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Product
Bobbin Winding Coil Turns Tester
SS108A series
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Bobbin winding coil testers are used to test various coil of turns. Such as: generator winding turns, transformer winding turns, motor winding turns, inductor winding turns, contactor winding turns, relay winding turns, sparking winding turns, ignition winding turns, speaker voice coil, etc.
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Product
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
Winding Resistance Meter
TRM 25
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SCOPE introduces 25 A state of the art precision winding resistance meter, specially designed for field testing as well as factory testing of large transformers up to 500 MVA. Winding resistance value of transformer and rotating machine are directly displayed on 5.7” TFT display. TRM 25 is designed to work in live EHV switchyard conditions, ensuring operator’s safety and repeatability of results. Maintenance time saving is ensured by one time connection to transformer with simultaneous resistance measurement of three / six windings, measurement of resistances of all taps with automated tap change and demagnetization facility. The meter is protected against the back-EMF offered by large inductive windings.
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Product
Winding Resistance Meter
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* Selectable four resistance ranges.* 4 1/2 digits LED display* High measurement Current (10A)* True four Technique elimanates lead resistance errors Systems* Fully protected against overloads* Proven design* Computer connectivity through RS 232
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Product
Transformer Winding Resistance Meters
RMO TW Series
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The RMO-TW instrument can perform a simple, fast and reliable verification of a transformer on-load tap changer. This instrument allows measurements of a winding resistance at each tapping position of an on-load tap changer without discharging between tests. Problems with OLTC switching, such as interruption, can be detected with these measurements. The results are displayed on a backlit LCD screen.
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Product
Tap Changer Analyzers & Winding Ohmmeters
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Winding resistance test of inductive test objects, such as power transformers, is one of the most effective non-intrusive ways of checking its condition. Due to their advanced design, DV Power winding resistance meters provide high test currents (up to 100 A DC) and high accuracy (up to 0.1%) within light and portable test instruments. In addition to winding resistance measurement, it is also possible to perform simple, quick and reliable transformer on-load tap changer condition assessment by recording the test current during tap changer operation, also known as DVtest. Because of that, problems with a tap changer connection, contacts, and switching procedure can be detected.DV Power winding ohmmeters consist of single-phase RMO-T and three-phase TWA series. Models from the TWA series are designed for six-winding resistance measurement of power and distribution transformers, with only one single-step cable setup. As a result of reducing the total test time, it enables significant saving of time and money.Typical application areas of these instruments are high-voltage substations and industrial environments. They are intended to measure the resistance of:Transformer windingsOn-load tap changersGeneratorsElectrical motorsHigh-current bus bar jointsCable splicesWelding joints
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Product
Winding Resistance Tester
JYR20S/10S
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DC winding resistance testing is regarded as another essential routine screening tool. It indicates problems such as loose, defective or incorrect connections, which cause enough transformer failures each year to be regarded as a failure category of its own.
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Product
TRANSFORMER WINDING RESISTANCE METER
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International Biological Laboratories
This Test set is suitable to measure winding resistance of transformers, single or 3-phase, star or delta connected upto several MVA.Two independent displays read the resistance of both primary & secondary windings simultaneously. However, primary or secondary winding can also be measured separately.
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Product
Transformer Winding Resistance Meters
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Vanguard Instruments Company, Inc.
The TRM-40 is Vanguard Instruments’ third generation transformer winding resistance meter. The TRM-40 is designed specifically to measure DC resistance values of transformer windings, rotating machine windings, or any dc resistance of an inductive device.
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Product
Direct Winding Transformer Monitors
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Real time comparison of calculated and direct winding temperatures
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Product
Transformer Winding Resistance Testers / TRT ? 2
TRT-2
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UDEYRAJ ELECTRICALS PRIVATE LIMITED
Fast measurement: Test current 0.02A to 2A DC, Digital display of resistance and test current.
