Precisão, Estabilidade e Versatilidade de Classe Mundial
Medir a potência verdadeira é mais do que multiplicar tensão e corrente. Avanços complexos em eletrônica de potência e eficiência energética criam desafios de medição que podem confundir até mesmo os engenheiros mais experientes.
Ao contrário das ferramentas de aquisição de dados e de medição de energia baseadas em osciloscópios, os analisadores de energia são projetados especificamente para garantir a precisão da medição ao testar dispositivos que geram, transformam ou consomem eletricidade.
A Yokogawa, fornecedora líder mundial de analisadores de potência, fornece soluções para teste de eletrônica de potência, inversores, motores, iluminação, eletrodomésticos, equipamentos de escritório, fontes de alimentação, maquinário industrial e muito mais.
Realiza medições de potência com confiança
- Precisão garantida em uma ampla faixa de tensão/corrente e largura de banda de frequência
- A escolha preferida de padrões nas organizações
- Uma solução para cada aplicação
- Recursos educacionais extensivos
| Model | WT300E | WT500 | WT1800E | WT1800R | PX8000 | WT5000 |
|---|---|---|---|---|---|---|
|
|
 |
 |
 |
|
|
|
| Number of Input Channels | 1, 2 or 3 | 1 - 3 | 1 - 6 | 1 - 6 | 1 - 4 | 1 - 7 |
| Basic Power Accuracy (60 Hz) |
0.1% of Reading + 0.05% of Range |
0.1% of Reading + 0.1% of Range |
0.05% of Reading + 0.05% of Range |
0.05% of Reading + 0.05% of Range |
0.1% of Reading + 0.1% of Range |
0.01% or Reading + 0.02% of Range |
| Bandwidth | DC, 0.1 Hz to 100 kHz | DC, 0.1 Hz to 100 kHz | DC, 0.1 Hz to 1 MHz | DC, 0.1 Hz to 1 MHz | DC to 20 MHz | DC to 1 MHz |
- WT5000 o analisador de potência de precisão com acurácia superior
- 7 elementos de entrada intercambiáveis
- 4 entradas de medição de motores
- Teste de harmônicos em conformidade com a IEC61000-3-2
- Medições de potência e harmônicos (THD) até a ordem 500,
- Eficiência Elétrica & Mecânica de inversores e motores em veículos elétricos e híbridos
- Power, harmonics (THD) measurements (up to 500th order)
- Electrical and mechanical efficiency of inverters and motors in EV and HEV
- Power and Harmonic (THD) Measurements with Independent Range Controls
- Efficiency measurements of AC/DC or DC/AC Inverters & Motors
- Medições de consumo em "stand by", Energy Star®, SPEC Power® e IEC62301/EN50564
- Avaliação e teste de baterias, eletrodomésticos e "nobreaks"
- Transient/Start-up Waveform Capture & Power Analysis
- Harmonics, Cycle by cycle and FFT analysis
The Yokogawa CW500 is a portable power analyzer that logs transient power phenomena in addition to measuring single to three phase power.
Yokogawa's Power Analyzer software manages numeric, waveform, and harmonic data measurements. It enables data logging and instrument configuration from your computer.
Accessories for digital power analyzers include various voltage and current transformers, clamp-on current probes, and a selection of test leads.
- Regulate AC and DC with high-precision current transformers
- Current transformer meters from 60-5000 Amp peak
- Units with up to six CTs
This panel-mounted power meter and energy meter with a large, three-row LED display integrates all the measuring functions required for power management in locations such as factories and buildings into a single unit.
In this application note you will learn when and how to use different methods to connect a current transformer to a power analyzer.
【search key】 WT5, WT50, WT500, WT
Maximum torque per ampere (MTPA) is an optimization strategy for the control of electric motors and drives that employ field-oriented control (FOC), particularly with electric vehicles (EVs) and industrial automation applications. The goal of MTPA is to achieve the maximum possible torque output from a motor for a given current input.
Maximum power point tracking (MPPT) charge controllers play a crucial role in the optimization of renewable energy system efficiency and performance. Through dynamic tracking of a renewable energy source’s maximum power point, an MPPT controller enables more efficient energy harvesting, faster charging, and adaptability to changing environmental conditions.
