Current and Potential Transformers
current and potential transformer T&M instruments.
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AC/DC Current Probe (1-Channel), 3 MHz, 50 UA
N2821A
As modern battery-powered devices and integrated circuits become more green and energy efficient, there is a growing need to make high-sensitivity, low-level current measurements to ensure the current consumption of these devices is in acceptable limits. The N2821A high-sensitivity probe is engineered to make high-dynamic-range, high-sensitivity measurements to meet today’s challenging current measurement needs.
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Primary Current Injection Test Set
T 2000
T 2000 is a portable current transformer test set which allows to perform many different measurements such as saturation, ratio and polarity tests and CT winding resistance test. Substation maintenance and commissioning test equipment, T 2000 is extremely appreciated by electrical engineers for its high accuracy and portability.
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30A, 50 MHz High Sensitivity Current Probe - AC/DC, 30 A rms, 50 A Peak Pulse, 1.5 meter cable
CP030B
Teledyne LeCroy current probes are available in a variety of models for a wide range of applications. The full range of Teledyne LeCroy current probes includes models with bandwidths up to 100 MHz, peak currents up to 700 A and sensitivities to 1 mA/div. Teledyne LeCroy current probes are often used in applications such as the design and test of switching power supplies, motor drives, electric vehicles, and uninterruptible power supplies.
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Split type AC Current Sensor
CTF-400A
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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Control Cabinet for Testing Transformer in Power Test Project
XC / 595
Wuhan Huatian Electric Power Automation Co., Ltd.
Your product description goes here.
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Current Sense Magnetics
Current sense magnetics are used as a low loss method for sensing AC current in a circuit and also provide electrical and safety isolation between the source of the current and the measurement circuit. The key parameters for a current sense transformer are the rms current rating (to ensure it does not overheat in the application) and the safety and voltage isolation (to ensure it conforms to the end-application requirements).
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Thermistors (Temperature Sensors, Current Control)
The resistance value changes in response to temperature changes in the ambient environment or due to heat generated by applied voltage or current.
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Secondary Current Injection Test Trolley
SCR ELEKTRONIKS have developed SECONDARY CURRENT INJECTION TEST TROLLEY for Switchgear items, CT manufacturer and where three phase current application is called for. It is low Voltage, 3 phase Current source with control circuitry, digital read out for test current and trip time measurement. We can select different CT ranges for each phase independently and adjust the current as per the required test Current.
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Variable Transformer DC Power Supplies
Variable DC power supplies are AC to DC power supplies with a variable DC output. The output can be varied with a Variable Transformer (also known as variac). The Variable Transformer can be adjusted manually or with a motorized control. The AC input power can be single phase or three phases. With single phase AC input, the DC output ripple is very high (50%). With three phase AC input, the DC output ripple is low (5%). This would be a key benefit for selecting three phase AC input instead of single phase.
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GDGS Transformer Power Factor And Tan Delta Tester
Chongqing Gold Mechanical & Electrical Equipment Co.,Ltd
GDGS Transformer Power Factor and Tan Delta Tester
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Three-Phase Transformer Demagnetizer
DEM60C
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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2000 Amp DC / 1500 Amp AC Current Probe
DC2000
Our DC2000 Current Probe measures up to 2000 amps DC (as well as 1500 amps AC). Self-powered via our meter, so there are NO batteries that can run down during a measurement session.
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Transformer Preamplifier
SR554
Stanford Research Systems, Inc.
The SR554 is a low-noise, transformer-coupled preamplifier optimized for source impedances between 0.05 Ω and 1 kΩ. With an input noise of only 0.1 nV/√Hz, the SR554 can be used in a wide range of low-noise applications.
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Clamp type AC Current Sensor／for Low Leakage Current Measurements(ZCT Series)
ZCT-340SL
MULTI MEASURING INSTRUMENTS Co., Ltd.
*Best sensor for low leakage current measurements of less than 1mA.*Suitable for low current measurements of terminal feeder.*High sensitivity and least affection from external magnetic field.
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Rectifier Transformers
Osborne’s Rectifier Transformers are used in conjunction with various rectification configurations to convert AC input to DC output(s). Key characteristics include regulation, transformer utilization and AC ripple. Osborne rectifier transformer designs are often engineered to operate in advanced rectifier circuit applications.
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Through Hole Type AC Current Sensor
CTF-400B
MULTI MEASURING INSTRUMENTS Co., Ltd.
*For AC current and power measurements.*Suitable for current measurements of main cable.*Measuring range:AC 1A～400A.
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PXI/PXIe Wide Current Range Multiplexer Module, Dual 12-Channel, 1-Pole
40-514-107
The 40-514-107 (PXI) and 42-514-107 (PXIe) are low density multiplexers in dual 12-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.
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Transformer Monitoring
MTE offers a broad range of products and solutions for the online gas-in-oil monitoring of transformers (online DGA). With its individual and modular system components MTE provides the optimal customer oriented solution for utilities, industries and transformer manufacturers.
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Transformer DC Winding Resistance Tester
HTZZ-10A / 235
Wuhan Huatian Electric Power Automation Co., Ltd.
Measurement transformer around the group and large power inductor dc resistance ideal equipment.
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Transformers (Murata Power Solutions Products)
Murata transformers are ideally suited to high-frequency designs. The products come in a variety of industry-standard packages and can be used in applications where impedance matching, voltage conversion, isolation and current sensing may be required.
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High DC Primary Current Injection Test Set
PDC15k
PDC15k High DC Primary Current Injection Test Set adopts high-frequency invert principle to realize the high DC current output capability, with very small size and light weight. PDC15k is modular designed with changeable modules and multi-functions local control software.
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High Speed・High Accuracy Eddy Current Type Digital Displacement Sensor
GP-X
Panasonic Industrial Devices Sales Company of America
The inductive displacement transducers of the GP-X Series use eddy current techniques and are particularly noted for their highly accurate measurement at a resolution of 0.02% F.S. with minimal linearity error, a high sampling frequency of 40kHz and low temperature dependence. GP-X Series Sensors are ideally suitable for the highly accurate motion and distance control of metal objects in harsh industrial environments.
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Opto-Isolated Current Loop Signal
4029
SPECTEC Innovative Sensor Solutions
SPECTEC's Model 4029 digital opto-isolated current loop signal conditioner prevents ground loops and interrupts any galvanic signals riding on magnetic speed sensor's output signal.. This signal conditioner converts magnetic, variable reluctance and inductive sensors' sinusoidal signals into a 4-20 mA output suitable for interfacing with process control units, dataloggers, flow controllers, and computers.
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Integrated Transformer Test Van
XD90
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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Current Measurement in a Compact Design
ICD-Series
Isabellenhütte Heusler GmbH & Co. KG
The ICD series is a compact system for current measurement. The ICD-A is suitable for an application in the automotive industry due to its connector, while the ICD-C is more suitable for the design industry. The shunt-based measurement provides for a high level of accuracy and temperature compensation is also incorporated through the internal signal processing. External temperature influences are thus reduced to a minimum.
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Current Measurements Of PWM Or Inverter, AC/DC 5～100A, Φ16mm
CTF-100DC-U48V
MULTI MEASURING INSTRUMENTS Co., Ltd.
*AC/DC 5～100A*For current measurements for PWM or inverter
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Eddy Current Flaw Detectors
EddyView
United Western Technologies Corp
Choose the Eddy Current performance to match your NDT inspection needs!
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AC and DC Current or Voltage Transducers
VT7 AND VT8 Series
The Model VT7 Series dc voltage transducer produces an output which is directly proportional to the input from dc to 10kHz. It functions as a millivolt dc shunt or a high voltage isolator to 1000V
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High-Voltage, High Current I/O Module
Model JI-4516
The JI-4516 module is a versatile, easy-to-use device for adding high-voltage, high-current digital I/O capability to a computer system via a USB connection. The module is comprised of 8, low-side power MOSFET switches, and 8 high-voltage inputs. I/O ground isolation eliminates ground-loops and provides protection from noise and switching transients during high-current load switching. The JI-4516 is available as either a desktop unit or low-cost OEM board.
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Suitable For Current Or Voltage Process Signals
SEM1600VI
The SEM1600VI is a “smart” powered isolator/conditioner that accepts any voltage signal between (-50 and 50) V dc or any current signal between (-50 and 50) mA
