Showing results: 3646 - 3660 of 3668 items found.
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GGT Series -
IBEKO Power AB
The GGT500 ground grid integrity tester is designed for inspection of the substation ground grid. It can also be used as a portable micro-ohmmeter with Both Sides Grounded and Remote Control functionalities. It is intended to inspection the conditions of a grounding system beneath substations, testing of medium- and high-voltage circuit breakers, disconnecting switches, high-current bus bar joints, cable splices, and different high-current links.In the United States when inspecting the quality of the grounding systems beneath a substation, the proper procedure is to inject 300 A DC during a time period of 60 s. This is what the GGT500 will do, and in that time period, the current path and voltage drop are checked. Also acting as a micro-ohmmeter, the GGT500 can test low resistance values by producing high test currents of up to 500 A.The instrument is placed in an unbreakable, plastic case with IP67 protective rating (with closed lid). Although very portable and lightweight, micro-ohmmeters have very high output power capabilities. High output voltage enables a wider measurement range at higher test currents, as well as the use of thinner/longer test cables. GGT500 ground grid integrity tester generates a true DC ripple-free (less than 1 % ripple) current with automatically regulated test ramps. This significantly decreases magnetic transients and ensures great accuracy.When used for testing in Both Sides Grounded conditions, a special current clamp powered from the ground grid integrity tester is used for measuring a current through groundings. If even a higher safety level is required, the remote control feature enables the operator to perform measurements from a distant location, away from the instrument and test object.
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RMO-TT Series -
IBEKO Power AB
RMO-TT series is perfect for measuring winding resistance of inductive objects such as power and distribution transformers or autotransformers. Additionally, every transformer resistance meter from RMO-TT series can analyze:tap changers,generators,electrical motors,high-current busbar joints,cable splices,and welding joints.Transformer demagnetization can also be performed with all RMO-TT instruments.The series is consisted of 3 models, with maximal test current from 40 A (RMO40TT) to 100 A (RMO100TT). RMO100TT is the only portable transformer resistance meter in the market with 100 A DC output current.The three independent channels enable testing of three windings in series. Consequently, a user can measure winding resistance in every tap position of an on-load tap changer without discharging between the tests.In addition to winding resistance measurement, a user can perform a detailed on-load tap changer analysis by analyzing recorded graphs (10 kHz sampling rate) and by measuring vibrations on an external tap changer tank.All RMO-TT instruments have a built-in tap changer control unit. Because of this, it is possible to remotely control on-load tap changer (OLTC) directly from the device. Also, a user can program DV-Win software to do everything automatically – running winding resistance tests and changing OLTC tap positions.The DV-Win software also 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.All results can be exported in the report format.
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P200L or P300L -
The Micromanipulator Company
The Micromanipulator P300L 300mm semiautomatic probe station comes standard with features such as single-point ground and integrated thermal chuck plumbing. Built for reliability as well as precision, the P300L features leadscrew – leadnut stage and platen drives, a stainless steel platen with removable front wedge and high stability microscope bridge that supports all high resolution long-working distance microscopes.The P300L ‘s versatile controller supports USB and GPIB communications (configured with proper options). The stage X-Y and platen (Z) are motorized / programmable. Microscope motorized / programmable control is also an option. The system may be controlled via scripts and all popular parametric test analytical prober drivers. An indexing script with user GUI and a Labview VI is provided allowing use of the system right out of the box.Micromanipulator strives to ensure our semiautomatic systems are flexible so that applications like Magnetic sensitivity testing, Probe cards, mmW, Wafer & Board level testing. Once you have developed your testing plan we also have great relationships so we can move you into a fully automatic probe station if needed.Joystick control allows for easy and quick operation when programmability is not required. The joystick intuitively operates the station stage, platen, and microscope for systems so configured.The P300L may be configured with a local dry / shielded / dark environment “Top Hat” for low level or low temperature, frost free probing. Three temperature ranges are supported:Ambient (room temperature) to 300C0C to 300C-55C to 300CThe P300L is the station of choice for a high performance, full capability and cost-effective 300 mm semi-automatic probe station.
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MIC-3398 -
Advantech Co. Ltd.
