Current Transformer Test Set
See Also: Transformer Test, Transformer Testers, Current Transformer Test
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Product
Integrated Current Sensors
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Current sensors have to be smaller, smarter, cheaper. LEM’s R&D is actively developing a range of ICS to reduce the footprint of the current sensing function and simplify the integration of current measurement in a wide range of applications in automotive, industrial, or residential.
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Product
Flexible Cable Set, 2.4 Mm To 7 Mm
85135F
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Achieve phase stability with these 62.9-cm cables when a DUT is connected between cable ends
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Product
DC BIAS CURRENT UNIT
3265B SERIES
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To evaluate components at currents up to 125 A the 3265B DC Bias Units are used with either the Wayne Kerr 3255B series of Inductance Analyzers or the 3260B Precision Magnetics Analyzer. When one 3265B/25A or 3265BQ/25A DC Bias Unit is connected to an instrument up to 25 A of DC bias current can be set in steps of 25 mA with one unit. Additional DC Bias Units can be added such that with five units connected in parallel it is possible to set DC bias currents up to a maximum of 125 A DC.
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Product
5k Voltage Probe (set Of 3)
5KVPSet
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5KVPSet is a set of three voltage probes that allow direct connection to up to 5,000 Vrms 3 phase power.
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Instruments Transformers Tester
Calport 100 Plus
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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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Product
Impulse Semiconductor High Current Integrated
Transmission Line Pulse Test System
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The Impulse Semiconductor High Current Transmission Line Pulse (TLP) test system is the tool of choice for extracting ESD parameters for transient protection devices in a package, or at wafer level. With accuracy better than 100 milliohms at 40 amps peak current, the Impulse high current TLP is specially tailored to the needs of today's ESD device designers who must accurately measure low values dynamic resistance irrespective of breakdown voltage.
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Process Voltage & Current Data Loggers
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Monitor and log virtually any process voltage or current output from your transducers.
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Product
Clamp type AC Current Sensor／for Leakage Current Measurements(ZCT Series)
ZCT-140S
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*Leakage current measurements of feeder*Ultra compact size*AC 1mA～300A
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Distribution Transformer Tester
ADOC-3
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The ADOC-3 is an equipment that has been designed to test distribution network transformers from 5 kVA to 3MVA.
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Generator Of Direct Current And Voltage
GPTN
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The module is intended for use as part of information measuring systems based on the VXI-bus trunk. The module is designed to generate constant current or constant voltage.
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Product
Precision AC/DC Active Current Shunt
2575A
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A versatile, powerful calibration tool, the 2575A Precision AC-DC Active Current Shunt measures both AC/DC current and works as a standard for low-level resistance calibration requirements.
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Product
Current Clamps
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Due to its variable measuring functions, the digital clamp meter can be operated universally. Useful details, such as the large display, manual or automatic ranging and measurement position lighting, makes operation particularly easy and reliable.
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Product
Epoxy Resin Silicon Rubber Outdoor Voltage Transformer
JDZW-10RG
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Beijing GFUVE Electronics Co.,Ltd.
Outdoor voltage transformer of the type JDZW-10 is single phase and epoxy resin silicon rubber insulated product, it's used for metering electric energy, voltage control and relay protection in 50/60HZ rated voltage less than 12kV electric system. It can be used for medial voltage AIS, or can be used for medial voltage switchgears. They can operate in all kinds of environments (such as wide range temperature (-50~70℃), high altitude, high humidity, high pollution or salt). This model JDZW-10 outdoor voltage transformer is also as voltage source to supply 220V voltage.
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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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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
Air Core Current Limiting Reactors
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Current Limiting Reactor (CLR) is one of the most effective short circuit current limiting devices. It reduces stresses on busses, insulators, circuit breakers and other high voltage devices. Use of CLR is the most practical and economical approach at current limiting.
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Product
Adjustable Test Stab Set
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The ETI adjustable test stab set may be used with your high-current circuit breaker testers to maximize efficiency and convenience for testing multiple breakers. Our stab system allows your technicians to test breakers in-place and avoid jacking breakers up or down for testing. By combining mobility and flexibility into one simple system, this stab set is a proven improvement over conventional designs. The components in the adjustable stab set are made of 120 pounds of 110 copper.
