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Transformer Test Equipment
DV Power test instruments perform various diagnostic tests on power and instrument transformers. Even more, a unique feature is a condition assessment of on-load tap changers. Performing a transformer test before their breakage can be crucial.Test instruments are portable and enclosed in durable metal cases. Also, the 19” rack-mounted version suitable for factories is available as well.Applications supported by DV Power transformer test equipment include:Winding resistance measurement (IEC 60076-1)Analysis of on-load tap changers (IEC 60214-1)Heat run test (IEC 60076-2)Automatic transformer demagnetizationTurns ratio measurement of power and instrument transformers (IEC 60076-1)Excitation current measurementPhase angle measurementTransformer vector group detectionDemagnetization status verificationAll of the above-mentioned measurements are performed with the highest accuracy.The advanced DV-Win PC software collects both numerical and graphical results. As a result of that, these features provide an easier and more efficient analysis. After the test, DV-Win software generates a test report with a single click. Furthermore, a user can easily customize the test report and save it in different formats, such as XLS or PDF.Finally, the analysis of on-load tap changers is performed by the new method called dynamic resistance measurement (DRM). This is a non-intrusive method. Therefore, it allows detecting problems in on-load tap changers without disassembling them.
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Separating Transformers
Is a transformer in which the primary and secondary windings are galvanically/electri- cally separated with basic insulation. Isolating transformer: A separating transformer with a protective partition between the primary and secondary windings.
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Control Transformers
Osborne’s Control Transformers are commonly used to step down primary circuit voltages to lower voltages to be used for control circuit applications. These units set the standard for premium, high performance, hand crafted control transformers. Your customers will appreciate your decision to work with the quality and reliability of Osborne Transformer’s control transformers.
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Current Transformer Field Test Set
1043
The Catalog 1043 Current Transformer Field Test Set is a simple and inexpensive means whereby a current transformer installation may be quickly checked for many sources of trouble. The tests are made without interrupting the Customer's service and while the load is on.
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Power Transformer Monitoring
Optimize the efficiency of your transformers by relying on our flagship DGA monitoring system with long-term stability, no maintenance needs, no false alarms and a revolutionary method for detecting ambient air ingress.
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Motor Drive Analyzer, 350 MHz, 8 Ch, 12 bits, 10 GS/s, 50 Mpts/Ch
MDA 8038HD
Static power analysis - like a dedicated power analyzer.Dynamic power analysis – capture more information.Complete test coverage – control system, power section, motor.Comprehensive mechanical interface.Harmonics calculation option.Vector display option (THREEPHASEVECTOR).Waveform Transformations option (THREEPHASEdq0).16 Channels with OscilloSYNC™.
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Insulation Tester, Digital Megohmmeter, 500V, 1kV, 1.5kV, 2.5kV, 5Gohm to 100Gohm, 202 mm
72-9405
Tests the insulation integrity of wires, arrestors, transformers, motors, and other electrical devices. Digital display for easy reading. Battery operated device works with the press of a button.
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hyperspectral imaging sensor
Hyper-Cam
The Hyper-Cam is a lightweight and compact hyperspectral imaging sensor which uses Fourier Transform Infrared (FT-IR) technology. This advanced high-performance spectrometer allows to detect and identify substances either gases or solids from a distance of up to 5 kilometers. It provides real-time chemical imaging as well as unparalleled spatial and spectral information about the IR targets under measurement.
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Digital Signal Processor Card for PCI Bus
SI-C6713DSP
The SI-C6713DSP from Sheldon Instruments is a family of powerful Digital Signal Processor (DSP) cards for your PC equipped with a 32 bit PCI bus. It is based on Texas Instruments’ 300Mhz TMS320C6713, 32 bit DSP, and can transform your system into an ultra high performance development platform and DSP accelerator.
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High Impedance Transformers
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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Adjustable Isolating Transformers
PeakTech Prüf- und Messtechnik GmbH
The PeakTech 2235 is a 2 in 1 laboratory isolating transformer with integrated DC power supply, which was designed with the aspect of high safety requirements for use in research, science and repair. The device has a dual adjustable DC, AC output, which can also be used for constant voltage or current and offers high stability and performance. The output voltage or the output current can be read exactly on two separate 3-digit LED displays and the fixed output supplies a voltage of 5 V. The device is protected against damage by overload and short circuit by reliable overvoltage protection and can be placed in a 19 ”rack installed or used as a table device (“stand-alone”).
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CT Analyzer
PCT200i
PCT200 series CT test set (CT Analyzer) is a current transformer test equipment specially designed for current transformer characteristic test and with additional PT test functions for reference test. PCT200i owns more test items and higher technical parameters.
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Automatic Transformer Oil Test Set With Printer
Oil Test is an equipment designed to test the dielectric strength of Insulating Oils as per relevant specifications vis. IS 6972. It is a useful equipment for Transformer / Switch Gear manufacturing units. Oil fettering agencies, repair shop and electrical maintenance departments.
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Three-phase Electricity Meters
Three-phase static electricity meters AMT B1x-S(D)xxTE are determined for single-rate or double-rate active energy measurement in direct and indirect connection, displaying results on mechanical register with stepping motor. In the case of CT (current transformer) operated meters (x/5A) it is necessary value of register to multiply by the current transformer ratio.