The MIC-3398 is a Low-Power 6U CompactPCI® CPU blade with best in class price/performance ratio tailored for applications that require a state of the art processor platform based on Intel® Architecture with full IO capability at an attractive cost point. The MIC-3398 supports Intel® Atom™ E3845 and Celeron N2930, J1900 SoC (system on a chip) family previously codenamed Bay trail with a maximum of quad-core 2.00 GHz processing performance. Intel® Atom™ technology provides significant increases in performance and energy efficiency by using the 22nm Intel® manufacturing process making it an ideal choice for control and workstation applications that require passive cooling with a power dissipation as low as 10W. Up to 8GB, dual channel 1333 MHz DDR3L memory with ECC support provide a high performance and robust memory interface for demanding applications. With built-in graphics based on Intel® HD Graphics Technology this blade offers a significant improvement in graphics performance compared to previous generation platforms. Support for an onboard 2.5” SATA-II drive as well as CFast SSDs adds comprehensive mass storage support. On the system side, the MIC-3398 supports 32-bit, 33MHz and 64-bit, 66MHz PCI bus interfaces to a CompactPCI backplane. A rich set of I/O interfaces such as DVI-D, USB3.0/2.0, Gigabit Ethernet and RS-232/422/485 ports round off the feature set. In addition to the single slot wide (4HP) board offering, a dual slot wide (8HP) version of the blade offers additional network connectivity by increasing Gigabit Ethernet port count from two to four.
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AIM GmbH
AIM’s ARINC825 cards can work either with full functionality as an active CAN node for testing and simulating or in listening only mode for monitoring and recording purposes of Avionic CAN bus (ARINC825) applications on up to 4 electrically isolated CAN bus nodes concurrently. All nodes are in conformance with the ISO11898-1/-2 standard. They are accessible by software separately and can be used as 4 independent CAN bus nodes. An onboard IRIG-B time decoder allows users to accurately synchronize single or multiple modules to a common time source. All supported signals are available through front I/O and rear I/O interface. ARINC825 cards consist of FPGA based CAN interface controllers as well as a FPGA based 32-bit microcontroller core and a separate processor for IRIG-B synchronization with high resolution time stamping. All nodes are operating concurrently at CAN bus high speed bit rate of up to 1Mbit/s with the intelligence to process scheduling of CAN frames in real time onboard to significantly off-load the host processor.For embedded applications the AMC825-4 PMC module is available in a conduction cooled version. Using AIM’s family of PCI, CPCI (3U and 6U) and VMEbus carrier cards for PMC our clients have off the shelf solutions in a broad range of card formats. ARINC825 (CAN bus) modules are delivered with an Application Programming Interface (API) and Driver Software compatible with Windows, Linux and VxWorks.An ARINC825 Resource Component is available for AIM’s PBA.pro™ databus test and analysis tool including Tx and Rx simulation capabilities, a Chronological Bus Monitor and support for decoding of payload data within CAN messages. This allows to implement a powerful ARINC825 (CAN bus) analyzer or a complete test system in conjunction with other AIM avionics databus interfaces and PBA.pro™ supported 3rd party hardware.
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VDS -
Crystal instruments
The Vibration Diagnostic System (VDS) is a vibration data management system designed specifically for the machinery Predictive Maintenance (PdM) community. It harnesses the graphic display capabilities of Crystal Instruments EDM Software for the work of machinery vibration analysts. It allows the user to quickly get to the data for a machine of interest and displays that data in the familiar Tri-axial or Single Axis view. Users can quickly compare other data from the same machine, quickly navigate back into the historical data of the machine, and quickly compare the data to that of other machines in the database. The software supports the construction of Average (a.k.a. baseline) data for a class of machines and allows easy comparison to that data as well. A full suite of cursors designed specifically for PdM analysis is provided for inuitive user interaction with the data.In addition to great graphics, an extensible machine modeling system was developed specifically for vibration analysis. VDS allows users to model machines based on the elements of the machine that can contribute to the vibration energy of the whole. Model bearings, rotors such as motor bars, couplings such as flexible and fluid couplings, account for slip in fluid couplings, model gears and pulley systems, and model turbines by accounting for each stage. The system is wide open, users can create new elements to use within a system. Users that may not want to do all that are provided with a comprehensive library of machine components such as AC and Induction Motors, Couplings, Gears, Pulleys, Pumps, and other components. Single and double gear shafts allows users to model many kinds of gear boxes with an unlimited number of stages. This ability alone lets users model their machines to view and use to keep track of vibration pickup locations, record the forcing frequencies of each part of the system, and attach attributes such as manufacturer and other part information.