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Product
Power Calibrator And Protection Relay Test Set
CP11B
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Calmet Smart Calibration Devices
Single phase, class 0.02 and 0.05 power quality calibrator up to 120A and 560VAC with programmable power quality parameters. It makes possible to make automatic test of electricity meters, measurement transducers, current transformers and protection relays.
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Transforming Analog Circuit Breaker Testers
MAC-21
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The MAC-21 uses proven microprocessor and A/D converter technology to provide real-time waveform analysis. This ensures accurate true-RMS readings of current pulses, even with DC offset and distortion, which are typical in primary injection testing. Intelligent threshold algorithms provide accurate trip time measurement. Integration of measurement and control functions allow advanced features such as preset on times, auto ranging, and optional printer or computer interface.
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Product
AC/DC Current Probe, 50 MHz, 15A
1147B
Battery Probe
The 1147B is ideal for capturing transient current signals such as those found in motor controllers, switching power supplies, inverters and current amplifiers driving inductive loads.
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Split type AC Current Sensor
CTF-400A
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MULTI MEASURING INSTRUMENTS Co., Ltd.
Suitable for current measurements of main cable. 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
Memory Test System
T5801
Test System
Capable of Testing Ultra-High-Speed DRAM Devices, Supporting Next-Generation GDDR7, LPDDR6, and DDR6 Technologies
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Product
Transformer Polarity Checker
865
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This instrument is used to check the correctness of polarity markings on transformers. In operation, the two leads carrying the test current are connected to one of the transformer windings. The other two leads from the indicating meter are connected to the other winding.
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High Power Precision Current Sensing Resistors
HPCR4T
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High Power Precision Current Sensing Resistors of HPCR4T designed with four terminals, are distinguished by excellent long term stability & TCR. The Kelvin connections of this device allow for high precision measurements even with low resistance values. HPCR 4T has a non-inductive copper manganin element inserted into the ceramic case and finally sealed with a cement molding.
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High Current Probe HCF77211B100G150
1147960
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The High Current Probes (Power electronics) HCF77211B100G150, designated with order code 1147960, are meticulously designed for precision applications in power electronics. These probes stand out due to their robust construction, featuring a basic contact probe design that allows for exceptional performance across a wide temperature range of -45°C to +200°C. With a continuous current rating of 20A and a typical contact resistance of just 10 mOhm, they ensure efficient and reliable electrical connections essential for various testing environments.
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Current Injection Sets
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Built in c based Time Interval Meter measuring from1 millisec to 9999 sec. Panel with easy and clear legends to read. Continuosly variable outputs. Auto Cut-off & output isolated. Self sensing of contacts i.e. NO or NC Potential free star stop signals Available in Portable / Lab type models with metal cover
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Product
Current Measuring Instruments
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The testo 755 current/voltage testers are fast and easy to use, especially when you are testing many circuits. The convenient open-jaw current tester automatically turns on when voltage exceeds 6V. It then auto-selects the correct parameters and range for your test. These rugged testers are suitable for virtually all your daily electrical measuring tasks.
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Product
Basic Current Clamps
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PeakTech Prüf- und Messtechnik GmbH
Are ideal for current measurement in electrical systems and control cabinets, since only single wires are guided through the clamp jaws for contact-free current measurement and no electrical connections have to be disconnected. This method also enables measurements of very high currents, which would overload any standard multimeter if connected directly.
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Product
Flexible Rope-Type Current Probe
RCT1A and RCT5A
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These probes have great bandwidth ensuring accurate measurement even with harmonically distorted wave shapes. For all RCT1A/RCT models, a NIST, NAVLAP, NPL (UKAS) factory traceable calibration certificate and certificate of conformance is supplied. UL/CSA approved materials are used throughout. Three phase and single phase flexible AC current sensors (rope sensors) are available for fast installation in confined spaces, eliminating the need for Electrical Supply Shutdown. Available outputs are 1A @ 2.5VA and 5A @ 0.5VA, this means long cable lengths from current sensor to signal conditioner allow these low VA ratings to be used, even when feeder cable to energy meter distances are large (up to 98 feet / 30 meters)
