Voltage Transformer
a type of intrument transformer enabling secondary connected metering.
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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
Three-Phase Transformer Winding Resistance Meters
TWA Advanced Series
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TWA Advanced series is the latest DV Power solution for three-phase transformer winding resistance measurement and tap changer analysis. They are capable of testing six transformer windings with a single cable connection, as well as three-phase automatic transformer demagnetization. It has the option of the automated test mode, where the instrument operates the tap changer without operator input (minimizing the risk of human error) and records winding resistance results based on pre-selected stabilization criteria.The unique DVtest method of tap changer analysis enables checking the moving contacts of on-load tap changers during the transition, measuring the transition time, detecting open circuits, and many other types of faults. It is performed with 0.1 ms sampling rate, together with the measurement of tap changer motor current which detects motor and mechanical issues. A special proprietary algorithm is used for testing tap changers connected through a built-in series (booster) transformer. The DVtest can be performed either on one phase or simultaneously on three phases. It can also be performed together with the winding resistance test in all tap positions.A unique advantage of TWA Advanced instruments is the capability of simultaneously testing the winding resistance of all three phases of a three-phase transformer connected in a YN configuration. This can significantly speed up the testing– for example, it enables the operator to perform 33 measurements instead of 99 on a tap changer with 33 tap positions.TWA500 is equipped with a large 10.1” graphical touch-screen display, while TWA400 has a 7” graphical touch-screen display. Besides making the interface much more user-friendly compared to older winding ohmmeters, it also enables certain test options that were previously available only with DV-Win software. The most important among them are DVtest, tap changer motor current measurement, “Heat Run” test, test templates, and automatic test mode.
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Product
PXI High Voltage Programmable Resistor Module, Connector
40-230-256-HI
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The 40-230-256-HI (PXI) and 42-230-256-HI (PXIe) are programmable resistor modules with 2 channels which can be set between 4.5Ω and 76.8MΩ with 8Ω resolution with maximum voltage of 1.2kV. The 40/42-230 range provides a simple solution for applications requiring voltage handling up to 1kV (9-pin D-type connector) or 1.2kV (22-pin REDEL connector).
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Product
Power Transformer Testing
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HAOMAI Electric Test Equipment Co., Ltd.
Testing products for power transformers.
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Product
Single Phase Transformer Ratio Meter
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*Ideal for VT testing*Bushing Current Transformers (BCTs)*Higher resolution*Excitation current meter
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Product
Standard Voltage 9 Pin D-Type Connectors for Pickering Products
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The connectors below are suitable to use with Pickering cards and modules that utilize a standard voltage 9-pin D-type connector.
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Product
PXI High Voltage Programmable Resistor Module, REDEL Connector
40-230-225-HI
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The 40-230-225-HI (PXI) and 42-230-225-HI (PXIe) are programmable resistor modules with 4 channels which can be set between 3Ω and 13.6kΩ with 4Ω resolution with maximum voltage of 1.2kV. The 40/42-230 range provides a simple solution for applications requiring voltage handling up to 1kV (9-pin D-type connector) or 1.2kV (22-pin REDEL connector).
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Product
16 Channel Precision High Voltage (420VMAX) Isolated Instrument
EX1402
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The VTI Instruments EX1402 adds isolation and high-speed measurement capability to the popular EX1400 Series of instruments, an advanced, full-featured data acquisition family designed to acquire precision data from voltage sensors. The EX1402 delivers accurate and highly repeatable voltage measurements by implementing fully integrated signal conditioning, 24-bit ADC’s, on a per-channel basis.
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Product
sbRIO-9229 , Non-Enclosed, ±60 V, 50 kS/s/ch, 24-Bit, Simultaneous Input, 4-Channel C Series Voltage Input Module
780874-01
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Non-Enclosed, ±60 V, 50 kS/s/ch, 24-Bit, Simultaneous Input, 4-Channel C Series Voltage Input Module - The sbRIO‑9229 performs differential analog input. The sbRIO‑9229 is an effective general-purpose analog module because of its resolution, sample rate, and input range. With channel‑to‑channel isolation, your entire system, including the device under test, is protected from harmful voltage spikes up to the isolation rating. In addition to safety, isolation eliminates measurement errors caused by ground loops because the front end of the module is floating. Non-enclosed modules are designed for OEM applications.
