Digital Power Analyzers | Yokogawa Test & Measurement Corporation (2022)

Overview:

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.

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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.

Industries:

  • Automotive

Industries:

Overview:

  • Motor testing, variable speed drive testing procedure
  • AC, DC, and power measurement
  • Precision measurements on motors and VFD systems
  • How to calculate energy efficiency

Industries:

  • Automotive

Industries:

  • Automotive

Overview:

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.

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This white paper describes the WT1800, a precision power analyzer that has been replaced by the WT1800E, a unit with numerous improvements including better accuracy.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.

Industries:

  • Automotive

Overview:

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.

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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.

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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.

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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.

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Hafeez Najumudeen at Yokogawa Europe explores how power measurements are in increasingly vital aid to modern day energy efficiency.

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"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 ...

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The specifications for the Type 2553 DC Voltage/Current Standard was changed on June 1982. The service manual was not rewritten to reflect these changes. There are two types of 2553: 1979/4 -- ...

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The WTViewerSave Settingfeature will only save the setting information of the WTViewer. The Save Setting feature will NOT save the setting information of the instrument. The saved file for the WT500, WT1800 or ...

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TheAC Power Input in all Yokogawa instrumentsis 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 thatare 2-pin. Often times this means the ...

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It is not necessary to specify the accuracy for PST valuesoutside the rangeof 1.0, as any valuelarger than 1.0 isnon-standard.The standard (IEC 61000-3-3) requires that the value of the short-term light ...

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The WT1600 can support printers that have the following commands. ESC-PESC-P2 (for printers that support ESC/P raster commands)BJPCL5LIPS3Post ScriptBefore attempting to connect a Network Printer to the WT1600, ...

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The circuit designfor theline filtersused on the WT & PZ seriesinstrumentsaresimilar toButterworthfilters buthave been redesigned.We redesigned the original filtering characteristic to obtaina ...

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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 ...

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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 ...

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  • 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

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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 ...

(Video) WT1800 Digital Power Analyzer Demonstration

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When making a WT230 Digital Power Meter RS232C connection using GateWT, pleaseverify thefollowing RS232C communication settings on the instrument: Mode = 488.2 Hand = 0 For = 0 Baud Rate = 9600 Terminator Cr+Lf Even though you can run ...

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  • 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

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For the WT1600, to view the harmonic data in the Bar Graph window of WTViewer, you have to select all the harmonic orders in the Numeric window. WTViewer's Bar Graph window display follows the harmonic items activated ...

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The D/A output of the WT230 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.

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Yes, you can use DL Term with the WT1800 using an Ethernet (VXI-11) or USB connection.

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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 ...

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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 ...

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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 ...

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No, it is not possible to change the maximum number of harmonic orders when calculating THD. On the WT210/WT230, the THD values are calculated based on 50 orders. To calculate THD on the WT210/WT230, there are two ...

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To use the WT3000 with the Flicker Software, the WT3000Precision 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 ...

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Yes, please contact your nearest Yokogawa representative for more details.

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Please download the attached PDF file for a list of pinouts for various communication cables.

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Although Yokogawa does not have any officialrecommendationfor USB to Serial converters, it is possible to usesomeUSB to RS232 DB9 Adapter Cables. If you choose to use alaptop PC without RS232C port, please use ...

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If you want to know the condition of the "Check Range" LED indicator for voltage and current, you will need to read three bits in the Extended Event Register."Bit-6", "Bit-7", and "Bit-8" needs to be read to know the ...

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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 tutorialcontainsquick and easy steps to help you get started ...

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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 AModel: WT1010, WT1030, WT1030M, WT2010, ...

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The optical resolution of the analog D/A option is 12-bits.

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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 usethe 366921Banana-to-BNC Conversion Adapter to ...

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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 ...

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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 ...

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The actual display update rate is shown below for observation times from 2 ms to 100 ms. 2 ms : 0.8 s4 ms : 0.9 s10 ms : 1.2 s20 ms : 1.8 s40 ms : 1.8 s100 ms : 1.8 sMeasurement ConditionsModules mounted : ...

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The output resolution for the WT3000 is 16-bits.

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When the selected data update cycle of the fundamental wave is shorter than the width of the analysis window determined by the fundamental frequency (cycle of the fundamental wave), measurement is not performed and no ...

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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 = ...

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The output resolution of the D/A option for the WT100/WT200 series is 12-bits.

(Video) 3 Phase 3 Wire Connection to Yokogawa WT3000 Digital Power Analyzer

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The maximum response time during normal measurement is 0.5s, which is the display update intervalx 2.

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With RS232C, the response time depends on settings other than the communications speed. An actual measurement example is given below at 1 byte=10 bits (start bit: 1 bit, data: 8 bits, stop bit: 1 bit, no parity) with a ...

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Yes, the setting values will be stored in internal memory if the instrument has firmware version 1.21 or later. You can check the version in the opening message when you first turn the power ON.

