Current and Potential Transformers
current and potential transformer T&M instruments.
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Product
Ocean Current
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Designed for long-term, high-accuracy monitoring of water quality, temperature, salinity, and water levels in oceans, coastal waters, and tidal areas.
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Stand-Alone Current Sensors
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The Aanderaa Current Sensors are based on the backscatter acoustic Doppler principle.
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Product
PXI Potential Divider Module 12-Channel (no resistors fitted)
40-282-021
Programmable Resistor Module
The 40-282 is a potential divider with up 24 separate channels. This can be used to emulate potentiometer devices, each channel having a fixed R1 R2 ratio. Additionally, the centre point can be shorted to either of the potentiometer end points.
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Product
Distribution Transformer Tester
NDB-DOC™
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The NDB-DOC™ is a test instrument designed for distribution networks transformers from 10kVA to 2500kVA. 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 NDB-DOC™ 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
Single Gas Transformer DGA
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Hydran composite gas Dissolved Gas Analysis (DGA) products provide essential online monitoring of transformer oil. The Hydran line is the perfect cost-effective application for small- and medium-sized transformers where customers need to know about developing fault conditions that could cause unscheduled outages.The Hydran products allow for the addition of expansion to the base unit, allowing for greater measurement accuracy
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Product
Injection Transformer
J2100A
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The injection transformer is presently the prevalent method for connecting the network analyzer to the circuit being tested, and is primarily used for control loop stability measurements. The goal of the transformer is to inject a signal into the control loop being measured, without impacting the performance of the loop. In order to accomplish this to a reasonable degree, The transformer is isolated and therefore is capable of floating on a high voltage, such as a Power Factor Corrector (PFC), which is often close to 400VDC. Measuring voltages that exceed the voltage rating of the FRA inputs require attenuation probes.
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Current Transformer
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A precision electrical device used to step down high alternating (AC) or direct (DC) primary currents into safe, measurable secondary values for power analysis, energy management, and monitoring instruments.
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Product
Integrated Transformer Test Van
XD90
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Hangzhou Xihu Electronic Institute
The XD90 integrated modular power system testing vehicle provides an integrated yet flexible solution of preforming a wide selection of normal and specialty tests on power equipment. Designed with the effectiveness and efficiency of power testing in mind, this platform achieves the goal of “integration of functions” instead of just a “combination of instruments”. Not only it provides an abundant means of power testing, but with optimized device placement, operational convenience, and safety factor.
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Primary Current Injection
PCI-600
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The VIC Model PCI-600 is a programmable, high-current source that is designed specifically for utility-substation applications. This alternating current(ac) test device is used primarily for injection testing of protective relays. This same device can also be used for testing thermal, magnetic and solid-state motor-protection relays and molded-case circuit breakers.
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Transformer Winding Ohmmeter
TWO-110S
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Transformer Winding Ohmmeter is designed to measure the dc resistance of all types of magnetic windings accurately. It can test transformers and rotating machine windings and perform low-current resistance measurement on connections, contacts and control circuits.
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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
Constant Potential Generator Power Supply Mains 10 to 160 kV
CP160D
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The CP160D is the lightest and most compact generator of the CPSERIES. Featuring a built-in Beryllium window, it is the perfect generator for the inspection of light alloys such as aluminum, magnesium or fiber based materials like glass and carbon, as well as the greater thickness of steel. In fact, with its penetration capacity that is capable of reaching up to 37 mm of steel, the CP160D is able to execute many different types of NDT tasks without the need to ever have to add extra accessories.
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Product
Precision Multirange Current Transformer
P-2000
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The Type P-2000-2 Knopp Precision Current Transformer is useful for high and low voltage work in the laboratory, shop and field for testing, measuring, and calibrating. The excellent accuracy and the One-to-One calibrating feature make it admirably suited as a standard for calibrating work.
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Voltage, Continuity, and Current Tester
FLIR VT8-Series
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The FLIR VT8-Series are high-quality voltage, continuity, and current testers. They feature an optimized, open-jaw design that can fit into tight spaces and reliably measure large-diameter cables. The VT8-600 carries a CAT III-600 V/CAT IV-300 V safety rating and a 100 A/600 V measuring range, while the VT8-1000 carries a CAT III-1000 V/CAT IV-600 V safety rating and a 200 A/1000 V measuring range. Extensive measurement features make the VT8-Series versatile tools – just one meter can get the job done.
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Current Meters
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Measure current using either "Average responding" meters reading linear loads or "True RMS" meters measuring non linear loads.