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Product
PXI 10 Channel High Voltage Attenuator
41-660-001
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The 41-660 and 41-661 are high voltage attenuators designed to reduce the high output voltages commonly generated by some types of sensors. This is in order to produce manageable signal levels that can be acquired by typical data acquisition devices in a PXI system.
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Product
LXI High Voltage Switching - 6-Bank, 1-Pole, 8:1 Multiplexer Plugin Module
65-231-909
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The 65-231-909 plug-in module is part of a scalable high voltage multiplexer platform that provides a high voltage switching solution with capability up to 9 kV.
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Product
Voltage Detectors
JSC-88AW
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The JSC-88AW is a very reliable way to know for sure whether or not there is voltage downstream from the switches or breakers during power-offs. It dramatically increases the safety of personnel assigned to maintenance work on electrical equipment powered by three-phase voltage. As long as voltage is present downstream of the breakers, one or more (LEDs) of the JSC-88AW will stay lit. A simple visual inspection tells you whether the electrical system is in “Zero Energy” mode. In addition, this new device has been improved to enable resistance to voltage spikes (transients).
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Product
6-Ch Voltage Analog Input EtherCAT Slice I/O Module
AMAX-5017VW
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6 differential input channels ideal for multi-sensor systemsFlexible voltage input ranges for various sensor signalsHigh resolution (16-bit ADC) beneficial for precision measurementHigh accuracy (±0.1% FSR) ensures data integrityHigh electrical isolation for reliable signal acquisitionLED indicators for easy status monitoring
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Product
PXI High Voltage Programmable Resistor Module, REDEL Connector
40-230-232-HI
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The 40-230-232-HI (PXI) and 42-230-232-HI (PXIe) are programmable resistor modules with 2 channels which can be set between 3.5Ω and 26.7kΩ with 0.5Ω resolution with maximum voltage of 1.2kV. The 40/42-230 range provides a simple solution for applications requiring voltage handling up to 1kV (9-pin D-type connector) or 1.2kV (22-pin REDEL connector).
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Product
LXI High Voltage Switching - 4-Bank, 1-Pole, 12:1 Multiplexer Plugin Module
65-231-706-HI
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The 65-231-706-HI plug-in module is part of a scalable high voltage multiplexer platform that provides a high voltage switching solution with capability up to 7 kV. Multiplexers are created by populating the 65-200-002 scalable chassis with multiplexer plug-in modules that provide access to the Channel and Common signals on 51-pin front panel connectors.
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Product
PXIe High Voltage Programmable Resistor Module, REDEL Connector
42-230-330-HI
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The 40-230-330-HI (PXI) and 42-230-330-HI (PXIe) are programmable resistor modules with 1 channel which can be set between 3.5Ω and 6.97kΩ with 0.125Ω resolution with maximum voltage of 1.2kV. The 40/42-230 range provides a simple solution for applications requiring voltage handling up to 1kV (9-pin D-type connector) or 1.2kV (22-pin REDEL connector).
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Product
PXIe High Voltage Programmable Resistor Module, REDEL Connector
42-230-220-HI
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The 40-230-220-HI (PXI) and 42-230-220-HI (PXIe) are programmable resistor modules with 4 channels which can be set between 3Ω and 472Ω with 0.125Ω resolution with maximum voltage of 1.2kV. The 40/42-230 range provides a simple solution for applications requiring voltage handling up to 1kV (9-pin D-type connector) or 1.2kV (22-pin REDEL connector).
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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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Product
PXIe High Voltage Programmable Resistor Module, REDEL Connector
42-230-230-HI
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The 40-230-230-HI (PXI) and 42-230-230-HI (PXIe) are programmable resistor modules with 2 channels which can be set between 3.5Ω and 6.97kΩ with 0.125Ω resolution with maximum voltage of 1.2kV. The 40/42-230 range provides a simple solution for applications requiring voltage handling up to 1kV (9-pin D-type connector) or 1.2kV (22-pin REDEL connector).
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Product
20 Amp Current Transformer Burden Test Set
1044A
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Due to overwhelming demand, TESCO is pleased to re-introduce the 1044A 20 Amp Current Transformer Burden Test Set. This light weight, hand held unit is a simple and inexpensive means whereby a current transformer installation may be quickly checked for many sources of trouble. The 1044A provides utilities a less expensive and more traditional option for checking larger services for potential meter circuit related issues.