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Model 3448 -
Jinan Testing Equipment IE Corporation
Epsilon developed this unique high temperature extensometer for testing metals, ceramics, and composites at the high temperatures produced by furnaces and induction heating systems. A combination of features make these extensometers easier to use and better in performance than other similar high temperature extensometers.The units are held on the specimen by light, flexible ceramic fiber cords. These make the extensometer self-supporting on the specimen. No furnace mounting brackets are required. The side load on the test sample is greatly reduced because of the self-supporting design and light weight of the sensor. Most materials testing furnaces with a side cut-out for an extensometer will readily accept a Model 3448. For induction heating systems, a different ceramic cord placement allows the extensometer to easily pass between the coils.The combination of radiant heat shields and convection cooling fins allow this model to be used at specimen temperatures up to 1200℃ (2200°F) without any cooling. An optional tiny air fan does enhance stability at the highest temperatures and is recommended for the highest accuracy and for tests with small elongations. The fan comes with a magnetic base for support so it can be mounted at any convenient location near the extensometer. Fan cooling is not generally needed for induction heated systems. High purity alumina ceramic rods are used. These are available in lengths as required to fit your furnace. A spare set is included with every extensometer. Specify chisel, vee chisel or conical contact points as desired.Most units operate equally well in tension and compression. Thus tensile, compression and cyclic tests like low cycle fatigue can all be performed with a single unit.For vacuum furnaces, special models are available. Epsilon can also provide a radiant heat transfer cooled version. This requires that the extensometer module be surrounded by a water cooled enclosure with a front slot for the ceramic rods.
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TWA Advanced Series -
IBEKO Power AB
TWA Advanced series is the latest DV Power solution for three-phase transformer winding resistance measurement and tap changer analysis. They are capable of testing six transformer windings with a single cable connection, as well as three-phase automatic transformer demagnetization. It has the option of the automated test mode, where the instrument operates the tap changer without operator input (minimizing the risk of human error) and records winding resistance results based on pre-selected stabilization criteria.The unique DVtest method of tap changer analysis enables checking the moving contacts of on-load tap changers during the transition, measuring the transition time, detecting open circuits, and many other types of faults. It is performed with 0.1 ms sampling rate, together with the measurement of tap changer motor current which detects motor and mechanical issues. A special proprietary algorithm is used for testing tap changers connected through a built-in series (booster) transformer. The DVtest can be performed either on one phase or simultaneously on three phases. It can also be performed together with the winding resistance test in all tap positions.A unique advantage of TWA Advanced instruments is the capability of simultaneously testing the winding resistance of all three phases of a three-phase transformer connected in a YN configuration. This can significantly speed up the testing– for example, it enables the operator to perform 33 measurements instead of 99 on a tap changer with 33 tap positions.TWA500 is equipped with a large 10.1” graphical touch-screen display, while TWA400 has a 7” graphical touch-screen display. Besides making the interface much more user-friendly compared to older winding ohmmeters, it also enables certain test options that were previously available only with DV-Win software. The most important among them are DVtest, tap changer motor current measurement, “Heat Run” test, test templates, and automatic test mode.
