Instrument Transformer
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SF6 Decomposition Products Detector
JH4000A-4
Xiamen Jiahua Electrical Technology Co.,Ltd
JH4000A-4 SF6 Electrical Equipment Decomposition Products Detector is a high precision, intelligent and portable device, able to make judgment rapidly and correctly based on the content of main decomposition products of insulation materials inside the SF6 electrical equipment like SF6 circuit breaker, instrument transformer, GIS and transformer. It detects SO2+SOF2, H2S, CO and HF. It is reliable, accurate and stable. Inspected by authorities such as the National Institute of Metrology, the device, having excellent performance, complies with relevant international and national standards. It is a product recommended for use by the State Power Grid Company. Decomposition products detection provides reliable evidence for the internal fault diagnosis and it is an effective measure for preventive and corrective maintenance.
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Series Precision Fixed-Ratio Current Transformers
PMT25100
Power Measurement Technologies Inc.
Precision two-stage toroidal current transformers find application as the reference in determining the accuracy of instrumentation current transformers.
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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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Precision Multirange Current Transformer
P-5000
The P-5000 transformer is a laboratory standard. The unit’s excellent accuracy and the Knopp One-to-One calibrating feature make this precision transformer well-suited as a standard for calibration work. This transformer can provide a very accurate determination of the ratio and phase angle characteristics of current instrument transformers having ratios from 5 to 5,000 amperes. This transformer also can accurately extend the range of a 5 ampere ammeter or wattmeter to cover all current values up to 5,000 amperes.
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Instruments Transformers Tester
Calport 100 Plus
Calmet Smart Calibration Devices
Three phase instrument transformers and electricity meters tester class 0.1 or 0.2. It makes possible CT and PT testing on site or in the laboratory. We recommend a new replacement - TE30 Working Standard
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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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Series Precision Multi-Ratio Current Transformers
PMT25090
Power Measurement Technologies Inc.
Precision two-stage toroidal current transformers find application as the reference in determining the accuracy of instrumentation current transformers.
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Transformer Turns Ratio Meter
TTRM 301
SCOPE introduces state of the art precision three phase Transformer Turns Ratio Meter (TTRM ) designed for field testing as well as factory testing of power transformers, instrument transformers and distribution transformers of all types. Along with turns ratio, this light weight and reliable instrument measures ratio deviation, phase angle deviation, magnetizing current and detects tap-position of single as well as three phase transformers in charged switchyard condition. The instrument has facility to automatically detect vector group of all majority configurations available. The differant AC voltage selection offers high accuracy in measurement.
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Portable Analog Instruments
Instrument transformer is a general term for voltage transformers and current transformers that are used with electrical instruments. The main purpose of instrument transformers is to extend the measurement range for electrical quantities (voltage, current, power, power factor) on large-current and high-voltage circuits. They serve to convert currents and voltages to levels that are suitable for measurement, and to insulate the instrument, etc. from high-voltage circuitry.
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Current Transformers
National Meter Industries Inc.
Is an instrument transformer, used along with measuring or protective devices, in which the secondary current is proportional to the primary current (under normal conditions of operation) and differs from it by an angle that is approximately zero.
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ANSI Standard Burden Sets
Voltage and Current
Testing and calibrating instrument transformers often requires standard burdens of reliable accuracy and stability, and burdens that are immune to stray fields and harmonics. The burden sets described below have been carefully designed to meet these requirements.
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Step Up Transformer
MagD
SCOPE proudly introduces Step-Up Transformer - MagD, specially designed to cater the needs of testing of instrument Transformers. Before new systems are put into service or after any occurrence of fault, the instrument transformers need to be tested for their outputs. It is to be ensured that these instrument transformers are giving proper outputs to the protective relays. MagD is used to plot excitation curves for instrument transformers. Inbuilt voltmeter and ammeter, eliminates the need of external meters for plotting of curves. It can also be used for de-magnetization of transformer cores and also turns-ratio tests can be conducted using MagD.
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ANSI Potential Transformer Burdens
The ANSI Potential Transformer Burden Model PB-96-ANSI is designed for loading the Voltage transformers during accuracy tests as per ANSI standard C57.13. The PB-96-ANSI is a dual input ANSI burden providing the inputs of both 120V & 69.3V. It can be used along with the ELTEL Automatic Instrument transformer Test Set. AITTS-98 to test VTs as per ANSI standards.
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ANSI Relaying Current Transformer Burden
The ANSI Current transformer burden is designed for loading the current transformer during accuracy Tests. The ANSI burden is designed as per ANSI burden C57.13.It can be used along with the Eltel Automatic Instrument Transformer Test Set to test CTs as per ANSI Standards.
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Transformer Turns Ratio Meter
TTRM 302
SCOPE introduces state of the art precision three phase Transformer Turns Ratio Meter (TTRM ) designed for field testing as well as factory testing of power transformers, instrument transformers and distribution transformers of all types. Along with turns ratio, this light weight and reliable instrument measures ratio deviation, phase angle deviation, magnetizing current and detects tap-position of single as well as three phase transformers in charged switchyard condition. The instrument has facility to automatically detect vector group of all majority configurations available. The differant AC voltage selection offers high accuracy in measurement.