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This error occurs when the PLL source frequency is outside of the measurement range. The measuring frequency range for the PLL source is 40 Hz to 440 Hz. You can select voltage or current for the PLL source. Select a ...

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The frequency display and D/A output can handle only one input element at a time, either the voltage or the current. When either the V Hz or A Hz display function indicators are lit in display C, the frequency ...

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NO, you should not use the instrument with both the direct input and external sensor terminals wired.Doing so will put the user atrisk of electric shockand coulddamagethe instrument. This is because the ...

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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 ...

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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 ...

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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 ...

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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 ...

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Send the "NUMERIC:FORMAT:ASCII" commandThis 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 ...

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Send the "MEASURE:ITEM:NORMAL:PRESET:CLEAR" command. This command turns all items for output OFF. Therefore no items will be output if you send the "MEASURE:VALUE?" command.Send the "MEASURE:ITEM:NORMAL:V:ELEMENT1 ON" ...

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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 ...

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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 ...

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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 ...

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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 ...

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Tochange the voltage range on element 1 to 30 V, send the "INPUT:VOLTAGE:RANGE:ELEMENT1 30V" command to the measuring instrument.Tochange the current range on element 1 to the 1 A range, send the ...

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Tochange 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 ...

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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 ...

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Tochange the voltage range on element 1 to the 30 V range, send the "RV4" command to the measuring instrument.To change the current range on element 1 to the 1 A range, send the "RA5" command to the measuring ...

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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 ...

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  • 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.

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Check for differences in the specifications or features of the instruments.For values that do not match when inputting a 50/60 sine waveCheck whether the value is within the specifications (error) of each power ...

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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, ...

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Check for differences in the specifications or features of the instruments.For values that do not match when inputting a 50/60 sine waveCheck whether the value is within the specifications (error) of each power ...

(Video) How To Analyze Collected Power Data from a Power Analyzer with WTViewerE | Yokogawa Test&Measurement

Overview:

  • Power Analyzer/Power Meter
  • In the case of three-wire, or 3V3A wiring, or three phase power source, theydo not match because it is the line to line voltage that is measured

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In thethree-phase three-wire, or 3V3A wiring scheme, the phase angle of voltage between each input element is 60 degrees because it is the line to line voltage that is measured. Please download and refer to the ...

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In thethree-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 ...

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This is due to measurement and calculation error, or differences in calculation methods. On the WT, the three-phase apparent power (ΣS) equation is calculated under the assumption of a balanced condition (the ...

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When measuring input signals of distorted waves, signals that are DC-offset or signals that include superimposed harmonic components, will result in different values for power factor and phase anglethan those expected ...

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The peak value and crest factor may be unstable if they have not been captured accurately. If the peak value isnot stable, neither will the crest factor be stable.The cause is the difficulty in capturing the narrow ...

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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 ...

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This could be caused by any of the following:Is there any crosstalk (especially around the 2nd order)?Are there any effects of CMRR (especially around the 2nd order)?Is the location of measurement immediately next ...

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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 ...

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Check the Synch Source and Frequency Filter settingsWhen 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 ...

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Theinput terminals on all Yokogawa power meteras are located on the rear panel. This takes into account safety when handling the measuring instrument.The signal input to the power meter normally carries high ...

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This is to prevent an open current circuit.Among non-Japanese power meters, there are products that also use safety terminals for current terminals. Safety terminals can be said to be safe because the terminal is not ...

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A quick and simple wayof 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 ...

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To use USB interface on the WT500 and WT1800Power Analyzer from NI LabVIEW environment, you will need to use theUSB driver from National Instruments.This USB driver is usually installed when you install NI-VISA and is called the ...

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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 ...

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There are restrictions of the DSP hardware. WT230 and WT210 are low-cost power meters.So, alow-cost, modest performanceDSPutilized.This DSP has slow calculation. WT3000 is performing complicated ...

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The WT1800 allows you the ability to create and load your own custom display for special application needs. You will not only be able to generate your own custom background but you will be able to change the displayed ...

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What is the maximum size of ATA Flash Card we can use with the WT3000? The maximum size of the card to save data is 16GByte.The maximum size of the card used for firmware updating procss is limited to256MByte.(A ...

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The WT3000 enables users to save the waveform datavia 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 ...

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In the manual IM-WT1801-01EN, the following sentences are written.Fundamental Measurement ConditionsAll the settings for the fundamental measurement conditions for high speed data capturing are the same as those for ...

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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 ...

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It is possible to measure thephase difference by usingthefunction φU1(1)-U2(1) in Hamonics Measurement Mode.In this mode, ifthe wiringpattern is set to 1P2W, the PZ4000will display no value (----). It is ...

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The WT1800 and WT3000 series digital power analyzer offer two calculation methods, Type1 and Type3, for apparent and reactive power. Type1:TheWT will firstcalculatethe RMS voltage Urms, current Irms, and active ...

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While the unit is in CALIBRATION MODE,the calibrator maybe"loaded" by the input element. After running the performance test (with METCAL), ifthe inputelementreads low values after the new CALIBRATION ...