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CM8856 -
Rinch Industrial Co.,Limited
* It meets the standards of both ISO2178 and ISO 2361 as well as DIN, ASTM and BS. It can be used both in the laboratory and in harsh field conditions.* The F probes measure the thickness of non-magnetic materials (e.g. paint,plastic, porcelain enamel, copper, zinc,aluminum , chrome etc.) on magnetic materials (e.g. iron, nickel etc.) . often used to measure the thickness ofgalvanizing layer, lacquer layer, porcelain enamel layer, phosphide layer, copper tile, aluminum tile, somealloy tile, paper etc.The N probes measure the thickness of non - magnetic coatings on non-magnetic metals .It is used on anodizing, varnish, paint, enamel,plastic coatings, powder, etc. appliedto aluminum, brass, non-magnetic stainless steel, etc.* Automatic substrate recognition.* Manual or automatic shut down.* Two measurement mode: Single andContinuous* Wide measuring range and highresolution.* Metric/Imperial conversion.* Digital backlit display gives exactreading with no guessing or errors.* Can communicate with PC computerfor statistics and printing by theoptional cable.* Can store 99 groups of measurements.* Statistics is available.2.SPECIFICATIONSDisplay: 4 digits LCD, backlitRange: 0~1250 μm/0~50mil(other ranges can be specified )Min.radius workpiece: F: Convex 1.5mm/Concave 25mmN: Convex 3mm/ Concave 50mmMin. measuring area: 6mmMin.Sample thickness : 0.3mmResolution: 0.1 μm (0~99.9μm);1 μm (over 100μm)Accuracy: ±1~3%n or 2.5 μm or 0.1mil(Whichever is the greater)Bttery Indicator: Low batter indicator.PC interface: with RS-232C interfacePower supply: 2x1.5 AAA(UM-4) batteryOperating condition: Temp. 0~50℃ .Humidity <95% .Size: 126x65x35 mm; 5.0x2.6x1.6 inchWeight: about 81g(not including batteries)Standard accessories:Carrying case ...................1 pc.Operation manual ............ 1 pc.F probe in built .................1 pc.NF probe in built...............1 pc.Calibration foils ..............1set.Substrate (Iron) ................1 pc.Substrate (Aluminium)......1 pc.Optional accessories: RS-232C cable & software:1.USB adaptor for RS-232C2.Bluetooth interface
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CM8855 -
Rinch Industrial Co.,Limited
It meets the standards of both ISO2178 and ISO 2361 as well as DIN, ASTMand BS. It can be used both in the laboratory and in harsh field conditions. The F probes measure the thickness of non-magnetic materials (e.g. paint,plastic, porcelain enamel, copper, zinc, aluminum , chrome etc.) on magneticmaterials (e.g. iron, nickel etc.) . often used to measure the thickness ofgalvanizing layer, lacquer layer,porcelain enamel layer, phosphidelayer, copper tile, aluminum tile, some alloy tile, paper etc. The N probes measure the thickness of non - magnetic coatings on non-magnetic metals .It is used on anodizing, varnish, paint, enamel,plastic coatings, powder, etc. appliedto aluminum, brass, non-magnetic stainless steel, etc. Automatic substrate recognition. Manual or automatic shut down. Two measurement mode: Single and Continuous Wide measuring range and high resolution. Metric/Imperial conversion. Digital backlit display gives exact reading with no guessing or errors. Can communicate with PC computer for statistics and printing by the optional cable. Can store 99 groups of measurements. Statistics is available.2.SPECIFICATIONSDisplay: 4 digits LCD, backlitRange: 0~1250 μm/0~50mil (other ranges can be specified )Min.radius workpiece: F: Convex 1.5mm/Concave 25mmN: Convex 3mm/ Concave 50mmMin. measuring area: 6mmMin.Sample thickness : 0.3mmResolution: 0.1 μm (0~99.9μm);1 μm (over 100μm)Accuracy: ±1~3%n or 2.5 μm or 0.1mil(Whichever is the greater)Bttery Indicator: Low batter indicator.PC interface: with RS-232C interfacePower supply: 2x1.5 AAA(UM-4) batteryOperating condition: Temp. 0~50℃ .Humidity <95% .Size: 126x65x35 mm; 5.0x2.6x1.6 inchWeight: about 81g(not including batteries)Standard accessories:Carrying case ...................1 pc.Operation manual ............ 1 pc.F probe in built .................1 pc.NF probe in built...............1 pc.Calibration foils ..............1set.Substrate (Iron) ................1 pc.Substrate (Aluminium)......1 pc.Optional accessories: RS-232C cable & software:1.USB adaptor for RS-232C2.Bluetooth interface
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CAT Standard Series -
IBEKO Power AB
Circuit breakers are being tested during manufacturing, commissioning or maintenance stages. The most basic test requires timing measurement using circuit breaker timer. Their primary role is timing and motion measurement of medium and high voltage circuit breakers. Devices from CAT Standard series have suitable application in:electric power generation,distribution system,part of the electric power transmission system,contractors testing,and industrial environments.CAT Standard series meets the requirements of an easy to use circuit breaker timer and analyzer with an attractive price. Furthermore, they are portable and lightweight (weighs only up to 7 kg). Finally, the plastic case is unbreakable and has IP67 protective rating when the lid is closed.CAT Standard series includes five models:Three circuit breaker timers – CAT03, CAT31, and CAT61Two circuit breaker analyzers – CAT34 and CAT64CAT03 is a basic model intended only for timing measurement of main contact operations on the circuit breaker with one break per phase. Unlike CAT03, CAT31 has the possibility of circuit breaker operation initiation, coil current measurement, and auxiliary contact timing measurement. CAT61 differs in comparison to CAT31 by its ability to measure up to two breaks per phase.CAT34 and CAT64 are more advanced compared to CAT31 and CAT61, respectively, since they have additional analog channels. Also, they have the possibility of a travel curve recording.A user can download the test results to a USB memory stick or save it to internal memory. The CAT Standard series internal memory can store up to 500 test results (numerical and graphical data). Optional thermal printer prints test results in tabular and graphical form on 80 mm (3.15 inch) paper rolls. CAT Standard series instruments are compatible with DV-Win software. It provides full control of all CAT functions from a PC, as well as acquisition and analysis of test results.