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Three-Phase Transformer Demagnetizer
DEM60C
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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Differential Transformer Type Extensometers
DT Series
ISO Class 1 Compliant Differential Transformer Type Extensometers The ISO 6892-1 standard for tensile testing of metallic materials prescribes Class 1 or higher extensometers, and JIS Z2241 prescribes Class 2 or higher extensometers when measuring withstanding pressure. The DT series includes Class 1 compliant differential transformer type extensometers, which can be used to implement test methods compliant with metal tensile test standards.
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Tan Delta Test System
Precision measuring bridge is designed for determining the capacitance and dielectric dissipation factor of liquid and solid insulants, cables, capacitors, line transformers, generators, motors, bushings etc. Furthermore it can also be used for power loss measurement on shunt reactors or similar apparatus. This system is suitable for both low and high voltage measurement at line frequency. Measurement reports can be printed. This measuring equipment has been specially developed to maximise efficiency in production and quality control environments. Its outstanding accuracy also makes it suitable for laboratory and research applications.
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Lightning Current Generator
Shanghai Guantu Technology Co., Ltd.
The lightning wave impulse current generator is an impulse current generator that generates a simulated lightning current waveform . Its working process is as follows: first, the transformer charges the capacitor bank through the silicon pile, when the charging voltage reaches a predetermined value, the spark gap is triggered, and the capacitor is discharged through the total inductance and total resistance of the circuit. When the resistance is greater than or equal to the critical damping value, a unidirectional impulse current wave is generated in the circuit. When the resistance is less than the critical damping value, an oscillating impulse current wave is generated. The magnitude of the impact current amplitude is related to the circuit parameters. When the capacitance value and charging voltage are the same, the smaller the inductance value, the greater the current amplitude. In order to obtain as much current as possible, a pulse capacitor with a small inductance value is usually selected, and the total length of the connecting line should be as short as possible when arranging the main capacitor, so that the total loop inductance value can be reduced as much as possible.
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Oil Test System
The Oil Test system Model OTS 2K1 is portable transformer oil Test system. It is a specially designed for accurate measurement of Loss Factor, Permitivity & Volume Resistivity Measurement of Transformer Oils & Petroleum jellys. The test frequency is 50 Hz . The system is provided with Mode Selector Switch so that once the oil cell is connected, it can measure all Three parameters in different modes without handling the test leads.
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Combustible Gas Meter
921A
The Arbiter Systems®, Inc. Model 921A Combustible Gas Meter is a rugged, portable instrument that measures total combustible gases (TCG) in oil-filled transformer nitrogen gas blankets. TCG measurements have been shown to be good indicators of transformer health.
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Standard Tap Position Indicator
NMC,s Tap Position Indicator is a Microprocessor based specially designed instrument used to indicate the Tap Position of the Power Transformer with On Load Tap Changer.
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Bobbin Winding Coil Tester
SS108A series
Bobbin winding coil testers are used to test various coil of turns. Such as: generator winding turns, transformer winding turns, motor winding turns, inductor winding turns, contactor winding turns, relay winding turns, sparking winding turns, ignition winding turns, speaker voice coil, etc.
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CT/VT Test System
Fully pre-wired comprehensive turn test system. *Suitable for CTs up to 6000A & VTs up to 132kV. * Precision to (0.005 class) internal multi-ratio standard CT. * Internal 4KA current source. * State-of-the-art Instrument Transformer Test Set AITTS-98 with computer & printer interfaces. * Electronic potential divider facilitates testing any VT ratio upto 132kV. * Current & potential burdens.
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PNA Microwave Network Analyzer
N5224A
Reach for unrivaled excellence in your measurements and designs Transform deeper understanding into better designs with the PNA's outstanding measurement integrity Meet your toughest measurement challenges with the highest performing microwave network analyzer in the industry Get the best accuracy with Keysight's S-parameter measurements Meet your specific budget and measurement needs by customizing to just the right level of performance. Every spec verified, adjustments included Lock in support & peak performance from the start
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Fourier Transform Optical Spectrum Analyzer, 600 - 1700 nm
OSA202C
Thorlabs' Optical Spectrum Analyzers (OSAs) perform highly accurate spectral measurements. Compatible with fiber-coupled and free-space light sources, these compact benchtop instruments suit a wide variety of applications, such as analyzing the spectrum of a telecom signal, resolving the Fabry-Perot modes of a gain chip, and identifying gas absorption lines. Many commonly available OSAs use grating-based monochromators, which have slow acquisition times due to the need to mechanically scan the grating and average out noise at each wavelength. Thorlabs' OSAs acquire the spectrum via a Fourier transform using a scanning Michelson interferometer in a push/pull configuration. This approach dramatically improves the acquisition time, enables a high-precision wavelength meter mode with 7 significant figures and ±1 part-per-million accuracy, and allows the included software to provide robust statistical analysis of the acquired spectra, as explained in the Design tab.
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Multi-Function Transformer Turns Ratio Tester (TTR)
HTBC-V / 252
Wuhan Huatian Electric Power Automation Co., Ltd.
Suitable for transformer testing of three-phase transformer, z-winding transformer, rectifying transformer and railway electrical system.
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Transformer DC Winding Resistance Tester
HTZZ-5A / 230
Wuhan Huatian Electric Power Automation Co., Ltd.
Applicable for transformer to submit the dc resistance testproject around group in pick up and overhaul project.
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Current Transformers & Bushings
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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Transformer Protection
Schweitzer Engineering Laboratories, Inc.
Transformer protection products and systems provide complete primary and backup protection for all types of transformer faults. They are suited for use in utility-, industrial-, and commercial-scale power transformer systems.
