Winding Resistance
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Transformer DC Winding Resistance Tester
HTZZ-100A / 248
Wuhan Huatian Electric Power Automation Co., Ltd.
Applicable for transformer to submit the dc resistance testproject around group in pick up and overhaul project.
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Passive Component ATS
Test and packing speeds from 80ppm to1,800ppmStandard functions - Inductance/quality factor test - Winding resistance test - Polarity testOptional functions - Layer short test - Insulation resistance test - Bias current testCircular vibrating plate design feeds inductors steadily and rapidlyIndex disc design eliminates dropped inductorsFour-wire measurement test socket designAutomatic discharge mechanism when feeding errors occurEach test station has an independent NG (No Good) product collection boxTest without packaging function provided, good products gathered in bulk collection boxExclusive data collection software designed for monitoring product quality in real timeReserved stations for number spraying and automatic optical inspectionSwitchable Chinese/English/Japanese operating interfaceEquipment is fast, stable and safe
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Current Transformer Tester
HTCT-300
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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Transformer Winding Resistance Meters
RMO TD Series
The RMO-TD Series On-Load Tap & Winding Resistance Analyzer is designed for the measurement of winding resistance of inductive elements, and for tap changer analysis. The RMO-TD series is based on the latest technology, using the most advanced switching technology available today. The RMO-TD series is accurate (0.1%), powerful (up to 60 A) and lightweight. It generates true, ripple-free DC current with automatic metering control and a discharge circuit.
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Electrical Measurement Equipment
Portable equipment designed for maintenance and commissioning of substations and power plants. Low resistance micro ohmmeters, digital timers, windings resistance, contact resistance, circuit breaker timing and motion, phase angle and frequency measurements.
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Transformer Demagnetization Tester
Weshine Electric Manufacturing Co., Ltd
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.
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DC Resistance Tester
GDZRS-20A
GDZRS series Winding DC resistance tester is optimal designed for measuring three phase winding DC resistance of big capacity transformer. It can test three phase winding DC resistances at the same time
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Cable Electric Resistance Tester
MR 270 C-A
The MR270C-A is specially designed for electric resistance measurements in cable industry applications and inductive loads (transformers, motors). It is perfectly fit both for measuring the meter resistance in connection with a corresponding resistance measurement holding device or for final acceptance control of power cable reels. In the case of cable reels, which often have a cable length of several kilometers, both the compensation of the inductive component and the ability to perform measurements in the presence of high noise levels are important. This also applies to the winding resistance of transformers and motors.
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Winding Resistance Meter 50Amps, 3 Channels
WR50-13
Raytech Digital Winding Resistance meter WR50-13 is the enhanced version winding resistance system with a most advanced demagnetizing circuit. It is designed for high degree of accuracy for the measurement of very low resistance of any inductive loads.
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Automatic Transformer Observation System
ATOS
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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Transformer DC Winding Resistance Tester
HTZZ-20A / 240
Wuhan Huatian Electric Power Automation Co., Ltd.
Measurement transformer around the group and large power inductor dc resistance ideal equipment.
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Transformer Winding Resistance Tester
KRI 9310
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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Resistance Measuring Equipment
measure coil winding resistance of motors, transformers, etc, under energizing AC voltage. The direct reading is possible with 4-wire measurement method, and temperature of specimens is immediately calculated from measured resistance values and displayed. Ambient temperature is automatically taken in by connecting an option sensor Model DAC-PT-100.
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Motor/Generator Test Equipment
Winding ohmmeters RMO-M series measure winding resistance of inductive test objects such as electrical motors and generators. Motor test or generator test of winding resistance is especially important for early-stage failure detection.RMO-M series instruments generate true DC ripple-free current with automatically regulated measurement and discharge process. Even more, test instruments are portable and enclosed in a metal casing.Applications supported by DV Power motor/generator test equipment include:Winding resistance measurement of generators and electrical motorsResistance measurement of high-current bus bar jointsResistance measurement of cable splicesAll of the above-mentioned measurements are performed with the highest accuracy. The advanced DV-Win PC software enables collecting both numerical and graphical results. These features provide an easier and more efficient analysis. After the test, a DV-Win software generates a test report a single click. Finally, a user can easily customize the report and save it in different formats, such as XLS and PDF.
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Transformer Winding Resistance Testers / TRT ? 27
TRT-27 series
UDEYRAJ ELECTRICALS PRIVATE LIMITED
Fast measurement: Test current 2.5A to 20A, Digital display of resistance and test current.
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Solar Cells
Using high-efficiency solar panels made of silicon solar cells, the conversion rate as high as 16%, and attenuation, good reliability, long life. Frame using a high-quality anodized aluminum edge, high mechanical strength, ensuring a high level of wind resistance and anti-riot performance, can be adapted to a variety of complex and harsh climatic conditions used.
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Wind Meters
According to the type of application, wind meters are made as hot wire wind-meters or pocket weather wind-meters, all of these wind-meters can measure air velocity and air pressure. Wind meters for the measurement of air velocity and air pressure. The measurement results can be stored in memory of the device (depending on the model). There are a lot of different instruments available in our stores. These wind meters are ideal for taking quick or constant measurements. Wind meters for measuring air velocity and volume flow are available here. The pocket-sized wind meters are implemented as hot-wire wind meters, vane wind meters, cup wind meters or portable, waterproof wind meters depending on the particular application.
