Current and Potential Transformers
current and potential transformer T&M instruments.
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Precision High Current Resistors/Shunts
Measurements International Ltd.
The precision high current shunts are a series of High Current Resistors ranging from 1 A to 3000 A with optional air moving fans and resistance values from ohms to micro-ohm.
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Compact Prewired Current Transformers
Contrel Elettronica s.r.l. Company
Current transformers are essential components designed for use with the broad range of energy monitoring products.
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T3RC Rogowski Coil Current Probes
T3RC Series
Teledyne Test Tools Rogowski Current probes offer a broad range of products covering a wide frequency span and current measurement ranges for maximum application coverage whilst being easy to use in difficult to reach parts of the circuit.
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Primary Current Injection Testers
Primary Current Injection Tester is designed for testing protective relay and circuit breakers and also testing the turns ratio of current transformers at high variable currents. A test current is injected into the primary side of a system to determine how the system behaves at particular levels of current. This test makes it possible to determine whether the relay will trip and how long the current needs to flow before the trip is initiated.
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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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Multiplexer For Transformer Testing
MUX-R
Raytech Multiplexer MUX R is designed to drastically reduce cabling time and increase test performance. It is made to be used with Raytech Winding Resistance and Turns Ratio Meters. Any MUX R configuration can be easily controlled by a Winding Resistance Meter touch panel or by remote.
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Secondary Current Injection Test Sets
Our range of units covers applications up to 200A and includes single phase and three phase units with applications for testing and timing of IDMT relays, thermal overloads, MCB’s and auto-reclosers.
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Portable Single Phase Transformer
Supreme Instrument Laboratories
Portable single phase double wound transformers both step-up and 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.
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Iron Core Current Limiting Reactors
Current Limiting Reactor (CLR) is one of the most effective short circuit current limiting devices. It reduces stresses on busses, insulators, circuit breakers and other high voltage devices. Use of CLR is the most practical and economical approach at current limiting.
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Clamp Meter AC Current 1999 Counts
VA310 VA310C
Shanghai Yi Hua V&A Instrument Co., Ltd. CO.,LTD
Diode Test Back Light Continuity Buzzer.
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Current Tester
MIG1248
The MIG1248 is a current generator with wave shape 8/20. Maximum impulse current is up to 48kA supported by a 12kV impulse voltage making the MIg1248 ideal for testing large varistors. An intergrated test cabinet can accomodate test components up to 5cm cube.
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Clamp type AC Current Sensor／for Load Current Measurements(CT Series)
CT-33
MULTI MEASURING INSTRUMENTS Co., Ltd.
*Compact size*AC 1A～200A*Current measurements of feeder
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Current Data Logger with USB VA601-A2 0-600A
VA601-A110
Shanghai Yi Hua V&A Instrument Co., Ltd. CO.,LTD
Multifunction data logger with K J PT type current .voltage : K.J . PT100. PT1000. mADC. AAC. VDC.VAC.
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Quasi Square Wave Constant Voltage Transformers
Osborne Quasi Square Wave Constant Voltage Transformers are used to regulate output voltages for applications that have varying input voltages. When used with a rectifier conversion circuit, these units provide an elegant design approach to voltage regulation. Osborne achieves this innovative approach by partnering the constant voltage transformer with an auxiliary resonant capacitor winding. The result is a unique (though time honored) technology that offers reliability, performance, and cost advantages over other styles of voltage regulation.
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Transformer Winding Resistance Meters
RMO TT Series
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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DC Bias Current Source
FD1772B
• Constant DC output 0-6A• Auto or manual current sweep output• 5 current range output• Output voltage range: 0-11.5V• Current accuracy ± (1%reading + 2digit)
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Rogowski AC Current Probe,30 MHz, 600 A
N7041A
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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Automatic Instrument Transformer Test Set
*ARM 9 processor controlled measurements*Measures total burden connected to test sample*Internal data storage facility upto 1 lakh readings*Digital display of test results on 800 x 480 TFT color display.*Latest IEC 61869 / ANSI C57.13-2008 / IS-2705 standards incorporated*VGA Port to interface with bigger display / monitor*Both Voltage & Current Transformer testing with one test set*5 and 1 Amp CT testing using either 5 or 1 Amp standard CT*Identifies ANSI, IEC, IS-P, IS-PR, BS, BS-S, IEC-S, IS, IS-S, AS, AS-M, AS-ME standards for CT & VT*USB memory storage*Available in three versions: AITTS Plus , ACTTS Plus & AVTTS Plus
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Inrush Current Generators for Zno Production Line
Shanghai Guantu Technology Co., Ltd.
