Current and Potential Transformers
current and potential transformer T&M instruments.
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Product
Rogowski AC Current Probe,30 MHz, 300 A
N7042A
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The Keysight N7042A Rogowski coil current probe measures AC currents up to 300 A, with bandwidth ranging from 9.2 Hz to 30 MHz. The probe has a thin, lightweight, flexible, and simple-to-use clip-around Rogowski coil that enables current measurement in the most difficult-to-reach parts and confined spaces of a circuit under test. It can also measure large AC current without an increase in transducer size.
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Product
NI-9208, 500 S/s, ±20 mA, 16-Channel C Series Current Input Module
780968-02
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500 S/s, ±20 mA, 16-Channel C Series Current Input Module - The NI‑9208 is designed with industrial systems in mind. It includes a high-resolution mode with 50/60 Hz rejection to remove low frequency noise. It has high-channel density to reduce the number of modules needed, which leaves slots open for other measurement types or for reducing the overall per channel cost of the system. The NI‑9208 uses a standard D‑SUB connection for use with cables and connector blocks.
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Product
Brute High Current Probe
P4301-2F
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Current Rating (Amps): 50Current Rating Remark: 40 Amps for BeCu plungersAverage Probe Resistance (mOhm): 5Test Center (mil): 300Test Center (mm): 7.62Full Travel (mil): 250Full Travel (mm): 6.35Recommended Travel (mil): 167Recommended Travel (mm): 4.24Mechanical Life (no of cyles): 1,000,000Overall Length (mil): 1,750Overall Length (mm): 44.45
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Product
DC Coupled Current Probe
34134A
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Measure a wide range of applications with this battery-powered, clamp-on probe; use with DMMs or voltmeters
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Product
Rogowski AC Current Probe,30 MHz, 600 A
N7041A
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The Keysight N7041A Rogowski coil current probe measures AC currents up to 600 A, with bandwidth ranging from 12 Hz to 30 MHz. The probe has a thin, lightweight, flexible, and simple-to-use clip-around Rogowski coil that enables current measurement in the most difficult-to-reach parts and confined spaces of a circuit under test. It can also measure large AC current without an increase in transducer size.
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Product
NI-9246, 50 kS/s/ch, 20 Arms, 30 Apk, 24-Bit, 3-Channel C Series Current Input Module
783920-01
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50 kS/s/ch, 20 Arms, 30 Apk, 24-Bit, 3-Channel C Series Current Input Module - The NI‑9246 is designed to support direct ring lug connectivity to the three-phase high-current measurements of 1 A and 5 A current transformers (CTs). It is optimized for power, energy, and industrial applications. The safety features, certifications, input ranges, overvoltage ranges, and connectivity are well suited for applications such as power quality monitoring and metering, utility pole-mounted smart switches, utility pole-mounted smart grid reclosers, substation merging units, industrial machine measurements, health monitoring, predictive maintenance and prognostics, and phasor measurement units (PMUs).
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Product
NI-9203, 200 kS/s, ±20 mA, 8-Channel C Series Current Input Module
779516-02
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200 kS/s, ±20 mA, 8-Channel C Series Current Input Module - The NI‑9203 is intended for high-performance control and monitoring applications. It features programmable input ranges and variable connectivity options. To protect against signal transients, the NI‑9203 includes a channel‑to‑earth ground double‑isolation barrier (250 Vrms isolation) for safety and noise immunity.
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Product
Potential Transformers
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Osborne Potential Transformers (PT’s) are used to reduce higher system voltages to lower values that are appropriate for instrumentation and/or protection circuits. They have been designed to meet specified current ratios, and burden impedance at a specified transformation error. One area of unique Osborne expertise is in designing for phase shift when potential transformers are to be used for power measuring applications.
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Product
Brute High Current Probe
P4301-1Z
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Current Rating (Amps): 50Current Rating Remark: 40 Amps for BeCu plungersAverage Probe Resistance (mOhm): 5Test Center (mil): 300Test Center (mm): 7.62Full Travel (mil): 250Full Travel (mm): 6.35Recommended Travel (mil): 167Recommended Travel (mm): 4.24Mechanical Life (no of cyles): 1,000,000Overall Length (mil): 1,750Overall Length (mm): 44.45
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Product
High Current Probes
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*Low internal resistance to minimize arching*PogoPlus bias ball design*High current optimized base material and plating*Higher temperature spring design*Specialized high current tip geometry
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Product
Current Transformer
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Nippen Electrical Instruments Co.
DIGITAL METERS NIPPEN electronic energy meters are panel mounting type innovative energy monitoring devices ,having state of the art electronic microcontroller circuitry for reliability and accuracy. They can be used for 1Ø / 3Ø balanced and unbalanced loads.