Detailed measurement methods, supply voltage settings, and others are specified for the harmonic/flicker standard test.
【search key】 WT1, WT18, WT180, WT3, WT30, WT5, WT50, WT500, WT
Energy consumption in low-power and standby modes is an important issue due to increased awareness that energy resources are becoming limited and demand for energy-saving household electrical appliances continues to grow. IEC62301 Ed2.0 (2011) and EN 50564:2011 define standby mode as the lowest energy consumption of an appliance not performing its main function, when connected to the mains. IEC62301 Ed2.0 (2011) defines test methods and requirements for both the mains supply and the test equipment. It is crucial that design and test engineers choose highly accurate power measurement tools to confirm that their devices meet these requirements.
Harmonic content is a key contributor to low power quality and agency standards are written to ensure manufacturers take action to measure and control harmonics.
We have developed the WT3000 Precision Power Analyzer, which features the world's highest measurement accuracy of ±0.02% of reading and a measurement bandwidth of 0.1 Hz to 1 MHz as well as DC signals.
- Electric Motor Power Measurement and Analysis
- Improving/optimizing electric motor performance and efficiency
- Understand how electric current is measured
Government agencies that define the standardization of energy efficiency metrics continue to be a driving force behind the development of the next generation electric vehicle powertrains. These metrics require manufacturers to have high confidence in their measurements and motivate the optimization of efficiency.
Standards driving energy efficiency classifications are a driving force behind the development of the next generation of motor and drive technologies. Learn more here.
Yokogawa developed the PX8000 precision power scope, a high-accuracy power meter, which can measure reactor losses in inverters, motors and the like, by analyzing waveforms. The major specifications of the instrument are as follows: basic accuracy is 0.2%, voltage measurement bandwidth is DC and 0.1 Hz to 20 MHz (-3dB, typical), and current measurement bandwidth is DC and 0.1 Hz to 10 MHz (-3dB, typical). The PX8000 offers the functionality usually provided by a waveform measuring instrument, such as a variety of triggers, tracking, statistical processing, and waveform parameter calculation functions. Furthermore, to improve measurement accuracy at low power ratios this product comes with a de-skew function for correcting signal delays from the current sensor and a data latency adjustment function. This paper describes the PX8000, focusing on a newly developed element dedicated for power measurement and technology for phase correction.
This white paper describes the WT1800, a precision power analyzer that has been replaced by the WT1800E, a unit with numerous improvements including better accuracy. Please visit the WT1800E product page to learn more about the WT1800E.
To keep pace with the increasing speed of switching devices in inverters, Yokogawa has developed the WT1800 precision power analyzer with 10 times faster sampling speed and 5 times wider frequency bandwidth compared with previous models. Its basic accuracy is 0.15% and the frequency bandwidth of voltage and current is 0.1 Hz to 5 MHz (-3 dB, Typical) including the DC component. With up to six inputs, a single WT1800 unit can measure the efficiency of three-phase inverters. In addition, the high-speed data capturing mode allows the WT1800 to measure transient power. This paper describes the high-speed, real-time power measurement technologies underlying these functions.
We have added a harmonics current/flicker measuring function to the WT3000 Precision Power Analyzer with world-leading accuracy of power measurement. We have also created PC software for harmonics current/flicker measurement. This PC software and the WT3000 comply with the IEC61000- 3-2 harmonics current standard and IEC61000-3-3 voltage fluctuation/flicker standard, thus enabling the electrical power, harmonics current and flicker of electrical equipment to be measured precisely with a single unit. This paper outlines the harmonics current standard and voltage change/flicker standard, along with the measurement principle and PC-based software of the WT3000.
In recent years, there has been an increased emphasis on energy efficiency in industrial systems, resulting in more penetration of power electronics in equipment such as inverters and motor drives.
Many industry trends are conspiring to make power analysis an important consideration for designers. The New Electronics editor takes a look at this expanding arena by talking to Hafeez Najumudeen of Yokogawa.
Clive Davis from Yokogawa's Europe T&M office describes a measurement system for real-time calculations of power and efficient in power electronics devices, and gives some examples.
Hafeez Najumudeen at Yokogawa Europe explores how power measurements are in increasingly vital aid to modern day energy efficiency.