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PCE Instruments
A paper moisture meter measures the humidity of paper and paper products. Use of a paper moisture meter can prevent costly damages resulting from paper expansion or shrinking. A paper moisture meter determines paper moisture content based on either absolute humidity or relative humidity. Absolute humidity does not take into consideration temperature, while relative humidity relies on temperature and is expressed as a percentage of the total amount of moisture possible at the current temperature. Thus, many paper moisture meter devices feature automatic temperature compensation (ATC).For paper producers, paper manufacturers, paper mills and others in the pulp and paper industry, moisture and humidity control is essential, especially during the production process, as excessive moisture can lead to warming of the paper rolls. A paper moisture meter can be used to detect moisture streaks during the paper production process as well as to identify optimal drying times.Regardless of whether paper is stored in paper rolls in paper converting plants or stacked in sheets and paper bales in commercial printing warehouses, the porous surface of paper gradually takes in moisture relative to the humidity of the surrounding environment. This moisture can be problematic, as too much moisture can cause curling, buckling or the formation of waves in otherwise flat paper products. Moisture also can prevent inks, dyes, paints and coatings from covering and saturating paper properly during printing and processing.PCE Instruments (PCE) offers digital handheld moisture meter devices for measuring the moisture content of paper and paper products such as cardboard, paperboard, corrugated boxes, craft paper, wrapping paper, brown packaging paper, butcher paper, recycled paper, coated paper and more. Different paper moisture meter models utilize different paper moisture measuring techniques, performing moisture content tests of paper products via either destructive or nondestructive methods. Typically, a standard pinless paper moisture meter is nonpenetrating, thus allowing for the nondestructive measurement of paper water content.
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Keystone Compliance
Keystone Compliance is a unique EMC test facility because of our focus on assisting our customers achieve the measurements and certifications that they are seeking. Our lab features three 3-meter EMC chambers and two military/aerospace EMC chambers. In addition to the chambers, the lab significant ground planes, equipment and software that optimize the efficiency of the testing. EMC TestingKeystone Compliance is a unique EMC test facility because of our focus on assisting our customers achieve the measurements and certifications that they are seeking. Our lab features three 3-meter EMC chambers and two military/aerospace EMC chambers. In addition to the chambers, the lab significant ground planes, equipment and software that optimize the efficiency of the testing.Our EMC/EMI testing capabilities include but are not limited to:Radiated immunity testing up to 200 V/m from 10 kHz to 40 GHzRadiated emissions testing up to 40 GHzSurge testing to 10kV/10kA – and higherElectrostatic Discharge “ESD” testing up to 30 kVConducted immunity testing to levels well above the highest defined “standard” levelsMagnetic field immunity testing up to 100 A/m continuous and 1000 A/m short/impulseCustomized transient waveforms to extend level, duration and/or repetition of the standard’s definitionShielding Effectiveness from small panels and boxes all the way up to large enclosures and cabling, with a wide dynamic range all the way to 40 GHzWhat differentiates Keystone Compliance from other EMI test labs is our consultative engineering and expedited EMI test reports. Our staff understand EMC/EMI testing and has extensive experience with radiated immunity, radiated emissions, conducted immunity, conducted emissions, surge, ESD and shielding effectiveness testing. We also cater to specialized testing requirements. If you do not see the test standard or testing requirement you are looking for, please contact us as we may still be able to assist you.For more information about our scope of accreditation, please visit the links below.CISPR StandardsIEC/EN Product Family StandardsIEC/EN Test StandardsISO, SAE and Vehicle StandardsMilitary StandardsFCC, North American and International StandardsShielding Effectiveness TestingLightning and Surge Testing
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RMO-H Series -
IBEKO Power AB