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Wind Sensor
FT722
Specifically designed for wind turbine control, the FT722 reads wind speeds from 0-50m/s. Its inovative design incorperates a series of "turbulators" (patient pending) which condition the air flow. With updated software, and calibration in our new state-of-the-art wind tunnel, the FT722 delivers our highest levels of accuracy in wind speed, wind direction and accoustic temperature measurement.
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Wind Turbine Condition Monitoring
It has also become increasingly apparent in recent years that the wind turbine industry has recognised the importance of condition-based monitoring, especially for offshore wind turbines, where access is often limited.To increase reliability and minimise down time, many wind turbine manufacturers, owners and operators are turning to condition-based monitoring systems, aimed at predicting wind turbine maintenance issues, so that operators can quickly and effectively carry out predictive maintenance, repairs and replacements of components when needed, without the need for costly routine maintenance checks and visits. As a result, a condition monitoring system increases operational time, improves site performance and reduces maintenance costs for wind turbines, especially offshore ones.
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AUTOMATIC WINDING TEST SYSTEM
VE9036SU
6 CHANNEL Microprocessor based Automatic Test System for Automobile Coils, Magnetos, Alternator, Motor Winding. Can Test : Impulse Winding Tester (IW), AC/DC HiPot, Insulation Resistance (IR), Inductance (L), DC Resistance (DCR)
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Resistivity Meter
Resistivity meterRSM-500 is used for measuring the volume resistivity of transformer oil and other electrical insulating liquids. • Auto ranged from 109 to 1015 ohm cm • Test voltages: internally generated +500V DC
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Earth Resistance & Resistivity Meter (for 50Hz mains)
MRU-120
* earth resistance measurment with 3-pole,4-pole method, * earth resistance measurement without disconnecting measured earths (using clamp), * continuity of equipotential bondings and protecting conductors * two clamps earth resistance measurement without auxiliary test probs, * earth resistivity measurement,
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Resistance Bridges
Provides the best in measurement uncertainties for Direct Current Comparator (DCC) Resistance Bridges. Unique innovations in 6622A design and modularity means users no longer have to decide what Bridge satisfies current requirements as well as future requirements. Optional modules allow for normal, high ohms, and low ohms measurements without having to purchase multiple bridges as per competitive products.
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4 Wire Earth Resistance & Resistivity Tester
4236 ER
Standard Electric Works Co., Ltd
● Microprocessor-controlled.● Earth resistivity (ρ) test.● Earth testing at 20Ω, 200Ω, 2kΩ.● Earth voltage measuring : 0-300V AC.● Automatic C spike check.● Automatic P spike check.● 2-Wire test, 3-Wire test, 4-Wire test.● LCM display.● Auto ranging.● Auto power OFF.● Data hold.● 200 measurement results can be saved in the memory and recalled on the display.● Interval between auxiliary earth spikes is 1.0~50.0m.● Optical USB to RS-232 data transmission.● The stored data can be transferred to a PC.● 2 optical LEDs are built-in for data transfer.
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Wind Direction Sensor
ENVIROMUX-EWDS
Balanced wind direction vane with a near-zero friction bearing and a high accuracy magnetic angle sensor to provide precision wind direction. Sensor range: full 360 degrees , zero deadband. Accuracy: ±1.8 degrees. Resolution: 12 bit or 0.025 degrees. Directional Vane approximately 8 inches (203 millimeters). 3 wire flying leads, 25-feet (7.6-meter). Supply voltage: 4.5 to 5.5 VDC. Current: 15 mA typical. Output: 5 to 95% of input voltage (0.25 to 4.75VDC). Requires the ENVIROMUX-S5VDC-5V to operate with ENVIROMUX-2D/5D/16D. Maximum cable length: 1000 ft (305m)
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Resistivity Standard
Resistivity Standards are bare silicon wafers available in 3 in, 8 in and 12 in sizes. The silicon is p-type (Boron) doped to nominal resistivity values, from 0.002 ohm.cm to 75 ohm.cm as available on the 3" model.
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Wind Transmitters
Comptus wind speed and direction transmitters convert the sensor signals into electrical outputs suitable for connection to displays, computers, dataloggers, wireless transmitters, or other controls. Output options include: 0-1 mA, 0-1 V, 0--5 V or 4-20 mA. Power options include: 24 VAC, 120VAC, 230VAC, 12-24 VDC. Comptus transmitters come standard in a track mount for installation in existing enclosures. They are also available in NEMA rated enclosures. Please contact us for enclosure options.
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4 Wire Earth Resistance & Resistivity Tester
4235 ER
Standard Electric Works Co., Ltd
● Microprocessor-controlled.● Earth resistivity (ρ) test.● Earth testing at 20Ω, 200Ω, 2kΩ.● Earth voltage measuring : 0-300V AC.● Automatic C spike check.● Automatic P spike check.● 2-Wire test, 3-Wire test, 4-Wire test.● LCM display.● Auto ranging.● Auto power OFF.● Data hold.● 200 measurement results can be saved in the memory and recalled on the display.● Interval between auxiliary earth spikes is 1.0~50.0m.
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Wind Turbine Performance Lidar
Wind Iris
The Wind Iris is based on Leosphere's leading WINDCUBE pulsedLidar technology, and is the first remote sensor dedicated to turbine-mounted measurements. It measures the horizontal wind speed and direction from 40m to 400m upwind of the turbine. Real time and average data can then be transferred automatically or stored in a data logger.