"Error(Code:846): Attempted to start integration while measurement of peak overflow was in progress"The following error code will appear if Peak Over has occurred and you attempt to start integration. The WT3000 has two ...
- WTViewer Save Setting feature will only save WTViewer setting information
- Will NOT save the setting information of the instrument
The AC Power Input in all Yokogawa instruments is designed as a 3-pin connection (one of which is a GND pin). In some parts of the world, PCs are sold with AC power cables that are 2-pin. Often times this means the ...
It is not necessary to specify the accuracy for PST values outside the range of 1.0, as any value larger than 1.0 is non-standard. The standard (IEC 61000-3-3) requires that the value of the short-term light ...
The circuit design for the line filters used on the WT & PZ series instruments are similar to Butterworth filters but have been redesigned. We redesigned the original filtering characteristic to obtain a ...
There are no built-in over temperature protection devices in the WT3000. The official operating range covered by warranty is listed at 5°C - 40°C. Our own internal test have revealed that it is possible to ...
The part numbers for the 2 piece screws in the WT210 Rack Mount Kit (751533-E2) are listed below: Y9414LB: Binding-head screw (M4, 14mm long) Y9414EB: Flat-head screw (M4,14mm long) If you wish to purchase the screws ...
- WT1800 High Performance Power Analyzer, WT500 STORE functions can only be used to record NUMERIC data
- WT1600, WT3000 STORE functions can be used to record both NUMERIC and WAVEFORM data
Yes, the AUX inputs on the WT1800 can be used in the Math functions. For example, if you wanted to measure a DC bus input using the AUX inputs (input elements not connected), you would scale one of the AUX inputs to ...
When making a WT230 Digital Power Meter RS232C connection using GateWT, please verify the following RS232C communication settings on the instrument: Mode = 488.2 Hand = 0 For = 0 Baud Rate = 9600 Terminator Cr+Lf Even though you can run ...
- Current Knobs and Pads (Studder) Used on the Direct Input Terminals of the WT500 Part Numbers
- A9105ZG: Black Current Knob Set of 2 B9292GX: Pad (Studder) Set of 10
The D/A output of the WT230 Power Meter uses a 24-Pin Centronics type connector. For additional informating regarding the 24-Pin Centronics Connector, please refer to the attached PDF and click on the link below.
You can read the average active power during continuous integration mode (just before the integral resets) for the WT230, by monitoring the status of the ITG or ITM bits of the extended event register. Bit 1 ITG is ...
Although WTViewer is not officially supported under the Linux environment, users have successfully done so using WINE (flavor of Linux) via RS232. For connectivity to WT210/WT230, WTViewer requires that the meter be set ...
It is possible to lock out all the keys, including LOCAL, on the WT210/WT230 using a GPIB specific or controller specific command.For the GPIB controller from National Instruments, the command is called LLO or Local ...
To use the WT3000 with the Flicker Software, the WT3000 Precision Power Analyzer must have the following options: /G6 option - Advanced Calculations /FL option - Flicker Measurements 1 to 3 elements - 30A Input Module Note: The 2A input ...
Yes, please contact your nearest Yokogawa representative for more details.
Although Yokogawa does not have any official recommendation for USB to Serial converters, it is possible to use some USB to RS232 DB9 Adapter Cables. If you choose to use a laptop PC without RS232C port, please use ...
The following product tutorial guides have been created for the WT and PZ Series Power Meter and Analyzer instruments and are available for download. Each tutorial contains quick and easy steps to help you get started ...
Yes, it is possible to alter the standard model WE7000. The following is a list of range standard special order specifications and correspond models. Current Range 1/10 A Model: WT1010, WT1030, WT1030M, WT2010, ...
The WT1000/WT2000 series instrument uses a BNC connector for the external shunt input terminal. The output terminal of the 751550 Clamp Probe is a banana plug. Please use the 366921 Banana-to-BNC Conversion Adapter to ...
Output function: HArWhen the default output item is set to 1, the printout time for up to the 50th order is about 116 seconds. The printout time for up to the 25th order is about 75 seconds. Output function: HArWhen the ...
You can use the Power Viewer (Model 253734) software. However if you only need to view waveforms, we recommend you use the Waveform Viewer (Model 700919, version 1.23 or later) software. The trial version of the Power ...