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Product
Three-Phase Transformer Winding Resistance Meters
TWA Standard Series
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When it comes to winding resistance measurement on three-phase power transformers and autotransformers, TWA Standard series offers some of the most technically advanced instruments with LCD display in the market. Both models are capable of testing six transformer windings with a one-time cable connection, as well as three-phase automatic transformer demagnetization. The stored magnetic energy is safely automatically discharged at the end of the test. The built-in tap changer control unit enables automated test mode, where the instrument operates the tap changer without operator input and records winding resistance results based on pre-selected stabilization criteria. This option makes the operator’s job significantly easier.Both models can output test currents from 5 mA to 25 A DC for the purpose of winding resistance measurement. TWA40D has a special test mode for checking the synchronization of on-load tap changers with three phases simultaneously tested in parallel, in which the total test current can rise to up to 40 A DC.TWA40D has additional advantages when it comes to non-intrusive tap changer analysis. The unique DVtest method 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, simultaneously with the measurement of tap changer motor current which helps with the detection of 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 on three phases simultaneously. It can also be performed as an additional test simultaneously with the winding resistance test in all tap positions.An additional unique advantage of TWA40D 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 shorten the total testing time – for example, it enables the operator to perform 33 measurements instead of 99 on a tap changer with 33 tap positions.The test leads for TWA three-phase transformer winding ohmmeters are interchangeable with the TRT turns ratio testers, which means that both sets of tests can be performed with a single test lead connection to the power transformer terminals.
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Product
Winding Resistance Meter 50Amps, 2 Channels Rack
WR50-12R
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Raytech Digital Winding Resistance meter WR50-12R is the enhanced version winding resistance system with a most advanced demagnetizing circuit as a rack version. It is designed for high degree of accuracy for the measurement of very low resistance of any inductive loads.
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Product
Transformer Winding Resistance Tester
KRI 9310
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KRI 9310 adopt Kelvin four-wire testing method, which effectively eliminates the influence of the resistance of the test line on the test results. It can be able to increases the current to 10A by which can test extremely low resistance to 0.01 Ω(such as amorphous alloy, Copper-nickel, nickel-chromium-iron, iron-chromium-aluminum etc). For the tested objects with high resistance value (CT/PT), the instrument can extend the range to 20 kΩ,so the wide resistance test range enables KRI9310 can cover 80% of the power transformer products on the market and switchgear bus-bar cable etc. The power of the tester use the built-in rechargeable lithium battery that can test hundreds of transformers by one time charging.
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Product
WINDING COIL TURNS TESTER
VE201R
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Winding Turns Tester for Counting Measuring Number of Turns for Air Core Coils, Bobbin Coils or Solenoid Coils. Can Measure : Turns along with Winding Polarity and DC Resistance.Turns Measurement : 1 Turns to 80,000 Turns
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Product
Portable Winding Resistance Tester
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1. Handheld winding resistance meter2. Conversion function for standard temperature resistance.3. 500 test data can be saved and download by flash disk.4. Temperature testing function.
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Product
Single-Phase Transformer Winding Resistance Meters
RMO-TW Series
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RMO-TW series is perfect for winding resistance measurements of inductive objects. It is ideal for testing transformer windings (power transformers, distribution, autotransformers) and for on-load tap changer verification. In addition, any RMO-TW transformer ohmmeter & tap changer analyzer can also perform transformer demagnetization.The series contains 4 models, with maximal test currents from 10 A (RMO10TW) to 50 A (RMO50TW). They are fitted in a portable and lightweight metal housing.All transformer ohmmeters from RMO-TW series generate a true DC ripple-free current with automatically regulated measurement and discharging circuit. The injection of current and discharge of energy from the test object are automatically regulated.Three independent channels enable testing of three windings in series. Consequently, this enables measurements of winding resistance in every tap position of an on-load tap changer without discharging between the tests.DV-Win software enables control and observation of the test process, as well as saving and analyzing the results on a PC. It provides a test report, arranged in a selectable form as an Excel spreadsheet, PDF, Word, or ASCII format. Additionally, DV-Win measures and calculates the OLTC transition time, the ripple and the winding resistance for each tap changing operation. The software can also perform the calculations necessary for the “Heat Run” test. Finally, a user can export all results in the form of a report.
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Product
Current Transformer Tester
HTCT-300
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Full-featured, can not only satisfy various CT (eg: protection, measurement and TP category) but also PT type electromagnetic unit for its excitation characteristics (ie voltage current characteristics), ratio, polarity, secondary winding resistance, secondary load, ratio deviation, angle deviation and other test requirements.
