HVX-21) - any leakage current exceeding a preset limit reveals the presence of moisture, flux, or other contamination on exposed contacts.
• Real-time screening for intermittent connections for pinpointing elusive faults and improving quality.
• Automation scripting in a simple, intuitive language allowing non-programmers to reduce operator error by automating repetitive steps.
• Pop-Up Work Instructions. choose the exact amount of detail, imagery, language and automation you need to ensure your work instructions and tests are carried out flawlessly.
• Flexible tolerancing: optionally define as percentages or absolute terms, as well as asymmetrically (e.g. +0%/-10%) for improved yields.
• Barcode-tracking & archival data-logging to achieve error-proof test process and improved traceability & productivity.
• Print PASS/FAIL labels, test reports (with or without color wiring schematics/netlists) and log reports to satisfy ISO9000 reporting requirements.
• Compatible with laptop and touchscreen PCs for fieldwork and rack/off-bench mounting.

Includes: CB29 board set (Item 759) for bare wire connections; comprehensive PC software with Database of >200 standard cables; 2 yr Product Support Subscription comprising Warranty, free tech support, and free software upgrades. Select Add-On Options: Hardware: 128-point Expansion Modules (attach to base); 4-Wire Kelvin Resistance Measurement, 1 mΩ at 1 A; Advanced Measurements; External Measurement Instrument Port (e.g. 10 GΩ Isolation at 100 V); Remote Control Connector for Deadman Switch; Environmental Sensor Software: PinMap™ fixture editor, Connector Designer™ connector editor, or Autobuild™ guided assembly modules camiresearch.com |@CAMI_CableEye |+1.978.266.2655

Wiring Analyzers for Cables, Wire Harnesses, Backplanes

CableEye M2Z, M3Z, M4 - CAMI Research Inc. (CableEye®)

Fast ● Simple ● Precise Advanced wiring analyzer scans for continuity (opens, shorts), miswires, resistance, capacitance, components (resistors, diodes, LEDs, capacitors), insulation resistance, intermittent connections. For diagnostic and Pass/Fail Testing All CableEye^® testers are suitable for production, fault diagnosis, QC (Quality Control), assembly, and prototyping of standard or custom cables. Each combines test, fault location, design, documentation, labeling, and database storage in one instrument. Tests can be performed on long cables (with or without connectors) or no cables (e.g. connectors, backplanes, PCBs, components). Standard Features & Benefits:

• USB certified, PC-based tester for a versatile, fast, robust system with long life-cycle.
• Multilingual, dynamic, graphic-rich display (netlist & wiring schematic) provides clarity and speeds diagnostics.
• 128 Test Points, expandable to 1024 providing flexibility as your product line changes.
• Real-time screening for intermittent connections for pinpointing elusive faults and improving quality.
• Automation scripting in a simple, intuitive language allowing non-programmers to reduce operator error by automating repetitive steps.
• Pop-Up Work Instructions. choose the exact amount of detail, imagery, language and automation you need to ensure your work instructions and tests are carried out flawlessly.
• Flexible tolerancing: optionally define as percentages or absolute terms, as well as asymmetrically (e.g. +0%/-10%) for improved yields.
• Barcode-tracking & archival data-logging to achieve error-proof test process and improved traceability & productivity.
• Print PASS/FAIL labels, test reports (with or without color wiring schematics/netlists) and log reports to satisfy ISO9000 reporting requirements.
• Compatible with laptop and touchscreen PCs for fieldwork and rack/off-bench mounting.

Includes: CB15C board set (Item 745C) for common computer and peripheral device cables; comprehensive PC software with Database of >200 standard cables; 2 yr Product Support Subscription comprising Warranty, free tech support, and free software upgrades. Select Add-On Options: Hardware: 128-point Expansion Modules (attach to base); Environmental Sensor Software: PinMap™ fixture editor, Connector Designer™ connector editor, or Autobuild™ guided assembly modules camiresearch.com |@CAMI_CableEye |+1.978.266.2655