(Video) Measuring Current With a Digital Power Meter

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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 ...

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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 ...

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You can not use LabVIEW and WTviewer to communicate with the PCusing same USB driver. The USB driver for LabVIEW and the USB driver for WTvieweris different. Yokogawa'sYKMUSB driver is usedby WTviewer ...

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Yes, the WT210 will meet or exceed all requirements set by the Energy Star guideline. Please see the attached documents for more details.

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There are several items you will need to check and verify to solve this issue. Verify the GP-IB connectionSome instruments have a D/A output connector located next to the GP-IB connector. There have been some ...

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  • 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

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Unfortunately the WT3000 cannot display the RMS and DC values of voltage/current at the same time, even if youuse the user-defined function feature. You must select either RMS or DC mode in the Voltage/Current Range ...

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Please refer to the attached Excel spreadsheet for complete information regarding the RS232 cable pinouts used with by the WT & PZ Series Power Analyzers.

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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 ...

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The actual display update rate for the WT500 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 ...

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If the HOLD button was pressed when the WT210 was powered OFF, it causes the WT210 to display "-----" on the next time it is powered ON. You can revert back to a numerical display simply press the HOLD button.

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Please verify the following settings on the WT3000:Wiring System set to 3P3W or 3V3AITEM set to φUi-UjElement set to ΣA ITEM set to φUi-UkWiring 3P4W or 3P3W(3V3A)Assign element 1,2, 3 to ΣAUpdate rate is not too fast (

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The value depends on the model of the power analyzer.For WT1000, WT2000, WT100, and WT200, it is fixed to the fundamental wave. For power analyzerswith 7 segments LED, the relative harmonic content is fixed to the ...

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"Zero level correction" is performed only when the setting initialization accompanies one of the following change.Switching normal measurement/harmonics measurement.Switching the voltage range.Switching the current ...

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The Precision Power AnalyzerWT3000 D/A output terminal is electrically isolated from the case. For all other models, the D/A output terminal is connected to the case.

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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 ...

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Yes, if the instrument is in auto-range, zero level correction will still be executed.

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The impedance of the 366924 and the 366925 BNCcableis 50 Ω.

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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 totwo or more instruments at the same time. Two or more Xviewer ...

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When using WTViewerFree to automatically save data in CSV format, a lack of memory may occur due to increasing load onanti-virus software such as Virus Buster. As thedata save time becomes longer,the CSV file will ...

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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, ...

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This comprehensive training module covers the following topics:

  • Introduction & Product Familiarization
  • Basic System & Wiring Configurations
  • Basic Setup and Operating Features
  • Step-by-Step Video Demonstrations of Features

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This training module covers the following topics:

  • Introduction & Installation
  • Connecting to Instrument
  • Setup, Measure, and Analyze
  • File Operations: Saving and Loading Data
  • Video Demonstrations

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This comprehensive training module covers the following topics:

(Video) Webinar - Electric Motor Testing with a Digital Power Meter

  • Introduction & Product Familiarization
  • Basic Setup, System & Wiring Configurations
  • Basic and Advanced Analysis Features

FAQs

What is the difference between power analyzer and power meter? ›

No matter where the RF signal is centered, the power meter reads the same total average power value (Table 2). The RF power analyzer is programmed to read the power only in the channel in which the mobile device is supposed to be transmitting.

What is digital power analyzer? ›

Power analyzers can digitally detect frequency cycles to provide reliable RMS periods during power conversion. A power analyzer must also detect the voltage and current of the system.

What does a power quality analyzer measure? ›

Power quality analyzers are used to continuously monitor and analyze electricity lines for disturbance which can disrupt the reliable delivery of energy or cause damage to equipment plugged into the grid.

What is DC power analyzer? ›

The N6705C DC power analyzer is a highly integrated instrument that combines up to four advanced DC power supplies or electronic loads plus a digital multimeter (DMM), oscilloscope, arbitrary waveform generator (AWG), and datalogger.

What are the application of power analyzer? ›

Power analyzers are used for measuring a host of aspects of electrical power for applications which include testing power electronics, inverters, motors and drives, lighting, home appliances, office equipment, power supplies, industrial machinery and more.

How do you use a power quality analyzer? ›

How to Use Power Quality Analyzers - YouTube

Videos

1. WT5000 Precision Power Analyzer Current Sensor Element | Yokogawa Test&Measurement
(Yokogawa Test&Measurement)
2. PPA5530 Series Precision Power Analyzers | N4L Power Measurement & Test Equipment
(CaltestInstruments)
3. How to Perform Cycle by Cycle Measurements with a Power Analyzer
(Yokogawa Test&Measurement)
4. WT1800 Digital Power Analyzer Demonstration
(Yokogawa Test&Measurement)
5. How-to Use a Yokogawa WT1600 Digital Power Meter
(Advanced Test Equipment Corp. (ATEC))
6. Fundamentals of Electrical Power Measurements
(Yokogawa Test&Measurement)

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