The actual display update rate is shown below for observation times from 2 ms to 100 ms. 2 ms : 0.8 s 4 ms : 0.9 s 10 ms : 1.2 s 20 ms : 1.8 s 40 ms : 1.8 s 100 ms : 1.8 s Measurement Conditions Modules mounted : ...
Selecting formulas for calculating apparent power and reactive powerThere are several types of power—active power, reactive power, and apparent power. Generally, the following equations are satisfied:Active power P = ...
NO, you should not use the instrument with both the direct input and external sensor terminals wired. Doing so will put the user at risk of electric shock and could damage the instrument. This is because the ...
You can use the "STATUS:ESSR?" command to access the extended event register and determine whether the data was updated. You can judge the data update status by referencing bit 1 (DAV) of this register. However to do ...
Send the appropriate command as shown below to your instrument, then read in all the data that is returned. PZ4000: "NUMERIC:NORMAL:VALUE?" WT1600: "NUMERIC:NORMAL:VALUE?" WT100/200 series ...
Send the "OFDO" command.This command turns all items for output OFF. Therefore no items will be output if you send the "OD" command. Send the "OF1,1" command to the measuring instrument. This command turns the voltage ...
To change the voltage range on element 1 to the 30 V range, send the "RV1,4" command to the measuring instrument. To change the current range on element 1 to the 1 A range, send the "RA1,5" command to the measuring ...
Send the "NUMERIC:FORMAT:ASCII" command This sets the data format for the data you want to read out. Measured data read out using the "NUMERIC:NORMAL:VALUE?" command is output as an ASCII string. Send the ...
Send the "OF1,1,1" commandThis command sets the voltage value (V) from element 1 to output to channel 1 (from among the 14 output channels), and causes the voltage of element 1 to be read out. In the same manner, make ...
Send the "MEASURE:NORMAL:ITEM:PRESET:CLEAR" command to the measuring instrument. This command turns all items for output OFF. Therefore no items will be output if you send the "MEASURE:NORMAL:VALUE?" command. Send the ...
You can determine whether data was updated by performing a serial poll and referencing the status byte.Bit 0 of the status byte (D101) changes to 1 when data is updated. When bit 0 changes to 1, bit 6 (D107) also ...
You can use the "STATUS:ESSR?" command to access the extended event register and determine whether the data was updated. You can judge the data update status by referencing bit 0 (UPD) of this register. However to do ...
To change the voltage range on element 1 to 30 V, send the "INPUT:VOLTAGE:RANGE:ELEMENT1 30V" command to the measuring instrument.To change the current range on element 1 to the 1 A range, send the ...
To change the voltage range on element 1 to 30 V, send the "CONFIGURE:VOLTAGE:RANGE:ELEMENT1 30V" command to the measuring instrument.To change the current range on element 1 to the 1 A range, send the ...
To change the voltage range on element 1 to 30 V, send the "CONFIGURE:VOLTAGE:RANGE 30V" command to the measuring instrument.To change the current range on element 1 to the 1 A range, send the "CONFIGURE:CURRENT:RANGE ...
The waveform may actually not be a pure sine wave. Even though a 50/60 Hz sine wave is expected, the following factors may be involved: The waveform is slightly distorted (harmonic components are mixed in) Small ...
- Check the "Sync Source" and zero cross filter (frequency filter) settings.
- For the WT3000, "Sync Source" setting is irrelevant if the data update rate is 250 ms, 500 ms, 1 s, or 2 s.
Check for differences in the specifications or features of the instruments. For values that do not match when inputting a 50/60 sine wave Check whether the value is within the specifications (error) of each power ...
The measurement intervals of the measured I/O data must overlap exactly. Check the sync source setting. For example, route the input to a three-phase device under measurement to input elements 1-3 on the power meter, ...
Check for differences in the specifications or features of the instruments. For values that do not match when inputting a 50/60 sine wave Check whether the value is within the specifications (error) of each power ...
- Power Analyzer/Power Meter
- In the case of three-wire, or 3V3A wiring, or three phase power source, they do not match because it is the line to line voltage that is measured
In the three-phase three-wire, or 3V3A wiring scheme, the phase angle of voltage and current input to each input differs from that of the actual load because it is the line to line voltage that is measured. In ...
