Current and Potential Transformers
current and potential transformer T&M instruments.
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Product
SparkFun Current Sensor Breakout
ACS723 (Low Current)
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The low current version of the SparkFun Current Sensor Breakout is a high accuracy board that utilizes the ACS723 for low to moderate AC and DC current sensing applications. The ACS723 sensor uses a Hall effect sensor to output a voltage relative to the current flowing through the IP+ and IP- pins on the board. The advantage of using a Hall effect sensor, specifically, is that the circuit being sensed and the circuit reading the sensor are electrically isolated meaning that, although your Arduino is running on 5V, the sensed circuit can be operating at higher DC or AC voltages!
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Product
Eddy Current Array
BRIO
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BRIO is an advanced, ultra-portable Eddy Current Array (ECA) instrument designed for in-service inspections in aerospace, oil & gas, power generation, and manufacturing industries.
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Product
Clamp type AC Current Sensor/for Leakage Current Measurements(ZCT Series)
ZCT-140
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*Leakage current measurements of feeder*Compact size*AC 1mA~300A
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Product
Current Differential Relay
SEL-587
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Schweitzer Engineering Laboratories, Inc.
The SEL-587 Current Differential/Overcurrent Relay provides protection for any two-input apparatus, such as transformers, motors, generators, and reactors. Apply it for differential and overcurrent protection and use event reports for quick post-event analysis.
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Product
Current Probes
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Innovative DC to 5MHz "positional" current probe capable of measuring currents in PCB tracks, component legs etc. without the need to break the connection or surround the conductor.
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Product
AC Test Transformer
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Shanghai Guantu Technology Co., Ltd.
How the AC test transformer prevents the overvoltage generated by the frequency conversion series resonance test device is a relatively simple problem, but the overvoltage caused by voltage fluctuation is difficult to appear when the overvoltage protection is set. Generally, the overvoltage of the frequency conversion series resonance test device will appear in the frequency sweep stage of the instrument, that is, in the process of finding the resonance point. Those who have used it know that in the process of finding the resonance point of the frequency conversion series resonance test device, the voltage and frequency have a parabola-like linear relationship. By default, the system finds the high voltage, that is, the apex of the parabola as the resonance point.
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Product
Current Probe/DMM
685
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The #685 is a great tool for all purpose electrical testing. Applications include: fuel injection systems, fuel pumps, charging systems, electric motors, and most parasitic drains. Capable of measuring as low as 10 milliamps!
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Product
Time, Current, And Resistance Meter
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AllWin Instrument Science and Technology Co., Ltd.
1. Time, current and resistance can be displayed simultaneously2. Out put current:5~30A. Ground resistance range: 50~600 mohm
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Product
Current Sense Amplifiers
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Analog Devices’ current sense amplifiers offer excellent performance for a wide array of automotive and power management applications. These devices accurately amplify small voltages in the presence of large common-mode voltage, and provide high bandwidth, as well as level shifting and bidirectional capability. Excellent dc and ac accuracy over a wide temperature range from –40°C to +125°C minimizes errors in your measurement loop while not sacrificing on cost and package size.
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Product
Leaking Current Meter
7610B
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Peaceful Thriving Enterprise Co Ltd
This is a stable, low power consumption, and high accuracy 3 1/2 digits (2000 counts) leaking current tester for automobile. Leaking current for automobile is generally as small as milliamps, which is hard to measure by clamp meter. By plug this meter with the fuse box, user is able to measure leaking current as small as 1 mA.
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Product
Uniload Voltage Transformer
2J4-4
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The Type 2J4-4 Knopp Uniload Voltage Transformer Test Set consists of three major parts:
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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.
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Product
Instrument Transformer Testing
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HAOMAI Electric Test Equipment Co., Ltd.
Testing for current and voltage/potential transformers to ensure reliable and accurate operation and avoid outages.
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Product
Current Clamps and Transducers
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High-accuracy Current Sensors and TransducersHigh-accuracy sensors for AC/DC current measurement and power analysis. From current clamps to high-precision zero flux current transducers and Rogowsky coils.
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Product
Current Data Logger 0-24mA
VA601-A125
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Shanghai Yi Hua V&A Instrument Co., Ltd. CO.,LTD
Multi-function record meter is a new record meter designed for the actual demand of various industrial site, which integr.
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Product
Electronic AC Potential Standard
PMT25010
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Power Measurement Technologies Inc.
Provides the electronic equivalent of a standard potential transformer as typically required for instrumentation potential transformer accuracy testing.
