Current and Potential Transformers
current and potential transformer T&M instruments.
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Product
Current Transformer Tester
CTT
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The CTT is designed to test the current transformer ratio, Phase shift, Polarity, Excitation, Saturation, Winding resistance and Insulation resistance using the voltage method in compliance with ANSI/IEEE C57.13.1 and IEC 60044-1 standards, where voltage is applied to the secondary X terminals of the current transformer.
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Product
Transformer Bench Tester
KVBT
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KV Hipot Power Test Equipment Co.,Ltd
Transformer Test System is applied for ex-work and maintenance detecting on various transformers.
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Product
Current Source-Sink D/A Converters
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Analog Devices’ current source D/A converters (DACs) portfolio is ideal for photonics control applications where low current noise density, low dropout voltage, and high power efficiency, in addition to high channel density, is critical to system performance. The flexibility of the configurable current source D/A converter outputs, and 300 mA current delivery, make them suitable for resistive heaters and proportional solenoid drive.
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Product
Voltage Transformer
PT4
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SHANGHAI POWOO INDUSTRY CO., LTD
- completely enclosed, good mechanical behavior, suitable for various environments, strong voltage isolation ability, delicate appearance; - the lead wire has a pin format, which makes it easy to be fixed on a PCB; - the mechanical dimensions for this series of PTs are relatively small, hence can be used an electronic component; - good linearity, high precision, wide operating range; - ABS anti-combustion plastic casing; - encapsulated with epoxy resin to ensure strong insulation ability.
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Product
Programmable DC Load Current Waveform Generator
9923
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9923 application software can be used to edit arbitrary waveform, providing electronic load simulation different sink current conditions
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Product
Current Monitor Probes
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Current monitor/sensing probes measure superimposed RF currents flowing in conductors or cable harnesses. The main application is to measure conducted emissions to meet various EMC standards.
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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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Product
Current Mirrors
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Analog Devices current mirrors are precision, high dynamic range, wide variable supply parts used for optical power monitoring, voltage biasing with current monitoring, and voltage-to-current conversion. Our current mirrors can monitor current down to as little as 3 nA and as much as 3 mA, with a linearity of 1% or better. The current dynamic range is 120 dB or 6 decades of current range, while the overcurrent protection feature in our devices forces the input pin to ground to avoid part damage. Over temperature (–40°C to +85°C) and process, the dynamic range only suffers 10 dB at the lower end of the range.
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Product
Current Transformer Testers
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Vanguard Instruments Company, Inc.
Performs CT excitation, current-ratio, polarity, and phase angle testsMeasures insulation resistance and winding resistance of the CT seconday windingsMeasures the CT's secondary burdenTest record header information including company, substation name, circuit ID, manufacturer, CT serial number, operator name, and test record-commentsBuilt-in 4.5-inch wide thermal printerPlot Multiple Saturation CurvesStores up to 128 CT test plans and 140 test records internallyUSB, Bluetooth, and USB Flash drive interface
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Product
FTIR – Fourier Transform Infrared
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FTIR stands for Fourier Transform Infrared spectroscopy. It is a powerful gas measurement technology for simultaneous measurements of multiple gases. The ability to detect and measure almost any gas, combined with the robustness and reliability of the technology, makes FTIR ideal for a wide variety of applications.
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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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LXI High Current & Sense SPST Switch, 8x40A, 8x1A
60-191-002-080
SPST Switch
The 60-191-002-080 SPST switching unit provides 8 off 40 A switches and 8 off low current 1 A switches. The mixed & equal quantities of high and low current relays are ideally suited to power supply switching applications allowing the typical four connections (“+”, “-“, “sense +” & “sense –“) from PSUs to be routed through the unit.
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Product
Flux Testing Transformer
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The testing equipment is manufactured in strict adherence with industry standards using superior quality raw materials, sourced from reputed vendor in market.
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Product
Surface Charge and Zeta Potential
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Surface analysis is a vital method for qualifying new materials in technical and biological applications. Surface charge analysis empowers users to closely monitor the surface chemistry from small particles in the nanometer range up to large wafers. Gain insights into modifications resulting from surface treatment and surface interactions with natural environments under near-ambient conditions. Get a competitive edge in optimizing existing products and developing new ones using the Anton Paar instruments which offer zeta potential measurement for a wide range of applications.
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Soil Water Potential Sensors
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Campbell Scientific offers soil water potential sensors that measure soil water potential via two methods: heat dissipation or electrical resistance. The sensors determine the energy status of the water in the soil, which describes the force that holds the water in the soil.
