Precision Power Analyzer Basic Accuracy 0.01% of reading Basic Power Accuracy Good Readability 0.02% of reading The Large, 8.
Precision Power Analyzer WT3000 Yokogawa’s power measurement technology provides best-in-class*1 precision and stability APEX Basic Power Accuracy: ±0.02% With basic power accuracy of ± 0.02% of reading, DC and 0.1 Hz–1 MHz measurement bandwidths, and up to four input elements, the WT3000 provides higher-accuracy measurement for inverter I/O efficiency. More Precise. More Bandwidth. More Features.
Better Efficiency in Power Measurements In developing the WT3000, Yokogawa focused on improving efficiency in two basic areas. One goal was to obtain highly precise and simultaneous measurements of the power conversion efficiency of a piece of equipment. The other objective was to improve equipment evaluation efficiency by making simultaneous power evaluations and tests easier and faster. Select the model most suited to your measurement needs.
Precision Power Analyzer WT3000 FUNCTIONS 䉴 WT3000 Controls: Simple to Use, Easy to View The WT3000 was designed with user-friendly functions and controls in response to user requests for a simpler range setting operation and more user-friendly parameter setting display process.
OPTIONS 䉴 A wide variety of optional functions make it easy to perform sophisticated power evaluations. When you purchase a WT3000 from Yokogawa, you get to select just the options you need. This approach lets you maximize performance at a lower cost.
Precision Power Analyzer WT3000 Variety of Communication Functions (GP-IB Comes Standard) USB Port (PC) Option (/C12) * Select USBport (PC) or RS-232 The USB port (type B connector) on the rear panel of the WT3000 allows data communications with a PC1. 1. USB driver required for USB communications. A USB driver is available from our Web site. Ethernet port (/C7) The optional Ethernet port (100BASE-TX/10BASE-T) allows you to connect the WT3000 to a LAN.
Evaluation of Lighting Devices High Accuracy Measurements of Transformers • Simultaneous Measurement of Voltage, Current, and THD (Total Harmonic distortion) Testing of lighting devices often involves measurement of voltage, current, and THD, a parameter that indicates the quality of power. This is because distortion in voltage and current waveforms is becoming more prevalent due to the increasing complexity of control systems.
Precision Power Analyzer WT3000 SOFTWARE Utility Software WTViewer 760122 WTFileReader (Combined into the WTViewer) WTViewer is an application software tool that reads numeric, waveform, and harmonic data measured with the WT3000 Precision Power Analyzer.
REAR PANEL 䉴 Rear Panel Standard features Optional features Voltage input terminals Current external sensor input terminals Current direct input terminals GP-IB port BNC connector for two-system synchronized measurement Serial (RS-232) port (option/C2) or USB port (PC) (option/C12) Ethernet port(100BASE-TX/10BASE-T) (option/C7) VGA port (option/V1) D/A output (option/DA) Torque and speed input terminals (motor version) CHARACTERISTICS 䉴 Example of basic characteristics showin
Precision Power Analyzer WT3000 ACCESSORIES 䉴 Related products Current Sensor Unit Current Transducer Clamp on Probe 758917 758921 751521,751523 Current Output Current Sensor Unit DC to 100 kHz/600 Apk CT60/CT200/CT1000 Current Sensors 751552 Current Output Current Clamp on Probe AC 1000 Arms (1400 Apeak) • DC~800 kHz/60 Apk, DC~500 kHz/200 Apk, DC~300 kHz/1000 Apk • Wide dynamic range: ±0-1000 A(DC) /1000 A peak (AC) • Wide measurement frequency range: DC and up to 800 kHz • High-precision fund
SUPPORTS Crest Factor 6 The crest factor is the ratio of the waveform peak value and the RMS value. Crest factor = (CF, peak factor) waveform peak RMS value waveform peak RMS value When checking the measurable crest factor of our power measuring instruments, please refer to the following equation.
