Current and Potential Transformers
current and potential transformer T&M instruments.
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Product
Transformer Performance Tester
JYW6100
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JYW6100 Transformer No-loads and On-loads tester power factor tester is suitable for loss testing of low power factory transformer such as amorphous alloy transformer, with high precision and data loc
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Product
AC Test Transformer
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Shanghai Guantu Technology Co., Ltd.
How the AC test transformer prevents the overvoltage generated by the frequency conversion series resonance test device is a relatively simple problem, but the overvoltage caused by voltage fluctuation is difficult to appear when the overvoltage protection is set. Generally, the overvoltage of the frequency conversion series resonance test device will appear in the frequency sweep stage of the instrument, that is, in the process of finding the resonance point. Those who have used it know that in the process of finding the resonance point of the frequency conversion series resonance test device, the voltage and frequency have a parabola-like linear relationship. By default, the system finds the high voltage, that is, the apex of the parabola as the resonance point.
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Product
Instrument Transformer & Switchgear Testing
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Our stationary and mobile instrument transformer test systems are used to test current and voltage instrument transformers. Among other things, accuracy testing, demagnetization and insulation testing are possible.
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Product
Series Precision Multi-Ratio Current Transformers
PMT25090
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Power Measurement Technologies Inc.
Precision two-stage toroidal current transformers find application as the reference in determining the accuracy of instrumentation current transformers.
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Product
Residual Current Protection
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Solutions to ensure the safety of people and installations against any ground currents. Available with ultra-immunized system as an essential solution to avoid financial losses due to outages caused by inadvertent trips. Specially designed to protect industrial installations in AC networks (type A), installations with both AC and DC components and DC-only installations (type B). Available with RS-485 communications (Modbus RTU) and remote control inputs/outputs.
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Product
Series Precision Fixed-Ratio Current Transformers
PMT25100
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Power Measurement Technologies Inc.
Precision two-stage toroidal current transformers find application as the reference in determining the accuracy of instrumentation current transformers.
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Product
Current Injection Sets
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Built in c based Time Interval Meter measuring from1 millisec to 9999 sec. Panel with easy and clear legends to read. Continuosly variable outputs. Auto Cut-off & output isolated. Self sensing of contacts i.e. NO or NC Potential free star stop signals Available in Portable / Lab type models with metal cover
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Product
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
Automatic Transformer Observation System
ATOS
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Raytech – The World leader in design and manufacturing of high-quality precision measuring instruments and systems, offering flexibility and versatility. Our modular Automatic Transformer Observation System (ATOS) allow you to create a unique and custom solution for any application. ATOS is designed to drastically reduce measuring time and increase test performance, without losing accuracy compared to individual test instruments. With the choice of up to three Multiplexers (primary, secondary, and tertiary), three Winding Resistance Meters, each with three maximum current range options (up to 15A, 50A, or 100A), Turns Ratio, and Integrated power security and safety panel (ISU R), Raytech can create a system with your needs and budget in mind.
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Product
Transformer Turn Ratio Tester
KVBB-II
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KV Hipot Power Test Equipment Co.,Ltd
KVBB-II Transformer turn ratio tester is used to check turn ratio of transformer, tap switch situation, whether transformer interturn is short circuit and transformer can run in parallel or not.
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Product
Combinated Current Clamps
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PeakTech Prüf- und Messtechnik GmbH
Measure small direct and alternating currents up to 2 A with 1 mA resolution. The device measures the current indirectly via the surrounding magnetic field, so it is measured without contact when the clamp jaws enclose the current-carrying conductor (single wire).
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Product
Current Sensing
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voltage-output, current-sensing amplifier family that integrates an internal shunt resistor to enable high-accuracy current measurements at common-mode voltages that can vary from 0 V to 36 V, independent of the supply voltage. The device is a bidirectional, low- or high-side current-shunt monitor that allows an external reference to be used to measure current flowing in both directions through the internal current-sensing resistor sensor. The integration of the precision current-sensing resistor provides calibration equivalent measurement accuracy with ultra-low temperature drift performance and ensures an optimized Kelvin layout for the sensing resistor is always obtained.
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Product
High Current SMU
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Source and Measurement Units (SMUs) are devices that generate voltages or currents and can measure them simultaneously using the integrated measurement units (VMU, CMU).High current SMUs operate as a regulated power source and are able to generate very high output currents as pulses.
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Product
Meters for Current & Voltage
EE301-DCM-xx
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LCD Current Readings:0-80.0 / 40.0 / 20.0. LCD Voltage Readings:0-50.0 / 150.0
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Product
Leakage Current Measurement
CX-2675C3
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Shenzhen Chuangxin Instruments Co., Ltd.
Leakage Current Measurement Output voltage:0~250V (AC/DC)
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Product
Linear Variable Differential Transformers (LVDTs)
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Whilst there are several ways to measure displacement, the Linear Variable Differential Transformer (LVDT) remains a popular transducer in most industrial applications. LVDTs initially were used as a means of taking dimensional readings in laboratories. They gained popularity in a wide variety of industrial monitoring and control applications, and whilst an LVDT is used to measure displacement the technology can be employed within other transducer types.
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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
Transformer Winding Resistance Meters
RMO TT Series
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The Tap Changer Analyzer & Winding Ohmmeter of the RMO-TT series is designed for winding resistance measurement of inductive objects, and for a tap changer analysis. The RMO-TT series is based on the state of the art technology, using the most advanced switch mode technology available today. The RMO-TT instruments are accurate (0,1%), powerful (up to 100 A) and still portable. The Instruments generate a true DC ripple free current with automatically regulated measurement and discharging circuit. RMO-TT instruments can perform a simple, quick and reliable transformer on-load tap changer condition assessment. This series of instruments enable measurements of a winding resistance in every tap position, current ripple values (percentage of a current drop during a tap change) and transition times during the tap changes. Problems with a connection, contacts, and selector/diverter switch operation (tap change with interruption) can be detected with these measurements.
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Product
Transformer Turns Ratio Meter
TTRM 302
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SCOPE introduces state of the art precision three phase Transformer Turns Ratio Meter (TTRM ) designed for field testing as well as factory testing of power transformers, instrument transformers and distribution transformers of all types. Along with turns ratio, this light weight and reliable instrument measures ratio deviation, phase angle deviation, magnetizing current and detects tap-position of single as well as three phase transformers in charged switchyard condition. The instrument has facility to automatically detect vector group of all majority configurations available. The differant AC voltage selection offers high accuracy in measurement.
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Product
Current Probes
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Innovative DC to 5MHz "positional" current probe capable of measuring currents in PCB tracks, component legs etc. without the need to break the connection or surround the conductor.
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Product
Transformer Resistance Testing
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Weshine Electric Manufacturing Co., Ltd
Transformer insulation resistance deterioration is one of the most common causes of transformer failure: a failing transformer is a costly replacement in an electrical system with the potential for a long downtime. If you fail to maintain your transformer with regular insulation resistance testing (as can be carried out by the WESHINE Transformer Ohmmeter (VS-3110 series) of transformer test equipment) then it’s likely to fail before reaching its maximum operating life.
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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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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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Product
Portable Three Phase Transformer
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Supreme Instrument Laboratories
Portable 3 phase double wound transformers both step-up & step-down, natural air cooled construction, housed in well ventilated sheet steel cabinet duly powder coated. All the input and output terminals are brought out and terminated on highly insulated bakelite panels duly marked for easy connection. Necessary carrying handles and castor wheel will be provided for portability.
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Product
Godzilla High Current Probe, 100 Amp
HC375
High Current Probe
Current Rating (Amps): 100Average Probe Resistance (mOhm): 25Test Center (mil): For more details, please contact us.Test Center (mm): For more details, please contact us.Full Travel (mil): 360Full Travel (mm): 9.14Recommended Travel (mil): 250Recommended Travel (mm): 6.35Overall Length (mil): 3,110Overall Length (mm): 78.99
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Product
Transformer Monitoring And AVR
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Power transformer is a basic equipment for the Transmission and Distribution Network and requires the application of powerful Monitoring and Control Systems. RTU Dt set is developed and intended for medium and large oil immersed Power Transformers with On-load Tap Changers (OLTC). The set provides safe, reliable, easy to use and cost effective power transformer condition monitoring and Automatic Voltage Regulation (AVR).
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Product
Differential Transformer Type Extensometers
DT Series
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ISO Class 1 Compliant Differential Transformer Type Extensometers The ISO 6892-1 standard for tensile testing of metallic materials prescribes Class 1 or higher extensometers, and JIS Z2241 prescribes Class 2 or higher extensometers when measuring withstanding pressure. The DT series includes Class 1 compliant differential transformer type extensometers, which can be used to implement test methods compliant with metal tensile test standards.
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Product
Differential Current Management
LINAX PQ series
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All devices from the series/products listed below can be expanded with the "dual-channel residual current detection" add-on module to enable residual current monitoring. By comparing residual current and protective conductor current measurements, you can detect stray currents in your electrical system and initiate appropriate countermeasures.
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Product
Current Probe
PA-629
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*Maximum Current Value: +/- 200ADC, 140A RMS*1mA = 10mA, 100mA (switchable)*Rising Time: 1.2uS*Bandwidth: DC ~ 300kHz*Over Range Indicator*Battery, AC Power Supply Adaptor (free), dual usages
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Product
Transformer Insulation Testing
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Weshine Electric Manufacturing Co., Ltd
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