Power quality analyzer CW500

YOKOGAWA CW500 power quality analyzer is a portable field power measurement instrument using current clamp, which is suitable for power consumption measurement and power quality analysis of power supply lines. Capture short duration power failures in accordance with IEC 61000-4-30 Class S standard.

Features
▶Power measurement and recording
• Simultaneous measurement of 3-channel voltage input, 4-channel current clamp input and 2-channel DC voltage input.
• Instantaneous value, average value, maximum/minimum value of voltage, current, power, power factor, phase angle, phase lead capacitor and DC voltage input can be displayed. The display mode can be selected from value list or trend chart.
• Displays the integral quantities of active power, reactive power, apparent power consumed and generated, respectively.
• By comparing the power consumption with the target demand, the actual power demand can be monitored on the instrument body screen.

▶User Support
Getting Started Guide Features:
• The Getting Started Guide feature ensures that the wiring and instrument setup performed prior to testing is safe and reliable.
• Automatic identification of the type of current clamp.
Vector display:
• The phase difference between voltage and current, and the value between voltage and current input channels can be displayed.
• Confirm proper wiring.

▶power quality measurement
Measurement of temporary faults on supply lines
• Voltage swell, voltage sag, voltage interruption, instantaneous overvoltage, inrush current and other temporary fault phenomena on the power supply line will cause equipment failure or damage to equipment, CW500 can capture such phenomena as events at a high-speed sampling rate of 24μs, and calculate the effective value.
• Event data includes fault type, fault occurrence time or fault end time, measured values, and voltage/current waveforms for all channels with a period of approximately 200ms.
• Measurement method follows IEC 61000-4-30 Class S standard.
Measurement of continuous faults on the supply line
harmonic
• Measure and display the harmonic components and total harmonics of each phase voltage, current, power up to 50 times. The display mode can be selected as a chart or list.
Waveform
• Up to 10 or 12 voltage/current waveforms per channel can be displayed.
imbalance rate
• Displays the voltage unbalance rate and current unbalance rate of the 3-phase wiring.

▶Data analysis and report creation
CW500Viewer (with PC software)
• Click on the file data on the screen to automatically create charts and reports.
• Unified management of host setting data.
• Real-time measurement via USB communication.
Data Type
• Power data, power quality event data, host setup data, screen capture data.
Memory card and interface
• D card, USB communication, Bluetooth communication (US, Canada, and Japan only).

Function
Power measurement
• Connection mode and input channel: 3-channel voltage, 4-channel current clamp
• Power measurement items: instantaneous value, average value, maximum value and minimum value
Recording period: 1/2/5/10/15/20/30 seconds, 1/2/5/10/15/20/30 minutes, 1hour/2 hours
• Recording method: manual, time setting, cycle setting
• Record length valuation (2GB SD card)
• Measurement screen
• Electricity demand measurement

Analysis and reporting of recorded data
By clicking the desired data on the software screen, you can analyze and create a report.
The average value, maximum value and minimum value of voltage, current, power and power factor can be analyzed by trend graph. You can create reports by day, night, weekday, day off, or month. In addition, the electrical energy data can also be converted into crude oil values and CO2.

User Support Features
• User-friendly interface • Getting Started Guide and Automatic Identification Current Clamp • Start Wizard • Wiring • Line Check/Self-Check/Self-Identification • Record Setup • Power Supply from Measurement Circuit • Leakage Current Measurement • Multiplex Measurement • 4 System Load Measurement

Application
▶Power Measurement Power Quality Check
Check the power quality of the main power supply lines of the plant system control and devices
• Confirm the quality of power supply lines for plant system controls and devices.
• Simultaneous measurement of power consumption trends and consideration of power saving measures.
CW500 can not only continuously measure harmonics, capture power supply line faults, record fault occurrence time with waveforms, but also measure power and neutral phase leakage current.
In addition, you can also confirm the operation of the device when the signal is connected to the DCV input channel.

▶Inspection of power supply line
To confirm the power saving effect and the introduction of LED lighting
By measuring and comparing the electricity consumption before and after the use of LED lighting, the power saving effect of the introduction of LED lighting is confirmed.
Check the power consumption of the line drive pump
In the liquid production line, many drive pumps will be applied to the frequency converter. Need to confirm the power consumption before and after using the drive pump.
With PC software, multiple drive pumps can be measured with a variety of settings, making measurement easy and efficient. In addition, check the quality of the power supply line to ensure the safety of the work after using the new inverter.