Precision Power Analyzer WT3000 WT3000 SPEC ±3/range × f% of range or less. However, 3% or less. Current direct input and current sensor input: ± (max. range/range)× 0.001 × f% of range or less. However, 0.01% or more. The units of f are kHz. The max. range within equations is 30 A or 2 A or 10 V. Select OFF, 500 Hz, 5.5 kHz, or 50 kHz. Select OFF, or ON Simultaneous voltage and current conversion and 16-bit resolution. Conversion speed (sampling rate): Approximately 5 µs.
Accuracy Voltage/current [Conditions] *These conditions are all accuracy condition in this section. Temperature: 23±5°C, Humidity: 30 to 75%RH, Input waveform: Sine wave, Common mode voltage:0 V, Crest factor: 3, Line filter: OFF, λ (power factor): 1, After warm-up. After zero level, compensation or range value change while wired. f is frequency (kHz), 6month 30A input element, 2A input element (500mA, 1A, 2A range), Voltage input Voltage/current DC 0.05% of reading+0.
Precision Power Analyzer WT3000 Functions Measurement method Crest factor Digital multiplication method 3 or 6 (when inputting rated values of the measurement range), and 300 relative to the minimum valid input. However, 1.6 or 3.2 at the maximum range (when inputting rated values of the measurement range), and 160 relative to the minimum valid input. Measurement period Interval for determining the measurement function and performing calculations.
Integrated Value Revolution signal, torque signal • When revolution and torque signals are DC voltage (analog input) Connector type Insulated BNC connector Input range 1 V,2 V,5 V,10 V,20 V Effective input range 0%–±110% of measurement range Input resistance Approximately 1 MΩ Continuous maximum allowed input ±22 V Continuous maximum common mode voltage ±42 Vpeak or less Accuracy ±(0.1% of reading+0.1% of range) Temperature coefficient ±0.
Precision Power Analyzer WT3000 Accuracy Frequency Measurement range Display update • When the line filter (500 Hz) is ON Voltage and Current Frequency ±(reading error + measurement range error) 0.7% of reading + 0.3% of range 0.1 Hz f 10 Hz 0.7% of reading + 0.3% of range 10 Hz f 30 Hz 0.7% of reading + 0.05% of range 30 Hz f 66 Hz Power ±(reading error + measurement range error) 1.4% of reading + 0.4% of range 1.4% of reading + 0.4% of range 1.4% of reading + 0.
• FFT Function Specifications Item Computed source Specifications Voltage, current, active power, and reactive power of each input element. Active power and reactive power of an Σ wiring unit. Torque and speed signals (analog input) of motor input (option).
Precision Power Analyzer WT3000 Voltage Fluctuation/Flicker Measurement (/FL optional) • Normal Flicker Measurement Mode Item Specifications Measurement Items dc Relative steady-state voltage change (Measurement Functions) dmax Maximum relative voltage change d(t) The time during which the relative voltage change during a voltage fluctuation period exceeds the threshold level The maximum value within a observation period is displayed for the items above.
DESCRIPTION Automatically select the appropriate calculation for each data updating period AC signals have waveforms that fluctuate repeatedly when viewed instantaneously. Therefore, measuring the power values of AC signals requires averaging for each period in a repeated interval, or averaging the data of several periods using a filtering process. The WT3000 automatically selects the appropriate calculation method (one of the above two methods) based on the data updating period.
Application Software Model and Suffix Codes Model 760122 Precision Power Analyzer WT3000 Suffix Codes Model 760301 760302 760303 760304 Element number -01 -02 -03 -04 -10 -20 -30 -40 -SV Version -MV -D Power cord -F -R -Q -H -N Options /G6 761922 Description WT3000 1 input element model WT3000 2 input elements model WT3000 3 input elements model WT3000 4 input elements model 2A input element Standard Version Motor Version UL/CSA standard VDE standard AS standard BS standard GB standard NBR standard