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Product
Winding Resistance Meter 15Amps, 2 Channels Rack
WR14R
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Raytech Digital Winding Resistance meter WR14 R is the rack mount version of the WR14. They are designed for high degree of accuracy for the measurement of very low resistance of any inductive loads.
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Product
Diab Compiler
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For over 30 years, Wind River Diab Compiler has been helping developers create safety-critical applications in the automotive, industrial, medical, and aerospace industries. Diab Compiler can help software teams boost application performance, reduce memory footprint, and produce high-quality, standards-compliant object code for embedded systems.
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Product
Surge Tester
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Qingdao AIP Intelligent Instruments Co., Ltd
Surge tester able to test various coils, motor, stator winding, relay/contactor coil, electric magnetic valve coil etc. and can be applied for maintenance, production line, lab and QC etc. Extension: single surge test or multiple tests options.Large storage: up to 1000 test groups can be established.Automatic determine: manual or auto test mode options and test results would be determined automatically.Support both touch screen and numeric keyboard operating.Data analysis: data can be exported in CSV format by USB flash drive.Surge determine items: area, area difference, corona, and phase.100MHz sampling frequency.3KV and 5KV voltage options.Voltage closed loop feedback ensures test precision.User permission management.Support MES connection (manufacturing execution system).
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Product
Environmental Noise Monitors
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Noise is one of the most complained about aspects of the environment, as not only does it have the potential to affect quality of life, it can also be difficult to monitor and therefore control. This type of noise is generally called environmental noise. There are many man-made sources of environmental noise, such as wind turbines, industrial sites, roads and traffic etc. If you are looking for equipment to measure noise in the workplace, look at sound level meters.
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Product
Micro-ohmmeters
MMR-650
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Designed to measure very low resistances of both resistive and inductive types of objects, including amorphous core transformers. This product is made to be used in power plants, railways and maintenance companies, to measure welded and soldered connections, equipotential bondings, earthing conductors, contacts, bolted connections, windings of motors and power transformers and other resistive and inductive objects. MMR-650 can be also utilized on a production lines (eg. at the final production control stage). An innovative combination of a high-performance measuring device with a modern user interface and advanced data management system. Wireless data transmission, enhanced system of 2D codes and ability to print labels to identify test items, all contribute to bringing new quality of work and allow the user to perform a wide range of measurements.
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Product
Surge Tester (Impulse Winding Tester)
SS6815 / SS6815F
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Surge testers (impulse winding tester) is used for testing and check the insulation grade of turns between turns, insulation grade of layers between layers, insulation grade of windings between turns. It is used widely for transformer, current sensor, voltage sensor, relay, contactor, inductor, motor, generator, valve coil, voice coil, etc.
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Product
SF000/B Laser Rangefinder – 50 M
28056
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The Lightware SF000/B is an ultra-small and light open-frame LIDAR laser rangefinder designed for size and weight constraint applications. Using a time-of-flight system to make very fast, accurate distance and speed measurements. Accuracy is not affected by the color or texture of the surface, nor the angle of incidence of the laser beam. The SF000 is virtually immune to background light, wind and noise, making it an ideal sensor to detect unexpected obstacles.
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Product
Wind Tunnels
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Omega's Wind Tunnels come in benchtop or floor standing models for any research, manufacturing, or quality control application. All Wind Tunnels are manufactured in The USA.
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Product
Handheld Wind Meter
E9350
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Stationary wind meters have not always been available at all sites where they are needed, such as sites for flying model aircraft, para-gliding, sailing, surfing and many other leisure activities. In addition to the excellent portability provided by its compact design and the innovative “packaging” of the wind wheel, the new ELV handheld wind meter permits not only determination of the wind strength, but also the complex assessment of the weather situation at the site.
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Product
Green Energy Testing
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MET is a pioneer in the testing and certification of energy efficient and alternative energy products, such as solar panels, wind generators, and inverters.
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Product
Motor Stator Tester
DZ900S
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Shanghai Aoboor Electric Co., Ltd.
Test objects include stators for single-phase AC motors. three-phase AC motors, servo motors, stepper motors, brushless motors series excitaion motors, hub motors, shaded pole motors as well asspecial winding stators.





