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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
Test Sets For Transformer Industries
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Contemporary Test Sets For Transformer Industries are developed to recognize the potentially disastrous current transformer errors. They prevent the primary current from overpowering insulation and short circuits. They are used for developing a testing and maintenance plan for addressing the errors before any failure to save money and time. With these powerful test sets, they are sure to perform saturation testing to test the knee point of a signal by comparing primary and secondary windings.
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Product
Rugged Igniter Tester With Current Monitor And Single Connection For Measurement And Charging
4314 KVM
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The Valhalla Scientific Model 4314 KVM Digital Igniter Tester is designed to provide extremely safe and reliable resistance testing of explosive or volatile devices. Proven uses include fuses, squibs, igniters, explosive bolts, automobile airbag initiators and many others.
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Product
Current Differential and Overcurrent Relay
SEL-387
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Schweitzer Engineering Laboratories, Inc.
Protect and control any two-, three-, or four-winding power transformer with the SEL-387, which provides thermal and through-fault monitoring, and with SELogic Control Equations, can detect breaker failure.
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Product
Current Preamplifier
1211
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The model 1211 Current Preamplifier was designed to provide all of the features required of a modern laboratory preamplifier. It measures cur rents with full scale sensitivity ranging from 10 to 10 amperes.
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Product
Multi Circuit Leakage Current Monitor
MCM-8000
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By connecting optional CT sensors, the instrument can measure and memorize leakage current of 8 circuits at the same time and the memorized data can be seen even during measurement.
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Resistors for Calibration of Current Measuring Systems and Sensors/Transducers
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ChenYang Technologies GmbH & Co. KG
Is designed and made according to the Standard JB/T8225-1999 for DC resistors used in laboratory and electrical engineering.By using full closed structure and automatictemperature control it ensures resistor good long-term stability and small temperaturecoefficient. This DC resistor is very suitablefor DC current measurement and calibration of current measuring systems and current sensors. The maximal measuring current is 100A with measuring accuracy of ±0.02%
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Current Probe Calibrator
KSZ
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PMK Mess- und Kommunikationstechnik GmbH
Since Current Probes are often exposed to hard working conditions, a performance check is recommendedbefore every use. These Current Probe Calibrators generate square wave pulses from 0.05 A to 1000 A with an accuracy better 1%. They qualify for calibration and adjustment of Current Probes.
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Product
Current Probe
PA-622
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*Max. ±100A DCA*Resolution: ≧10mA*Bandwidth: DC~300KHz*Rise Time: 1.2 uS*Over Range Function*10mV/A, 100mV/A Range*Adaptor/Battery Input*Separating Design,Convenient Durable
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Integrated Current Sensors
HMSR series
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The HMSR is a new generation of high insulated Integrated Current Sensor from LEM. These product family provides a robust, compact and very accurate solution for measuring DC and AC currents in all highly demanding, switching power applications for commercial, industrial. HMSR is a micro core based open loop sensor with a reinforced insulation and overcurrent detections (user configurable and factory set). These features make the device suitable for high voltage applications requiring high precision and strong immunity against external field. The primary conductor (pins 1 and 8) has very low electrical resistance and dedicated pads d
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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
Current Probe
DCP-BTA
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Vernier Software & Technology, LLC
The Current Probe measures DC and low-frequency AC currents up to 600 mA. Use Current Probes in combination with Differential Voltage Probes to investigate Ohm's Law and explore series and parallel circuits. The 0.1 shunt resistor minimizes changes to your circuit. If currents will exceed 1 A, use the High Current Sensor.
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CONTROL TRANSFORMERS
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Our control transformers are robust, flexible in design and come with short lead time. Basically an ideal solution for control panel builders who need transformers in a hurry.
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VOLTAGE TRANSFORMERS
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Designing & manufacturing a range of high quality, voltage transformers in three different frame sizes for both measuring and protection duties. Transformers which are designed to comply with the requirements of IEC 61869-3 or other international standards as required can be supplied to satisfy most Low Voltage applications.
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Product
PXI/PXIe Wide Current Range Multiplexer Module, Quad 6-Channel, 1-Pole
40-514-106
Multiplexer Module
The 40-514-106 (PXI) and 42-514-106 (PXIe) are low density multiplexers in quad 6-channel, 1-pole configuration. They are capable of switching a wide range of current, from 10 μA to 2.5 A at 220 VDC/250 VAC. The current capability of the module permits the use of a single module type for both low and medium current test applications.