The RMO-H is battery operated and handheld micro-ohmmeter. It is designed for a variety of applications for contact resistance measurement of non-inductive test objects. Typical applications are accurate testing of:medium and high-voltage circuit breakers,disconnecting switches,high-current bus bar joints,cable splices,and different high-current links.Even more, it accurately measures in high-induction filed environments and substations, as well as in factory testing.RMO-H Series contains six models in total, divided in 2 sub-series depending on the test leads length requirement and the battery type:RMO-H1, RMO-H2 and RMO-H3 models are intended for use with short cables (e.g. 1,3 m / 3 m / 5 m). The 1-cell Li-Po battery with 8200 mAh capacity provides output voltage up to 4,1 V DC.RMO-H21, RMO-H22 and RMO-H23 models are ideal for applications where test leads with lengths > 5 m are required. The high output voltage (up to 8,3 V DC) is provided by 2-cells 4100 mAh Li-Po battery.The test current is regulated and can be selected in a range of 1 A to maximum 300 A, depending on the maximum test current rating:RMO-H1, RMO-H21 models – up to 100 A DCRMO-H2, RMO-H22 models – up to 220 A DCRMO-H3, RMO-H23 models – up to 300 A DC.Unlike many other handheld micro-ohmmeters available on the market, our instruments have regulated and user-selectable test currents. Therefore, RMO-H instruments generate an automatically regulated test ramp with stable and ripple-free current during measurement. These revolutionary characteristics in a handheld micro-ohmmeters technology are possible by using sophisticated Li-Po batteries. Consequently, modern battery technology enables you to do multiple measurements, and a full day of testing without recharging the battery.With all RMO-H models, it is possible to make tests on Both Sides Grounded testing objects, in an increased safety environment. Finally, these features in combination with a user-friendly interface (1-click to measure) significantly speed-up testing procedure and make it safer.These instruments store up to 1000 measurements on the internal micro SD card.Our free DV Win software communicates with the RMO-H micro-ohmmeters via a wireless Bluetooth interface. Furthermore, it allows you to download test results, analysis and generate fully configurable test reports.
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TWA Standard Series -
IBEKO Power AB
When it comes to winding resistance measurement on three-phase power transformers and autotransformers, TWA Standard series offers some of the most technically advanced instruments with LCD display in the market. Both models are capable of testing six transformer windings with a one-time cable connection, as well as three-phase automatic transformer demagnetization. The stored magnetic energy is safely automatically discharged at the end of the test. The built-in tap changer control unit enables automated test mode, where the instrument operates the tap changer without operator input and records winding resistance results based on pre-selected stabilization criteria. This option makes the operator’s job significantly easier.Both models can output test currents from 5 mA to 25 A DC for the purpose of winding resistance measurement. TWA40D has a special test mode for checking the synchronization of on-load tap changers with three phases simultaneously tested in parallel, in which the total test current can rise to up to 40 A DC.TWA40D has additional advantages when it comes to non-intrusive tap changer analysis. The unique DVtest method enables checking the moving contacts of on-load tap changers during the transition, measuring the transition time, detecting open circuits, and many other types of faults. It is performed with 0.1 ms sampling rate, simultaneously with the measurement of tap changer motor current which helps with the detection of motor and mechanical issues. A special proprietary algorithm is used for testing tap changers connected through a built-in series (booster) transformer. The DVtest can be performed either on one phase or on three phases simultaneously. It can also be performed as an additional test simultaneously with the winding resistance test in all tap positions.An additional unique advantage of TWA40D is the capability of simultaneously testing the winding resistance of all three phases of a three-phase transformer (connected in a YN configuration). This can significantly shorten the total testing time – for example, it enables the operator to perform 33 measurements instead of 99 on a tap changer with 33 tap positions.The test leads for TWA three-phase transformer winding ohmmeters are interchangeable with the TRT turns ratio testers, which means that both sets of tests can be performed with a single test lead connection to the power transformer terminals.