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Product
NI-9208, 500 S/s, ±20 mA, 16-Channel C Series Current Input Module
785041-01
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500 S/s, ±20 mA, 16-Channel C Series Current Input Module - The NI‑9208 is designed with industrial systems in mind. It includes a high-resolution mode with 50/60 Hz rejection to remove low frequency noise. It has high-channel density to reduce the number of modules needed, which leaves slots open for other measurement types or for reducing the overall per channel cost of the system. The NI‑9208 uses a standard D‑SUB connection for use with cables and connector blocks.
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Product
CP400X, 400 MHz, ±60 V, 10X Attenuation, Single-Ended Passive Oscilloscope Probe
784254-01
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The CP400X is a coaxial passive probe with fixed 10X attenuation for oscilloscopes that provide 1 MΩ input impedance. It is 2 meters in length. The CP400X attaches to BNC connections on both the signal input and instrument sides.
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Product
NI-9266 , 8-Channel C Series Current Output Module
785046-01
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8-Channel C Series Current Output Module - The NI‑9266 is ideal for interfacing and controlling industrial current-driven actuators. The module has built-in open-loop detection, which generates an interrupt in software when an open loop is detected as well as zeroing outputs to ensure safety and avoid driving actuators at system power on. The NI‑9266 includes channel‑to‑earth ground isolation for safety and noise immunity.
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Product
Current Transformer
ST-9RCT
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Standard Electric Works Co., Ltd
● Primary Current Rating (Amp) : 800~2000
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Product
High-Voltage Differential Probe, 25 MHz
N2791A
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Use the N2791A 25-MHz low-cost high-voltage differential probe to make safe and accurate floating measurements with an oscilloscope. The N2791A differential probe allows conventional earth-grounded Keysight oscilloscopes to be used for floating signal measurements of up to 700 V of differential voltage and common mode voltage.
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Product
Current Transformers
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Rishabh Instruments Pvt. Ltd.,
Rish Nano CT is a very reliable, efficient and robust current transformer for measurement of AC current. It provides 100 mA AC output. It can be used in Circuit breakers. Earth Leakage Protection.
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Product
Current Transformer Analyzer
CT Analyzer
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Current transformer testing in a multifunctional instrument performing excitation, ratio, polarity and winding resistance tests on current transformers as well as burden impedance measurement.
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AC Current Transformers
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CR Magnetics supplies an extensive line of toroidal current transformers for any need. Our offerings include measuring from 10,000 amps to a few milliamps. This includes ANSI, Commercial, Ground Fault, High Frequency, Wound Primary, DC Immune and Nano Alloy current transformers.
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Product
Current Transformer Analyzer/Tester
GF1061
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Beijing GFUVE Electronics Co.,Ltd.
Portable CT PT analyzer is mainly used for field or lab testing, it can finish the measurements (M) and protection (P) class CT, PT and TYP class CT. Adopt 7 inch touch TFT LCD, self-equipped mini type printer supporting field printing; supporting to use USB flash disk to download data or RS232 port to PC control. This model GF1061 CT PT analyzer is the most complete and easy-to-use testing system for protection and metering CTs according to IEEE C57.13 and IEC60044 & IEC61869 standards.
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Product
Current Transformer
ST-30RCT
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Standard Electric Works Co., Ltd
● Primary Current Rating (Amp) : 1600~4000
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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
Current Transformer
ST-3RCT
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Standard Electric Works Co., Ltd
● Primary Current Rating (Amp) : 20~300
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Product
High Frequency Current Transformer
HFCT
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The HFCT is a high frequency current transformer designed specifically for picking up partial discharge signals. It has a split core ferrite to allow retrospective fitting to earth straps without the need for disconnection. The durable body has a hinge and a quick release latch, making use quick and easy. The HFCT is constructed with an aluminium body to provide RF shielding and improved performance in noisy environments.
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Product
Auxiliary Potential Transformers
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Osborne Auxiliary Potential Transformers (Aux PT’s) are used in utility and commercial industrial power systems. Osborne works with our clients to identify the safety advantages of using auxiliary potential transformers (Aux PT’s) to establish protection schemes for high voltage equipment. Aux PT’s step the voltage down to safer levels, normally below 600 V AC.
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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
Current Transformers Test Set
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Supreme Instrument Laboratories
The basic unit is sensitive magnetic comparator and also it incorporates electronic null detector to facilitate the balance. The reference Current 5A. or IA. obtained from Standard Current Transformer and in comparison to that the vector length and phase displacement is measured. The ratio error in percentage and phase displacement in minutes are directly compared and indicated on dials.
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Product
Standard Current Transformers
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Measurements International Ltd.
Single Range, Highest Permeability, Wide Measurement Range, Negligible Current Errors, High Accuracy.
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Product
Precision Multirange Current Transformer
P-5000
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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.
