Fourier Transform
Mathematically converts a time domain into a function of frequency and their amplitudes.
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Product
Transformer Ratio Meter
TRM 1000
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AJIT Transformer Ratio Meters are the most modern turn's radio meters widely used to test the turn's ratio of high voltage windings, to low voltage windings, of Transformer. These meters are accurate, compact & light in weight.
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Product
Three-Phase Transformer Winding Resistance Meters
TWA Advanced Series
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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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Product
High Impedance Transformers
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Osborne high impedance transformers are used to step-up, step-down and isolate voltages in single phase and three phase circuits. A properly designed high impedance transformer can be used an an equivalent to an isolation transformer connected in series with an inductor. The high impedance characteristic may be employed as a current limiting feature in both the primary and secondary circuity.
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Product
Three Phase Transformer Ratio Meter
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*Three phase lead switching network. *Excitation current meter Accessories: Range Extender 1:5
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Product
Universal Mount Transformer
UET105
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UEi Test & Measurement Instruments
Universal Mount Control and Ringer transformer.
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Product
Automatic Current Transformer Comparator
KATC-C2
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Got older, slower equipment? Knopp’s Automatic Current Transformer Comparator (KATC-C2) is faster, more robust and more accurate! Knopp’s KATC-C2 is a high accuracy current comparator that is compatible with all older generation Knopp comparators, and is designed to be a direct, plug-in replacement requiring no modification of the existing Knopp Current Transformer Test Systems. Save time and money on service by upgrading your comparator to our new next generation model!
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Product
Current Transformers & Bushings
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Measurements International Ltd.
AC Current Transformer, Reference Standard for the Calibration of Precision CTs, Currents as high as 10,000 A, Portable with carrying handle for smaller CTs, Wheels on heavier CTs, Passive or Electronically Aided Compensation.
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Product
Test Equipment for Instrument Transformer
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is desirable for measuring ratio errors and phase angles of low current (voltage) transformers used in electric devices, such as watt hour meters, smart meters, digital current meters, and transducers, etc.
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Product
Special Application Transformers
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Special Application Transformers are available in maintenance-friendly designs with high reliability and minimum losses. These transformers can easily withstand the harshest weather and other conditions to meet the exact demands of power and other industrial applications. They are widely used in different sectors from mining, steel manufacturing, offshore oil, electrolysis to gas platforms. They are easy to install and remove transformers available with highly efficient design to ensure maximum performance.
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Product
Control Transformers
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ENTES control transformers ensure the safe operation of measuring devices with 24 VAC supply voltage for electical control panels. Input voltages of Control transformers are either fixed (230 or 400V) or selectable with taps (400;230+15-15).
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Product
Three-Phase Transformer Demagnetizer
DEM60C
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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.
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Product
Power Transformer
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Transformer turn ratio meter is special designed for power transformer (single phase & three phases) and instrument transformer testing, suitable for testing in substation, transformer manufacturer, meter manufacturer. It helps to detect faulty transformer winding and tap changer position. It’s fully automatic device, can recognizes winding connection and vector group number of transformer winding. The user only need connect measuring cable and press start button and come out the test result.
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Product
Test Sets For Transformer Industries
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Contemporary Test Sets For Transformer Industries are developed to recognize the potentially disastrous current transformer errors. They prevent the primary current from overpowering insulation and short circuits. They are used for developing a testing and maintenance plan for addressing the errors before any failure to save money and time. With these powerful test sets, they are sure to perform saturation testing to test the knee point of a signal by comparing primary and secondary windings.
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Product
Transformers
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RR Enterprises provides all type of transformersSingle Phase and Three Phase upto 100 KVA.The transformers can be→ Air Cooled→ Epoxy Cast→ Oil CooledWe provide transformers in high voltage and low voltage. These are used for various industrial and research purposes.→ High voltage transformers for corona and static elimination.→ High voltage transformers for plasma welding.→ Special purpose high voltage transformers.→ High current transformers for metalissing plants.→ Special purpose high current transformers.
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Product
Filament Transformers
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Osborne designs and produces high impedance and unregulated Filament Transformers. An unregulated filament transformer supplies a specified voltage and current to the filament of an electron vacuum tube. High impedance filament transformers are designed around a tungsten tube filament. Osborne often works with our clients to increase the life-span of their vacuum tubes through the use of a regulated voltage supply.
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Product
Transformer Demagnetization Tester
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Weshine Electric Manufacturing Co., Ltd
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.
