YOKOGAWA日本橫河CW500電能質(zhì)量分析儀是一款使用安全電流鉗的現(xiàn)場功率測量儀器，具有較高的可操作性，其功能已經(jīng)超越了目前的CW240鉗式功率計。

特征

通過YOKOGAWA功率計可實現(xiàn)節(jié)能：

功率的測量與記錄：

• 一臺儀器即可實現(xiàn)電能分析和電能質(zhì)量控制同時測量3路電壓輸入

• 2路直流電壓輸入

• 4路電流探頭輸入

• 瞬時/評價/值/最小值列表或電壓/電流/功率/功率因素/相位角/相位超前電容計算

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• 測量前的檢測正確接線與設(shè)置

• 自動識別電流探頭類型

• 可分別顯示電壓，電流的矢量相位差

測量功能：

• 臨時電力故障的測量

• 連續(xù)電流故障測量

• 諧波閃爍測試

• 三相電路電壓、電流不平衡率測量

• CW500Viewer可以PC通訊，可保存積分功率，電能質(zhì)量數(shù)據(jù)，主要單元設(shè)置數(shù)據(jù)等

• 可與外置SD內(nèi)存卡，USB通訊，藍(lán)牙通訊

• 趨勢圖屏幕

The Yokogawa CW500 is a portable power meter that utilizes current clamp-on probes, navigation screens and quick start guides to enable user friendly power consumption and power quality measurements in the field that conform to IEC6100-4-30 Class S.

FEATURES

• Power Measurement and Logging

• Power Quality Measurement

• User Support

• Analysis of Data and Report Generation

Power Measuring and Logging

• Simultaneously measures 3 CH Voltage input, 4 CH current clamp probe input, 2 CH DCV input.

• Instantaneous/Average/Maximum/Minimum value list or trend graph screen of Voltage/ Current/Power/Power factor/Phase Angle/Phase Advanced Capacitance Calculation.

• Integration Value of Active/ Reactive/Apparent Energy are each displayed for consumption and generation.

• Demａnd monitoring which displays screens of present power consumption compared to aimed demａnd power values.

User Support

Quick Start Guide Function:

• The Quick Start Guide Function supports correct wiring and setting before measuring.

• The Quick Start Guide Function automatically recognizes the type of current clamp probe.

Vector Display:

• The Vector Display indicates Voltage and Current phase difference and values between input channels of voltage and current.

• The Vector Display checks whether the wiring is correct or not.

Power Quality Measuring

Measure Temporary Malfunctions of the Power Line

• The CW500 captures temporary malfunction phenomena of the power line that can cause malfunction or destruction of devices due to voltage swell, voltage dip, interruption, transient voltage over, and inrush current by using a high sampling rate of 24 µs and RUS calculation.

• Event data contains the type of malfunction, occurred time or occurrence finish time, measured value and waveform of voltage and current of all channels for approx. 200 ms period.

• This measurement method conforms to IEC standard 61000- 4-30 Class S

Measure Continuous Malfunction of the Power Line

Harmonics

• Measure and display graphs and lists of up to the 50th Harmonic components of voltage, current, and power for each phase and total.

Flicker

• Measures 1-minute flicker (Pst, 1 min), short flicker, (Pst) and long flicker (Plt).

Unbalance rate

• Displays voltage and current unbalance rate on 3 phase wiring.

CW500Viewer (Included PC software)

• Automatically display the graphical and report data by clicking on the file on the PC display.

• Manage multiple settings of the unit.

• Measure in real-time using USB communication.

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).

SOFTWARE

Software for Analysis and Setting (Free) CW500Viewer

Data analysis, data reporting, making a setting file and doing a real time measurement can be easily done with the CW500Viewer.

The data can be transferred by SD memory card, USB communication or Bluetooth communication (for USA, Canada, Japan only).

The graph and lists are created by clicking on the data file.

• The graph and lists of the recorded data file are created by clicking on the desired data file. They can be displayed and copied on a clipboard so it can be used on other software such as Word or Excel.

• The time axis and measure axis can be zoomed in or out easily. With this capability, micro and macro changes can be displayed.

• Waveforms of power quality events (Voltage swell, voltage dips, voltage interrupt, voltage transient, (over and inrush current) which are recorded by 200 ms period can be displayed and printed.

• The integrated data can be added on one graph, enabling the whole energy integration data to be displayed.

• Integrated energy data can be scaled into CO2 or the crude oil value.

Settings management

• Setting data can be read out from and to the main unit via SD memory card, USB communication cable or Bluetooth communication (*1).

• Setting data can be easily edited, saved and managed.

Real time measurement

• Real time measurement can be performed on up to 2 units simultaneously via USB communication or Bluetooth communication (*1)

System Requirements

FUNCTIONS

Power Measuring

Power line and Input Channel: 3 CH Voltage, 4 CH for Current Clamp Probe.

1P2W (up to 4 systems), 1P3W (up to 2 systems), 3P3W 2current (up to 2 systems), 3P3W 3current, 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 2 GB 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.

Various Measuring Screens

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 recording

List Display

Items of measured values can be selected with the curser key.

Zoom 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 Display

List of active, apparent, reactive by consumption or generation.

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 change on specific period

Graph display of whole demａnd trend

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

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

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).

Note: This is not available for EV region.

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

4 system load measuring

Maximum of 4 systems are capable for 1 phase 2 line wiring.

Maximum of 2 systems are capable for 1 phase 3 line or 3 phase 3 line wiring.