Yokogawa CW500 - Power Quality Analyzer
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✅ Power Measure and Logging & Power Quality Measuring
✅ Simultaneously measures 3 CH Voltage input, 4 CH current clamp-on probe input, 2 CH DCV input
✅ Displays value list or trend graph screen of Instantaneous/ Average/Maximum/Minimum of Voltage/Current/Power/Power factor/Phase Angle/Phase Advanced Capacitance Calculation and DCV input
✅ Integration Value of Active/ Reactive/Apparent Energy is each displayed by consumption and generation
✅ Demand value can be monitored by screens of present power consumption compared to aimed demand power value
Hotline: 0911.159.019
Email: sales@thietbidochuyendung.com
Power Quality Analyzer
Yokogawa CW 500
Yokogawa CW500 is a portable power meter that utilizes current clamp-on probes, easy to use navigation screens and bluetooth and SD cards for communication and data logging. These features enable user-friendly power consumption and power quality measurements in the field that conform to IEC61000-4-30 Class S. This standard dictates that two measuring instruments of similar rating must measure within some percentage of each other when exposed to the same signal
Utilities and substations contain large arrays of transformers, generators and electrical distribution networks. To maintain the health and safety of such infrastucture, a reliable power quality analyzer is needed. This power quality analyzer should be capable of not only logging single to multi-phase power, but also trend and monitor anomalies in the power system such as voltage sags, swells and dips, as well as flicker, inrush current, and demand changes. The CW500 power quality monitor is perfectly suited for this task due to it.
Application Note
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Power Measuring and Logging
Power Measuring and Logging
Power Quality Measuring Measure Temporary Malfunctions of the Power Line
Measure Continuous Malfunction of the Power Line
CW500Viewer (Included PC software)
Types of data: Integrated power data, power quality event data, main unit setting data, and screen capture data. Memory card and interface: SD memory card, USB communication, Bluetooth communication (available for US, Canada and Japan only) |
Power Measuring Function
Power line and Input channel
3 CH Voltage, 4 CH for Current Clamp Probe. 1P2W (up to 4 systems), 1P3W (up to 2 systems), 3P3W2current (up to 2 systems), 3P3W3current, 3P4W. Power measuring item:
Instantaneous, average, maximum, and minimum values for each setting period Voltage/Current/Power (Active, Reactive, Apparent)/Power Factor/ Phase Angle/Frequency/Calculated Phase Shift Capacitance/DC voltage value 2 CH. Integration Value: Energy (active, reactive, apparent), Demand (list or graph display of change in a specific period and as a whole) Recording Interval: Period 1/2/5/10/15/20/30 second, 1/2/5/10/15/20/30 minute, 1 hour/2 hours Recording method: Manual | Time | Period Estimated Recording: Length with 2GB SD card
The recording length shortens according to the number of power quality events. Only the included SD memory card or dedicated SD memory card is guaranteed Demand measuring Demand is the average power value of a specific period (usually 30 minutes). The contract with the power supplier conditionally concerns the maximum average power value between a period for the consumption fee. This function supports how to maintain within the target consumption by monitoring the estimated demand value to the setting rate with the maximum demand value. List of Demand Value
Graph Display of chage on specific period
Graph Display of whole demand trend
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Various Measuring Screen List display, zoom display by 4 or 8 divisions, trend graph display, integration value display for energy, demand list display of value, demand graph display for change of period, demand graph display for whole recordin List DisplayHems of measuring values can be selected with position Zom Display
Zoom display can be selected by 4 or 8 divisions Trend Graph
Trend graph of voltage/ current/power/power factor/frequency/ advanced phase condenser external DC voltage. Energy DisplayList of active, apparent, reactive by consumption or generation. |
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Analysis and Reporting of recorded data
Analysis and reporting is enabled by simply clicking on the desired data on the software screen. Analysis can be viewed by trend graph, overage, maximum and minimum value of voltage current, power, and power factor. Report generating can be set daily by daytime, nighttime, working day, or off day. It can also be set on a monthly period based on daytime or nighttime, working day or off day. Additionally, energy data to quantify into crude oil barrels or CO2 can also be converted.
Trend analysis graph |
Sample of report |
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Power Quality Function
Short period power line malfunctions such as voltage swells, dips, interruptions, transients, over or inrush currents, or long periods of harmonic distortion/flicker may damage or reset your devices. The CW500 helps to identify each of those short period malfunctions by recording occurrence time, occurrence finish time and waveforms. Additionally there is a digital output on occurrence. Long period malfunctions can be analyzed by harmonics, flicker, waveform, or by checking on the unbalance rate calculation for a 3 phase measurement. All data can be finalized into a report format with the included software. The CW500 conforms to the IEC standard of 61000-4-30 Class S.
User Support Function
User Friendly
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Quick start guide and automatic type of clamp recognition The quick start guide will show on-start measuring and how to wire and set the range before measuring. The automatic clamp detection will insure the settings are correct. Start of guidance
PUSH the “START/STOP” key. Select “Quick start guide”. Select recording item. Wiring Select the wiring and the appropriate connection diagram will be displayed. Connect accordingly. Wiring check/self diag./self id.
Wiring check, self-check and the type of clamp is automatically detected and the results displayed. If NG is displayed, the detail can be confirmed by pressing the “ENTER” key |
Recording setting
Set the recording interval time and the recording time or period. Power supply from measuring line
Power (under 240 VAC) can be supplied by using the power supply adapter (sold separately). Leakage current measuring
The external magnetic field effect is 0.002 A or less, at 400 A/. Yokogawa’s proprietary technology has achieved a magnetic field impact amount of 30 ppm even in adjacent power lines (at 100 A). Below is an example of how to measure a neutral line of 3 phase 4 line. Multiple line measuring Maximum of 4 systems is capable for 1 phase 2 line Maximum of 2 systems is capable for 1 phase 3 line or 3 phase 3 line. |
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Technical Datasheet
Specification | Brochure | Manual Instruction
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