Inrush Current Generator Standard: IEC61008, IEC61009, I61051/61643, ANSI C62.31, C62.33, C62.35, TU K20, K21, K44, K45, UL943Inrush Current Generator Features1. LCD screen display, built-in computer control, man-machine dialogue, easy to operate.2. Program-controlled high-voltage power supply, high voltage stability and precision3. Imported non-inductive high-power resistors are used to ensure the consistency of surge waveforms4. The main switch adopts electronic switch discharge mode, and the output polarity is automatically switched
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Transformer Polarity Checker
865
This instrument is used to check the correctness of polarity markings on transformers. In operation, the two leads carrying the test current are connected to one of the transformer windings. The other two leads from the indicating meter are connected to the other winding.
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Current Data Logger 0-24mA
VA601-A125
Shanghai Yi Hua V&A Instrument Co., Ltd. CO.,LTD
Multi-function record meter is a new record meter designed for the actual demand of various industrial site, which integr.
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4-20mA Current Loop USB Data Logger
EL-USB-4
This data logger measures and stores up to 32,000 current loop readings over flashing red and green LEDs. The data logger features a pair of screw terminals and is supplied complete with a a 4-20mA d.c. measurement range. The user can easily set up the logging rate and start time, and download the stored data by plugging the module straight into a PCs USB port and running the purpose designed software under Windows 2000, XP or Vista
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Transformer Resistance Testing
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 Megger Transformer Ohmmeter (MTO) series of transformer test equipment) then it’s likely to fail before reaching its maximum operating life.
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18 Inch Universal Flex Current Probe Accessory
FLIR TA74
The FLIR TA74 adds capabilities, simplifies challenges, and gives you the best readings with your existing meter. The narrow, 18-inch long flexible coil clamp and locking mechanism allows you take measurements in tight or awkward spots – ideal for multiple conductor measurements, double-wrap requirements, and deeper access. The connection is a standard banana plug and the output is a voltage signal, so it’s compatible with most DMMs and clamp meters, regardless of brand.
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Transformer Tester
MOTOMEA Distribution Transformer Test Systems: Routine Testing for Production (EOL) and Quality Assurance (QA). Type Testing at Laboratory (R&D)
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Automatic Transformer Oil Test Set With Printer
Oil Test is an equipment designed to test the dielectric strength of Insulating Oils as per relevant specifications vis. IS 6972. It is a useful equipment for Transformer / Switch Gear manufacturing units. Oil fettering agencies, repair shop and electrical maintenance departments.
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Current & Voltage Sources for Calibration of Measuring Systems and Sensors
ChenYang Technologies GmbH & Co. KG
*DC/AC Current: 0-60A *DC/AC voltage: 0-1000V frequency 50Hz, 60Hz, 400Hz, 1kHz
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Automatic Voltage Transformer Comparator
KATC-V2
Knopp’s KATC-V2 is a highly accurate state-of-the-art voltage transformer comparator that is compatible with all older generation Knopp comparators, and is designed to be a direct, plug-in replacement with additional test set cables to fit in the existing Knopp Voltage Transformer Test Systems.
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Integrated Current Sensors
HMSR series
The HMSR is a new generation of high insulated Integrated Current Sensor from LEM. These product family provides a robust, compact and very accurate solution for measuring DC and AC currents in all highly demanding, switching power applications for commercial, industrial. HMSR is a micro core based open loop sensor with a reinforced insulation and overcurrent detections (user configurable and factory set). These features make the device suitable for high voltage applications requiring high precision and strong immunity against external field. The primary conductor (pins 1 and 8) has very low electrical resistance and dedicated pads d
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Control Cabinet for Testing Transformer in Power Test Project
XC / 595
Wuhan Huatian Electric Power Automation Co., Ltd.
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