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Yokogawa WT5000 - transformer version - power analyzer with 0.008% accuracy

NEW PRODUCT FOR THE FUTURE

Yokogawa is launching the WT5000 precision transformer power analyzer to help transformer manufacturers develop and validate losses in high-efficiency products for power customers.

Transformers play a key role in the power grid and account for about 4% of distribution losses. Given that electricity demand is expected to rise to 40 TWh by 2040, achieving more efficient transformers is proving critical.

Distribution network owners impose penalties on transformer manufacturers depending on the degree of losses measured during a no-load test. Since these penalties can exceed €13,000 per kilowatt including measurement uncertainty, it is critical that transformer manufacturers measure these losses accurately and with as little uncertainty as possible. This will translate into lower penalty costs and greater customer confidence.

The WT5000 Precision Power Analyzer - Transformer Version helps manufacturers get the highly accurate analysis needed to develop economical and efficient transformers. The instrument is equipped with a special input module with much better uncertainty specifications for testing transformers.

The WT5000 Precision Power Analyzer - Transformer Version is Yokogawa's most accurate power analyzer, offering 0.008% accuracy at unity power factor and providing the best accuracy at low power factors for commercial frequencies from 45 to 66 Hz. Low power factors have a significant impact on accuracy. The instrument offers an accuracy of 0.6% of the measurement reading, even with a power factor as low as 0.001 at 100 V and 1 A current.

Kelvin Hagebeuk, Marketing Manager, Yokogawa Test and Measurement:

"Whether for R&D, production or acceptance testing, the WT5000 Precision Power Analyzer - the transformer version - makes the reliable measurements that engineers need to improve transformer efficiency and verify losses to reduce overall cost at utilities."

Accredited Laboratory - a guarantee of quality

Transformer manufacturers can trust the WT5000 Precision Power Analyzer's ability to measure low power factor because it comes with calibration certificates accredited by Yokogawa's ISO17025-accredited calibration laboratory . This gives confidence that they meet the requirements of IEC60076-8.

The WT5000 precision transformer power analyzer is optimized with ISO17025-accredited calibration at 53 Hz and power factors of 1, 0.5, 0.05, 0.01 and 0.001. Additional calibration up to 100 kHz ensures performance when measuring distorted waveforms, such as when measuring loss current in the no-load condition of transformers. This enables the integrated transformer measurement system to measure power losses with high accuracy and capture any drifts outside the limits described in IEC60076-8.

A large touchscreen operated by function keys and advanced remote data capture software provide seamless and extremely intuitive operation of the device. This makes connecting, configuring and measuring uncomplicated. The 10.1-inch WXGA touchscreen provides excellent noise immunity even in high noise environments.

When using the analyzer, engineers can measure three or four different power phases at 10 MS/s (18 bits). The high-resolution 10.1-inch WXGA display allows up to seven waveforms to be displayed on a split screen and can display up to 12 pages of measurement parameters from devices as diverse as inverter-driven motors, renewable energy technologies, traction applications such as pumps, fans, electric vehicles and power transformers. Measurements can also be displayed in vector format or as time trends.

Yokogawa also offers support software packages that can be used to coordinate several instruments, including the WT5000, into a single measurement set for simultaneous viewing of different data sources.

Some software features allow users to simultaneously display up to 22 waveforms and two harmonic bar graphs (six waveforms, sixteen trends, two vectors and three harmonic bar graphs: WTViewerE) in split-screen mode. You can also zoom in with the cursors to see more detail in the area of interest. Users can customize, save and load screen layouts, and specify data to be saved in CSV format. The software also allows users to create their own calculations, combining values from multiple power analyzers.

In addition, the software allows users to analyze and control remote measurements in real time or use previously obtained data. In online mode, users have real-time control over measurements from each connected instrument, allowing them to remotely start and stop integration and collect live measurement values. In offline mode, users can also analyze recently acquired or previously stored data.

Internal memory of up to 32 GB can be used to store and recall various custom configurations and test settings. It can also be used to record large amounts of measurement data over long periods of time, acting like a recorder. It also facilitates data storage without the need to prepare external media.

Thanks to its three-phase delta calculation function, the WT5000 meter makes it possible to check line voltage and phase voltage simultaneously without changing the wiring. The built-in delta calculation function provides both star-delta and delta-star conversion, allowing users to calculate individual phase voltages based on line voltages measured in a three-phase, three-wire (3V3A) system.

TheWT5000 offers advanced harmonic analysis, allowing engineers to evaluate and compare input and output harmonics of inverters, motors or power conditioners up to the order of 500. In addition tomeasuring harmonics and power simultaneously, the instrument also allows comparison of harmonics from two different input sources.

In addition to low-pass frequency and linear filters, the WT5000 meter has advanced filtering capabilities, allowing precise analysis of even the most demanding waveforms.

Familiarize yourself with the device

Formore information on the WT5000 Transformer Power Analyzer , clickhere.

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About Yokogawa Test & Measurement

Yokogawa has been developing measurement solutions for 100 years, consistently finding new ways to provide R&D teams with the tools they need to get the best results from their measurement strategies. Throughout its history, the company has pioneered accurate power measurements and is a market leader in digital power analyzers.

Yokogawa's instruments are known for maintaining a high level of precision and for delivering values for much longer than the typical useful life of such devices. Yokogawa believes that precise and efficient measurements are the foundation of successful innovation - which is why the company has focused its research and development on providing the tools that scientists and engineers need to meet challenges large and small.

Yokogawa is proud of its reputation for quality, both in the products it delivers - often adding new features in response to specific customer requests - and the level of service and advice it provides to customers, helping them develop measurement strategies even in the most demanding environments.

The guaranteed accuracy and precision of Yokogawa instruments comes from the fact that Yokogawa has its own European standards laboratory at its European headquarters in the Netherlands. This laboratory is the only industrial (i.e., non-governmental or national) organization in the world offering accredited power calibration at frequencies up to 100 kHz. The ISO 17025 accreditation demonstrates the laboratory's international competence.

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