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Product
Split type AC Current Transformer
CTF-100T
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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
Eddy Current Flaw Detector
US-525M
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United Western Technologies Corp
The US-525M multi-channel eddy current testing instrument is a rugged industrial rack-mounted instrument offering multi-channel testing, integral digital strip chart, as well as Ethernet control and data transfer to meet your in process testing requirements. This instrument offers up to eight channels, with a frequency range of 20 Hz to 10 Mz, a high signal-to-noise ratio, a bright 12-inch diagonal color LCD flat-panel screen, and data storage of 32 Gig. It offers input/output (I/O) capability, USB and Ethernet connectivity, as well as three discrete alarm gates with independent outputs per channel. for your on-line bar, tube, wire and specialty component testing needs.
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Product
Voltage and Current Measuring Technology
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HIGHVOLT Prüftechnik Dresden GmbH
Designed for the measurement of alternating current (AC), direct current (DC), lightning (LI) and switching (SI) impulse high voltages (HV) as well as AC and impulse high current (HC) according to IEC 60060, IEC 61083 and IEC 60052, available as indoor and outdoor design.
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Product
Distribution Transformer Tester
DOC-2000™
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The DOC-2000™ is a test instrument designed for distribution networks transformers up to 167KVA. It can determine the presence of short circuits or an open circuit in the distribution transformer primary winding & also short circuits on the secondary winding. The DOC-2000™ is designed to be operated from an arial device or from the ground at the end of a hot stick without disconnecting the transformer’s secondary windings.
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Product
Low Current Probe 80A
695
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Great tool for accurate measurement of low current. Use with your graphing meter or lab scope to view current waveforms on fuel injectors, fuel pumps, primary ignition coils and more. Also works very well with digital multimeters. Resolution of 10 milliamps is low enough for most parasitic drain testing. In addition, the clamp opening of 1/2 inch is large enough to clamp over most negative battery cables for those parasitic drain tests.
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Product
Current Probes
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Current probes allow you to measure DC or AC current. Yokogawa's selection of current probes allow measurements ranges up to 500 ARMS and bandwidths up to 100MHz.
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Product
Surface Potential Measuring Instrument
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In the electronic equipment assembly process, there are many items that are charged on the order of kV, such as resin molded products and films. This digital electrostatic potential measuring instrument is suitable for processes with relatively high electrostatic control voltage.The measurement range switching function makes it possible to measure from low potential measurement of electronic devices to high potential measurement of resin molded products, film / printed circuit board manufacturing, etc.
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Product
Instrument Transformer & Switchgear Testing
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Our stationary and mobile instrument transformer test systems are used to test current and voltage instrument transformers. Among other things, accuracy testing, demagnetization and insulation testing are possible.
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Product
Transformer Turn Ratio Instrument
ART-3D
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The ART-3D is high precision instrument designed to measure ratios, magnetization currents, phase-shifting in power transformers, distribution transformers, potential and current transformers, in conformity to IEEE C57.12.90 and CEI/IEC 60076.
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Product
Logger with Current Clamp0.15 to 200A
TGP-4810
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A data logger, housed in a rugged case, supplied with a Chauvin Arnoux Current Clamp . This unit is ideal for mains and power consumption monitoring.
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Product
Dual Surge Current Generator
MIG0624T-K12
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Designed for testing telecom surge protection devices according to ITU-T K12. The generator has two indepedent impulse outputs which allow testing of two and three terminal protection devices such as gas discharge tubes (GDT). The generator can be configured for two terminal devices or with the outputs in parallel to increase the current impulse for two terminal devices.
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Product
High Current Probes for EV Battery Packs
High Current Probe
Up to 500Amps - customized connections - battery pack charging.
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Product
Current Transformers
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The Institute of Electrical and Electronic Engineers defines a current transformer (IEEE Std C57.13) as “a transformer intended to reproduce in its secondary circuit, in a definite and known proportion, the current of its primary circuit with the phase relations substantially preserved”. Its primary winding is connected in series with the conductor carrying the current to be measured or to be controlled and its secondary winding is connected to the measuring, protection or control devices. Osborne designs and manufactures current transformers which are used for instrumentation applications, others which are used for power system synchronizing applications and others which are used in protection circuit application. They have been designed to meet specified current ratios, burden impedance and transformation errors.
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Product
Precision Pulsed Current Sources
SpikeSafe Performance Series
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SpikeSafe™ Performance Series Current Sources supply DC and precision continuous or single pulse current for light measurement and other applications. With sustained output power and no duty cycle limitations, Performance Series Current Sources support a broad range of applications.





