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Product
VARIABLE TRANSFORMER DC POWER
208163V
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Motorized Variable Transformer Controlled Power Supply, P/N 208163VInput power: 208 VAC, 6 Amps, 3 PH, 60 HzOutput: 0 to 120 VDC, 16 Amps max.Ripple: 5%Manual control with variable transformerCircuit breaker / ON OFF on the 208 VAC, 3 PH input lineProtection fuse provided on the outputPOWER ON lightIndoor enclosure: 24H x 20W x 9DVoltmeter and ammeter are installed to monitor the output.All input/output connections are available inside the enclosureSystem includes main unit and remote assembly.
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Product
Transformers (Murata Power Solutions Products)
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Murata transformers are ideally suited to high-frequency designs. The products come in a variety of industry-standard packages and can be used in applications where impedance matching, voltage conversion, isolation and current sensing may be required.
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Product
Solid State Active Synchro Control transformer and Solid State Resolver Control Transformer
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Computer Conversions Corporation
The SCT Series are low cost, miniature, solid state control transformers designed for military and industrial control applications. They will directly replace conventional electromechanical control transformers & thus provide digital control to existing analog servo systems. They simultaneously accept a 3 wire synchro input (0) and a digital angle input (0), and provide an ouput which is the sine of the difference between these two input angles (A sin wt sin (0-0) ("wt" is the synchro excitation frequency).
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Product
Precision Multirange Voltage Transformers
WP-36000
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The WP-36000 Transformer is primarily a laboratory standard. The high degree of accuracy and multiplicity of ranges makes this transformer the standard for precision calibration work. With the aid of this transformer, very accurate determination can be made of the ratio and phase angle characteristics of voltage transformers having ratings from 14,400 to 36,000 volts.
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Product
IEC Potential Transformer Burdens
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• Burdens for IEC specifications rated for various input voltages available • 2.5 to 207.5 VA at 0.8 PFIEC Potential Transformer Burdens
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Product
Split type AC Current Transformer
CTF-200T
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*1A output for metering application.*Wire stopper is equipped for the slipping protection.*The special connector is not necessary as the output terminals are provided.*Open circuit protection and nonflammable plastic material.
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Product
ATTR Auto Transformer Turns Ratio Tester
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Chongqing Assen Power Equipment Co., Ltd
Transformer turns ratio tester is a new type of fully automatic tester that uses modern electronic technology to measure the ratio of single-phase and three-phase transformers, and does not require any manual “zero” balance.
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Product
Telecom Transformers
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Our high-performance telecom transformers support multiple home phone line and power line network applications. These transformers have excellent THD performance, small footprints, and are designed to exceed industry standards. Single, dual, quad, six, octal and twelve transformer numbers are available.
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Product
Transformer Test
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Beijing GFUVE Electronics Co.,Ltd.
Check whether the performance of the transformer meets the requirements of relevant regulations and technical standards.
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Product
Single-Phase Transformer Winding Resistance Meters
RMO-TD Series
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Using the most advanced switch-mode technology available today, the RMO-TD series is ideal for winding resistance measurements of inductive objects. Transformer resistance meters and tap changer analyzers are perfect for testing:transformer windings (power transformers, distribution, autotransformers),all types of tap changers,generators,electrical motors,high-current busbar joints,cable splices,and welding joints.In addition, transformer demagnetization can also be done with all RMO-TD instruments.The RMO-TD series contains 3 models, with maximal test currents from 25 A (RMO25TD) to 60 A (RMO60TD).The three independent voltage sense channels enable testing of three windings in series. This enables measurements of winding resistance in every tap position of an on-load tap changer without discharging between the tests.All RMO-TD transformer resistance meters have a built-in tap changer control unit. It enables remote control of on-load tap changer (OLTC) directly from the device. In order to make the most out of this feature, DV-Win software is included which can be programmed 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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Product
Multiplexer For Transformer Testing
MUX-R
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Raytech Multiplexer MUX R is designed to drastically reduce cabling time and increase test performance. It is made to be used with Raytech Winding Resistance and Turns Ratio Meters. Any MUX R configuration can be easily controlled by a Winding Resistance Meter touch panel or by remote.
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Product
Instrument Transformer Calibrators
CTPT 81
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UDEYRAJ ELECTRICALS PRIVATE LIMITED
Tests: Ratio error. Excitation current and curve. Polarity CT / PT TESTER
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Product
Digital Transformation
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Digital Transformation is the combination of digital technology into all fields of business. It’s fundamentally changing how companies monetize, create, and defend value, giving companies a competitive edge. The drive towards digital transformation presents businesses with one of the most outstanding opportunities. Though it may be difficult to define the term ‘digital transformation’, from a wider prospect, it can be defined as a combination of digital technology into various areas of a business.