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Transformer Testing
The ART-3D series of Automatic Ratio Testers are precision instruments, designed to measure the turn ratios, phase displacements, excitation currents of single phase and three phase power, distribution and instrument transformers in conformity to the IEEE C57.12.90 & IEC 60076. Now featuring an enhanced test lead design, the ART-3D is the perfect instrument for real-life field usage. ART-3D series also has Anti Induction circuit which makes it suitable for system voltages upto 765KV.
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Transformer Turns Ratio Meter
TTRM 102
SCOPE introduces state of the art precision single phase Transformer Turns Ratio Meter (TTRM ) designed for field testing as well as factory testing of power transformers, instrument transformers and distribution transformers of all types. TTRM 102 along with turns ratio, measures ratio deviation, phase angle deviation, magnetizing current and detects tap-position of single phase transformer in charged switchyard condition. The range of AC voltage selection offers high accuracy in measurement.Both the instrument have in-built TFT display with touch screen and thermal printer. The user friendly, simple instrument makes the testing more easy. With the touch keypad it is possible to enter required DUT information.The ratio results are displayed with % error. Internal non-volatile memory gives the provision of storing test results.Further data can be downloaded to PC or copied to memory stick through USB port provided.
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Transformer Demagnetization Tester
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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Instrument Transformers Testers
Calmet Smart Calibration Devices
Calmet offers a variety of Instrument Transformers Testers including the TE30 and the Calport 100.
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Instrument Transformer Calibrators
MRL 11
UDEYRAJ ELECTRICALS PRIVATE LIMITED
Automatic measure of contact resistance. True 4 terminal measurement. μP operated, automatically saves results.
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Transformer Tester
Kvtester Electronics Technology Co.,Ltd
High precision instrument for measuring characteristic parameters of transformer capacity, no-load and load. The instrument is a multi-function measuring instrument, which is equivalent to the usual two kinds of test instruments: the transformer capacity tester + transformer characteristic parameter tester. The utility model can precisely measure a series of power frequency parameters of a plurality of transformers, such as the capacity, the type, the no-load current, the no-load loss, the short circuit (load) loss and the impedance voltage.
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VXI Digital Test Instrument
T940 Series
The T940 Series for the VXIbus provides the basis for a complete state-of-the-art digital solution at the subsystem level. The T940 is the solution for both legacy digital replacement and new test stations to be built for digital test including aircraft/ avionics, weapons systems, spacecraft, semiconductors and medical devices.
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Bi-Directional Differential-TTL I/O PXI Card
GX5642
The GX5642 is a 3U PXI instrument card that can be used for general data acquisition, process control, Automatic Test Equipment (ATE), Functional Test, and factory automation applications. The GX5642 consists of 64 bi-directional TTL-to-differential LVDS I/O channels. Each channel has two ports (TTL and LVDS) and can be individually set to operate in either conversion or static I/O modes.
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TD-SCDMA Analysis Using NI PXI RF Test Instruments
NI-RFmx TD-SCDMA
The NI-RFmx TD-SCDMA personality is a highly optimized API for performing physical layer measurements on TD-SCDMA cellular standard signals. NI-RFmx TD-SCDMA is completely interoperable with all NI-RFmx APIs. It provides simple access to the most advanced optimization techniques such as multi-measurement parallelism and multi-DUT measurements. The result is extremely fast and high-quality measurements with minimal software development efforts.
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VXI 12-Channel Digital-to-Analog
65DA2-55
NAI’s 65DA2-55 is a 12-channel Digital-to-Analog Instrument on a VXI board. This single-slot, message-based board provides twelve independent, single-ended, 16-bit, Digital-to-Analog (D/A) channels.
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GSM/EDGE Analysis Using NI PXI RF Test Instruments
NI-RFmx GSM/EDGE
The NI-RFmx GSM/EDGE personality is a highly optimized API for performing physical layer measurements on GSM/EDGE cellular standard signals. NI-RFmx GSM/EDGE is completely interoperable with all NI-RFmx APIs. It provides simple access to the most advanced optimization techniques such as multi-measurement parallelism and multi-DUT measurements. The result is extremely fast and high-quality measurements with minimal software development effort.
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PXI Digital Test Instrument
PXIe-6943
Conduct pattern-based digital tests incorporating the latest parallel, digital, serial, and bus protocols with the PXIe-6943 digital test instrument.This instrument is TPS-compatible with the legacy VXI digital test instrument from Astronics as well as other instrument vendors.
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LTE/LTE-Advanced Analysis Using NI PXI RF Test Instruments
NI-RFmx LTE/LTE-Advanced
Highly optimized RF measurement experiencePerform physical layer analysis on LTE cellular signals including MODACC, ACPR, CHP, OBW, and SEMIncludes support for TDD, FDD, and LTE-Advanced signals specified in 3GPP standards release 12Simple access to advanced measurement parallelism
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Test Instruments
Test instrumentation from COTS to custom, including VXI, PXI and LXI-based platforms.
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3-Axis Non-Robotic Automated Testing System
AT3
The Instron AT3 is a space-efficient, highly adaptable 3-axis mechanical testing platform designed for automated execution of tensile, compression, flexural, and lap shear tests. Built to comply with a broad spectrum of ASTM and ISO standards, it’s well-suited for evaluating materials such as plastics, elastomers, thin films, foils, and metals. The system streamlines the entire testing workflow from specimen measurement and handling to strain measurement and specimen disposal—enabling users to load up to 160 samples and let the AT3 take care of the rest. Boost productivity, reduce manual intervention, and achieve consistent, dependable results with every test cycle.