The peak value and crest factor may be unstable if they have not been captured accurately. If the peak value is not stable, neither will the crest factor be stable. The cause is the difficulty in capturing the narrow ...
The difference in measurement values can be attributed to the difference in calculation methods for normal mode and harmonic mode. The voltage, current, and power in normal mode are displayed as the total of the ...
The following may be causing the problem. 5V may have occurred during rating. Check the range setting again. DA output error can affect the values when the input is smaller than the rating. Have you checked the error ...
Check the Synch Source and Frequency Filter settings When a single-phase signal being measured fluctuates around power factor of 1.Slight fluctuations in the measured values of voltage, current, and power can cause a ...
- Power analyzers/power meters
- Binding posts on the direct current input terminals
- Prevent an open current circuit and safety hazards
A quick and simple way of accessing the measurement data from a CSV file saved by the WT1800 is to use the MATLAB import wizard. In MATLAB, simply click on File > Import Data.... You can also use the MATLAB built-in ...
To use USB interface on the WT500 and WT1800 Power Analyzer from NI LabVIEW environment, you will need to use the USB driver from National Instruments. This USB driver is usually installed when you install NI-VISA and is called the ...
To measure inrush current on the WT1800, you will need to define and use the IPPEAKMAX() user defined function in combination with the Max Hold feature. A complete tutorial with instrument settings and how-to procedures ...
The WT3000 enables users to save the waveform data via two methods: waveform displayed data, and waveform sampled data. The number of data points saved by the waveform displayed data method is compressed to a total ...
When the WT1600 Digital Power Analyzer is set into Integration mode, the averaged power (watt) values can be calculated and displayed. This is available only by using the User-Defined Function feature found in the MEASURE button menu. The ...
It is possible to measure the phase difference by using the function φU1(1)-U2(1) in Hamonics Measurement Mode.In this mode, if the wiring pattern is set to 1P2W, the PZ4000 will display no value (----). It is ...
The WT1800 and WT3000 series digital power analyzer offer two calculation methods, Type1 and Type3, for apparent and reactive power. Type1:The WT will first calculate the RMS voltage Urms, current Irms, and active ...
The Urms and Umn values can be simultaneously read and retrieved using communication commands, only if the instrument is in WT300 IEE 488.2 mode. The WT300 has two communication command modes:IEE 488.2 in WT210/WT230 ...
To programmatically read all 500 harmonic orders measurement values, please use the ":NUMERIC:LIST" command set. The maximum number of items for the :NUMERIC:LIST:VALUE? command is 64. However, 1 LIST ITEM can ...
You can not use LabVIEW and WTviewer to communicate with the PC using same USB driver. The USB driver for LabVIEW and the USB driver for WTviewer is different. Yokogawa's YKMUSB driver is used by WTviewer ...
Yes, the WT210 will meet or exceed all requirements set by the Energy Star guideline. Please see the attached documents for more details.
- Power Analyzer Accuracy and Basic Uncertainty Calculator from Yokogawa Test&Measurement
- Determine uncertainty in voltage, current, and active power (watts) measurement values
- Various frequency ranges and wiring systems
The IEC Harmonic analysis on the DL/DLM series oscilloscopes provides a rough analysis and estimation for harmonic testing. The scope will perform an FFT on the current waveform and can be used to measure the general ...
The actual display update rate for the WT500 Power Analyzer will depend on the input signal and the trigger setting. In addition, there may be a very small trigger delay (several milliseconds) if the input signal does not match the ...
The value depends on the model of the power analyzer. For Precision Power Analyzer WT1000, WT2000, WT100, and WT200, it is fixed to the fundamental wave. For power analyzers with 7 segments LED, the relative harmonic content is fixed to the ...
The Precision Power Analyzer WT3000 D/A output terminal is electrically isolated from the case. For all other models, the D/A output terminal is connected to the case.
Yes, by using the User-Defined Function feature, the WT1600 can display the average power value during integration. Enter the following equation to calculate the average power for Element ...
The impedance of the 366924 and the 366925 BNC cable is 50 Ω.
Can Xviewer.exe be run as multiple instance? No - not at this time. Xviewer can not control two or more DL850 chassis. Xviewer can not connect to two or more instruments at the same time. Two or more Xviewer ...