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Product
Phase Meter Current Shunts
610 and 650
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Clarke-Hess Communications Research
The Model 610 and 650 Current Shunts are specifically designed to operate with the Model 6000A Precision Phase Meter. These shunts are frequency tuned to have negligible phase shift (less than 5m) at 50/60Hz making them ideal for line frequency applications. They can also be idealized for other frequencies as specified by the user. Consult factory for details.
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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
AC Current Transducer
iDVM 333
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The iDVM 333 AC Current Transducer plugs into the iDVM 510 multimeter and measures current (as AC millivolts) with no need to break the circuit. Special Introductory Price: $52.50FeaturesTransformer jaws that detect AC current flowing through a conductorSelectable sensitivity between 1mV/A and 10mV/AHand Guard to protect your hand for safetyLarge, easy-to-operate trigger opens the transformer jaws
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Product
Transformer Winding Resistance Meters
TWA Advanced Series
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The TWA advanced series instruments are designed for six-winding resistance measurement and simultaneous three phase on-load tap changer analysis of both the primary and the secondary transformer windings. This is performed with a one singlestep cable setup, with test currents of up to 40A. Each transformer configuration has a special measurement algorithm which is optimized for the fast stabilization of test results. The TWA instruments generate a true DC ripple-free current. Both the injection of the current and the discharge of energy from the magnetic circuit are automatically regulated.
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Product
AC Current Clamp Adapter
LAD-800
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MULTI MEASURING INSTRUMENTS Co., Ltd.
●Selectable CT ratio 10:1 and 100:1.●φ80mm CT window, possible to measure from leakage to big current up to 1000A.
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Product
High Current Probe HCF34009S350L540
1001372
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The HCF34009S350L540 High Current Probe is engineered for precise battery contacting applications, offering robustness and reliability in demanding environments. With an operational temperature range from -45°C to +200°C, it effectively meets the performance requirements of various technical and industrial settings. This probe's design incorporates a basic contact probe with a pitch of 4.00 mm (157 mil), ensuring compatibility with a wide variety of devices. It is optimized for continuous operation with a maximum current of 16A, delivering consistency and dependability where it matters most.
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Product
Current Sensing
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A current sense amplifier is a differential amplifier providing an analog output voltage proportional to the current flowing into a load connected on its input.
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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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Transformer Degaussing Analyzer
KRI6691
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The KRI6691 transformer degaussing analyzer injects current into the test winding by applying ±90V voltage, and collects the terminal voltage and winding current to draw the hysteresis characteristic curve. Linear quantitative analysis of transformer remanence can be performed, and rapid demagnetization can be achieved by tracking the hysteresis curve.
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L.V. Current Transformers
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ENTES LV Current Transformers are measuring transformers which transform the primary current by a specified ratio to its secondary side with a phase difference of 0 degrees. They provide isolation of the relays and measuring devices from the HV side of the network.
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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
Current Transformer Tester
CT-T1
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The CT-T1 is a microprocessor-based Current Transformer Tester that measures CT excitation current, turns ratio, and winding polarity tests, all without having to switch the leads during testing. The instrument has a fully automatic knee point detection (ASA 10/50, IEEE 30°, IEEE 45°). Although includes 5 low side taps and 1 high side tap.
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AC Current Probes
CWT
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Power Electronic Measurments Ltd
The CWT Rogowski current probe is suitable for measuring AC currents ranging from 300 milliamps to hundreds of kA from below 0.1Hz to >30MHz.
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Combined Transformer
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Combined Transformer is a great solution for projects with dimension restrictions. Because we focus on quality and reliability of our products our combined transformers also require minimum maintenance once installed.
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Product
Automatic Three Phase Transformer Ratio Meter
ATRM PLUS
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*Fully Automatic measurement.*Wide selection of Excitation Voltages of 10V, 40V, 100V, 230V & 250V from front panel.*4V Excitation voltage provided for CT measurements*Ratio range of up to 5000; direct display of measured ratio.*No conversions required.*Automatic Jumper selecting as per the vector*Diagram of Transformer.*Automatic testing of all 3 phases in 3 phase transformers*Without manual intervention.*Displays % deviation from a nominal ratio.*External storage facility using pen drive.*Internal storage up to 10000 readings.*Touch screen 7” Color TFT display with backlighting with*Resolution of 800 X 480.*Tap changer facility.*Computer interface using RS-232 or USB.*Windows Interface software provided for data transfer.*USB printer interface.*Four terminal measurements to reduce errors due to*Winding and lead resistance.*Auto print and storage facility.Fast measurements.