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Product
PXI/PXIe High Voltage Multiplexer, Single 48-Channel, 1-Pole
40-321-109-HI
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The 40-321-109-HI (PXI) and 42-321-109-HI (PXIe) are single 48-channel 1-pole high voltage multiplexers capable of hot or cold switching up to 1000 V peak. They are also available in a range of bank sizes with 1 or 2 poles and channel counts between 4 and 48. High quality reed relays are used throughout.
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Product
100kV Withstanding Voltage Tester
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AllWin Instrument Science and Technology Co., Ltd.
1. Leakage current at real-time detection2. Alarm value can be preset freely3. Audio alarm, High-voltage breakdown protection
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Product
High Voltage Insulating Diagnosis Systems
DAC-6017
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It can measure and diagnose the insulating characteristic of winding coils of high voltage electric motor, generator, and etc.It also makes possible to build in-vehicle type or stationary type in accordance with the application.
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Product
Battery Voltage Supervisor
BVS
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DV Power battery voltage supervisor – BVS, is an accurate battery voltage monitoring system that monitors the state of health of battery systems. It records important battery parameters such as battery voltage, inter-cell connection voltage, and ambient temperature. Because of that, it can be a support tool for capacity testing.The BVS voltage supervisor is an integrated system consisting of:BVS Control Unit (BVS-CU)Cell Voltage Modules (CVM)String Voltage Module (SVM) (optional)String Current Module (SCM) (optional)It is an ideal testing tool for maintenance, troubleshooting and performance tests on individual stationary batteries and battery packs in critical backup energy solutions.BVS-CU provides ambient temperature measurements on multiple locations (4 temperature channels). Overall string voltage and string current monitoring can be achieved by using an optional string voltage module (SVM) and string current module (SCM).There are two types of DV Power battery voltage supervisors:BVS – One cell voltage module measures 1 cellBVS-4 – One cell voltage module measures 4 cellsCVM modules detect cells that fail a discharge test based on monitored voltage values. As a result of that, these cells can be safely removed from the battery string.Data acquisition and analysis of data collected from the modules are available in the DV-B Win application software suite. They provide data viewing, tracking, and generation of comprehensive reports.
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Product
Voltage Variable Attenuators
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Voltage variable attenuators (VVAs) that offer up to 60 dB of attenuation across a broad range of frequencies from 400 MHz to 18 GHz. These voltage variable attenuators are frequently used in applications such as electronic warfare, instrumentation, point-to-point and point-to-multipoint radios, fiber optic and broadband telecom, microwave radio and VSAT, military radios, radar, ECM, SATCOM and sensors, and R&D.
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Product
Optical Voltage Probe
400-02
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Srico’s optical voltage probe uses advanced, proprietary optical chip technology to achieve precise, interference-free measurement. Our sensor and optical fibers are made of dielectric materials. This facilitates a high degree of isolation between the voltage test point and the instrumentation system ⎯ at a safe distance of 100 meters and more. This system senses, measures, and transmits electrical data very accurately.
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Product
High Voltage Testers
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HV Test, which is also known as Hipot Test – short form of high potential – is used to test the insulation quality of the auxiliary circuit of circuit breakers. The HV Test is useful in finding damaged insulation, stray conductive materials around the conductors, and problems due to terminal spacing and tolerance errors in cables.
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Product
Non-Contact Voltage Tester
1LAC II
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The Fluke 1LAC II Non-Contact Voltage Tester is easy to use – just touch the tip to a terminal strip, outlet, or supply cord. When the tip glows red and the unit beeps, you know there's voltage present. Electricians, maintenance, service, safety personnel, and homeowners can quickly test for energized circuits in the workplace or at home.
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Product
Clamp type AC Current Sensor／with DC Voltage Output
RCT-18
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MULTI MEASURING INSTRUMENTS Co., Ltd.
Leakage current measurements with DCV output for recorder. AC 0.1mA～100mA.
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Product
Non-Contact Voltage Detector
VOLTCHEK
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The VOLTCHEK is a variable non-contact voltage detector, A proximity device which detects the presence of an alternating electric or electromagnetic field. It is used by industry professionals for live or dead voltage determination of outdoor overhead or underground at URD test points. Firstly as a proximity device to determine live or dead situations and then as a touch device to verify the source has physically reached the zero AC field. This is the only equipment capable of testing all voltage from AC 415V to 765kV from a distance, beyond arcing zone.