The following softwares have been tested for Windows 7 compatibility. WTViewer Xviewer SL1000 Acquisition Software USB Instrument Drivers for all USB supported instruments TMCTL Library Files for programming with VB, ...
This training module covers the following topics:
- Introduction & Installation
- Connecting to Instrument
- Setup, Measure, and Analyze
- File Operations: Saving and Loading Data
- Video Demonstrations
Brochuras
- All Products Guide (27.5 MB)
Visão geral do produto
The current sensor element for the Yokogawa Test&Measurement WT5000 Precision Power Analyzer is ideal for applications requiring a current transformer for high-current measurements. The internal DC power supply simplifies preparations before measurement, requiring only a connecting cable and eliminating the external power supply.
The WT5000, an industry-leading power analyzer, features seven field-removeable elements, 10 MS/s, 1 MHz power bandwidth, 18-bit resolution, and 0.03% basic power accuracy. Yokogawa Test&Measurement continues to innovate on the platform, enabling /D7 data streaming, /G7 harmonics, and flicker analysis.
The new current sensor element replaces the traditional current inputs and includes a sensor input terminal with integrated ±15V power supply, eliminating the need for an external power supply. The isolated voltage terminals remain the same as the 5A and 30A elements.
Test and measurement engineering work groups can have differing priorities and requirements, which often results in multiple instrumentation systems and data file formats, as well as incompatible reporting. This lack of effective communication between groups and instruments causes decreased efficiency and quality and increased spending and time to market. Unify test and measurement instrumentation, software, and data across engineering teams with a suite of solutions that caters to the different needs of engineering work groups, including accurate power data, fast sampling rates, long recordings of multiple different input types, and insights into waveform data.
How-tos
- How To: Yokogawa WT5000 Power Analyzer Current Connectors
- High current power/wire connectors
This video demonstrates how to measure transient phenomena on power signals using the Yokogawa Test&Measurement PX8000 Precision Power Scope.
In several applications, especially those testing AC power to a standard such as IEC61000-3-11, the voltage and current signals must be monitored to confirm there are no major dips and/or swells in the signal. This can be done with instruments capable of reporting rms values, including power analyzers, traditional oscilloscopes, and some data acquisition systems.
To test to a standard, however, the instrument must have an accuracy spec that is traceable back to a national standard of calibration such as ISO17025 or NIST.
Having multiple memory options allows engineering groups to optimize how data is stored, no matter if you need to record for a long time at slower sampling rates, do a fast capture at high sampling rates, or anything in between.
The Yokogawa Test&Measurement DL950 ScopeCorder operates as an oscilloscope and incorporates the ability to record data for long periods of time like a data acquisition recorder. There are four memory types on the DL950 ScopeCorder: internal memory, solid state drive, flash memory, and PC storage through the IS8000 Integrated Test and Measurement Software Platform. This videos talks about the advantages of each of these and how to pick the best data recording method for you.
This video demonstrates how to test to an IEC standard (IEC 61000) using a Yokogawa Test&Measurement WT5000 Precision Power Analyzer and the harmonic flicker testing software. The software automates the process of judging if the device under test is compliant with the chosen standard and allows you to output the necessary test reports for your records.
Webinars
- Establishing baselines for system efficiency
- Conducting inverter control signal analysis at the systems level
- Identifying critical measurements for benchmarking inverter input, inverter output, and motor output
- Analyzing motor control signals, including torque control variables, positional sensors, and pulse-width modulation (PWM), as well as torque measurements
- A look at multi-phase measurements and measurement techniques
- A review of practical applications
- Real-world examples
With ongoing innovations in motor and inverter technologies seeking to advance global decarbonization objectives in the automotive industry, it’s crucial that engineers have a thorough understanding of how to properly analyze these systems.
This complimentary webinar provides engineering professionals involved in motor and control system development with insights that enable data benchmarking and troubleshooting issues related to energy efficiency in electric vehicle (EV) powertrains.
Key webinar topics include:
Although DC power measurements can be fairly straightforward, complexities with AC power measurements arise when dealing with distorted waveforms, fluctuating power factors, and multiple phases, which introduce intricacies that complicate an otherwise simple measurement process.
This on-demand webinar provides an informative dive into the various fundamental aspects of power measurement and includes: