Current Transformer Test
measures insulation, excitation current, turns ratio, winding polarity saturation and/or winding resistance. Current Transformers
See Also: Transformer Test, Transformer Testers, Current Transformer Test Set
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Product
Current Probe
PA-655
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*Max. ±50A DCA*Resolution: ≧5mA*Bandwidth: DC~500KHz*Rise Time: 0.7us*Over Range Function*20mV/A, 200mV/A Range*Adaptor/Battery Input*Separating Design,Convenient Durable
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Product
Voltage And Current Calibrator
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Precision Mastech Enterprises Co.
A precision instrument designed to generate (source) and measure precise electrical signals.
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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
Current And Voltage Transformer Test Set
iCT1
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iCT1 - CT/VT Test Set is the NEW and most advanced portable equipment capable to test current, voltage and combined transformers.With the low voltage method, known as "DC method", iCT1 is able to test Current Transformers with a very high saturation voltage, up to 30 kV, in a complete safety mode. Quick and easy to use tool, iCT1 allows to perform tests in one shot without changing the connection to the CT, thanks to the integrated 5-TAP Switchbox.
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Product
Leakage Current Monitor
LCM500
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The Doble LCM500 Leakage Current Monitor can measure condition while a surge arrester is still in service, measuring the quality of the metal oxide blocks and helping manage the risk of failure.
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Product
Lightning Current Generator
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Shanghai Guantu Technology Co., Ltd.
The lightning wave impulse current generator is an impulse current generator that generates a simulated lightning current waveform . Its working process is as follows: first, the transformer charges the capacitor bank through the silicon pile, when the charging voltage reaches a predetermined value, the spark gap is triggered, and the capacitor is discharged through the total inductance and total resistance of the circuit. When the resistance is greater than or equal to the critical damping value, a unidirectional impulse current wave is generated in the circuit. When the resistance is less than the critical damping value, an oscillating impulse current wave is generated. The magnitude of the impact current amplitude is related to the circuit parameters. When the capacitance value and charging voltage are the same, the smaller the inductance value, the greater the current amplitude. In order to obtain as much current as possible, a pulse capacitor with a small inductance value is usually selected, and the total length of the connecting line should be as short as possible when arranging the main capacitor, so that the total loop inductance value can be reduced as much as possible.
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Product
Current Monitoring, Power Relays
DI Series
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Heavy duty, current monitoring relay for demanding applications. Current activated coil.
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Product
IC & Transformer
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Mornsun Guangzhou Science & Technology
MORNSUN launched the self-designed electronic integrated circuits according to the different product lines, types of the integrated circuit include AC/DC power supply control ICs, DC/DC power supply control ICs, interface ICs, start-up ICs, contactor power saving controller ICs and digital isolator ICs. MORNSUN IC chip can be widely used in industrial equipment, process control, data acquisition system, building automation, smart meter, etc. Adopting MORNSUN's AC/DC transformers and DC/DC transformers, with the use of its control ICs, can achieve wide voltage input flyback power supply design with multiple protection functions and superior EMI performance. We hope that those power transformers along with the integrated circuits & chips electronics can be an ideal fit for your application needs.
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Product
Leakage Current Tester
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Premier's Leakage Current Tester (also known as Hipot Tester) simulates the effect of a person touching exposed metal parts of a product and detects whether or not the leakage current that would flow through the person's body remains below a safe level.
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Product
Eddy Current Testing /ET System
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Xiamen IDEA Electronic Technology Co., Ltd.
Eddy current testing system uses the most advanced digital electronic technology, photovoltaic technology and microprocessor technology. With beautiful design automatic transmission, complete electromechanical integration system, which is the only company that have a complete system of automatic machine.
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Product
Current to Digital
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Analog Devices’ breakthrough current-to-digital converter technology is backed by award winning expertise to help solve your medical, industrial, and security application needs. Our high speed, high resolution ADC modules enable improved CT scanner data acquisition, photodiode sensors and power monitoring, spectroscopy, and high channel count data acquisition systems.
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Product
Clamp type DC Current Sensor／for DC Leakage Current Measurements
DCZCT-110S
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*Compact size, General purpose*DC leakage current measurements
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Product
Split type AC Current Transformer
CTS-200
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*1A output for metering application.*Short circuit switch for secondary output is provided for safe operation.*High accurate transformer for the application of first class meter.*Easy installation by metal fitting.
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Product
Transformer Turns Ratio Tester
CX-BY
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Shenzhen Chuangxin Instruments Co., Ltd.
It is to test voltage ratio, vector, polarity, ratio error of current transformer and voltage transformer.
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Product
DC Leakage Current Monitor
MDLA-100
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MULTI MEASURING INSTRUMENTS Co., Ltd.
This DC Leakage Current Monitor constantly observes leakage current of DC circuit like as PV generation system, etc. and lights up the warning lamp with signal output, when the leakage current exceeds the setting value.
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Product
Transformer Turns Ratio Testers
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Transformer turns ratio testers from TRT series are DV Power instruments mainly designed for the measurement of power transformer turns ratio. Also, they measure transformer excitation current and phase shift. Special tests, such as automatic vector group detection and magnetic balance, can be performed on three-phase transformers and three-phase autotransformers.All models, except TRT03 series, have a built-in true three-phase power source, which is necessary for testing turns ratio of transformers with special configurations, such as phase-shifting, rectifier, arc-furnace, traction transformers, etc.DV Power turns ratio testers can output various test voltages for different applications. From the extremely low test voltage of 1 V AC that enables turns ratio verification of the majority of current transformers, up to the highest test voltage of 500 V AC that provides the most accurate turns ratio testing of power transformers used in power generation and transmission. By using the external booster, test voltage increases up to 5 kV AC in order to successfully test capacitive voltage transformers.All DV Power turns ratio testers have a built-in tap changer control unit. Because of that, it is possible to control the on-load tap changer (OLTC) directly from the device. In order to make the most out of this feature, the instrument and included DV-Win software can be programmed to do everything automatically – running turns ratio tests, changing OLTC tap positions, and saving results. This option significantly facilitates and shortens the turns ratio testing time.TRT turns ratio testers use the same set of cables as three-phase winding ohmmeter & tap changer analyzers from the TWA series. Consequently, it enables one-time cable setup for performing eight tests:turns ratioexcitation currentphase anglemagnetic balancevector group detectionwinding resistanceon-load tap changer DVtestand demagnetization.
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Product
Flexible Rope-Type Current Probe
RCT1A and RCT5A
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These probes have great bandwidth ensuring accurate measurement even with harmonically distorted wave shapes. For all RCT1A/RCT models, a NIST, NAVLAP, NPL (UKAS) factory traceable calibration certificate and certificate of conformance is supplied. UL/CSA approved materials are used throughout. Three phase and single phase flexible AC current sensors (rope sensors) are available for fast installation in confined spaces, eliminating the need for Electrical Supply Shutdown. Available outputs are 1A @ 2.5VA and 5A @ 0.5VA, this means long cable lengths from current sensor to signal conditioner allow these low VA ratings to be used, even when feeder cable to energy meter distances are large (up to 98 feet / 30 meters)
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Product
Telecom Transformers
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Our high-performance telecom transformers support multiple home phone line and power line network applications. These transformers have excellent THD performance, small footprints, and are designed to exceed industry standards. Single, dual, quad, six, octal and twelve transformer numbers are available.
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Current Amplifiers
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In order to achieve an extremely low noise performance very high gains were chosen, while nevertheless minimizing the associated bandwidth reduction.Thus, as a result of our sophisticated development efforts we can offer a professional "High-End" Current Amplifier line. The noise performance of our products surpasses by far that of conventionally designed OpAmp current-to-voltage converters at the corresponding bandwidth.
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Product
Primary & Secondary Current Injection Testing Sets
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Primary current injection kits are used to test and commission Circuit Breakers, Bus Bars, CTs, Relays, MCCs, PCCs etc. These are also used for high current injection and simultaneously measuring voltage drops and hot spots in bus-bar joints, Circuit Breaker Contacts etc.
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Product
DC Pulse Current Capacitor
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Both series can be customized as Low Voltage High Capacitance High Current Capacitors.We can customize Snubber Capacitor as Box type and support other parameters.For 250Vac~900Vac / 400Vdc~1,350Vdc and with higher Current requirement, please refer to our AC/DC Power Capacitors.Different applications can have very different capacitor electrical and mechanical profile requirements.Please feel free to send your application details for a suggestion and quotation.
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Product
Transformer Test Panel/ Setup
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This is a common test panel for distribution/ power transformers of different specifications. The user can perform most of the factory tests, as per the relevant IS standard for the transformers. The panel consists of power analyser, meters for high voltage test, meters for induced voltage test etc, control for all the tests, protection and interlock circuits so that a single panel can be used to conduct a number of tests using only one dimmerstat and the associated devices
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Product
8-Gas On-Line Transformer Gas Analyser
TRANSFIX
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The TRANSFIX is an 8-gas on-line transformer DGA monitoring unit. Using specially developed advanced photo-acoustic detection technology, the TRANSFIX measures all significant fault gases (in ppm) as outlined by international standards as well as moisture in oil (%RH & ppm). The measurement of these gases allows the user to detect and diagnose a complete range of transformer faults.
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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
Current Caliper
KH23101
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Beijing KeHuan Century EMC Technology Co,.LTD
The KH23101 current caliper is a toroidal transformer used to measure EMI current. When measuring, the caliper does not directly touch the electrical conductor or the cable under test. The conductor passing through the caliper window is used as the single-turn primary wire of the transformer, and the secondary is designed to be multi-turn. Use with 50 Ω receiving system (such as EMI electromagnetic interference field strength meter or spectrum analyzer). In order to facilitate installation and rapid measurement of EMI current, it is designed as a caliper that can be opened.
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Product
Current Loop 20 MA Constant Current SI-module With Optical Isolation
MXTTY
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Current loop 20 mA constant current (active, passive) SI-module with optical isolation.
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Product
N2782B AC / DC Current Probe, 50 MHz, 30 Arms
N2782B
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The N2782B current probe is an accurate and reliable solution for measuring AC and DC currents. Using a hybrid technology that includes a Hall effect sensor and an AC current transformer, the probe provides accurate measurement of DC or AC currents up to 30 Arms continuous.
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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
Laser Diode Burn-in Reliability Test System
58604
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The Chroma 58604 is a high density, multi-function, and temperature controlled module for laser diode burn-in and lifetime tests. Each module has up to 256 SMU channels which can source current and measure voltage in various control modes as described below.
