YOKOGAWA CW140, User Manual, Page: 13 / 292

1-3
IM CW140-E
Product Overview
1
1.1 Product Overview
On-screen Information (Data Items) Provided by Each Measurement Mode
In each measurement mode, you can measure and calculate on-screen data
items, as shown below.
Rms voltage value (V)
Rms current value (A)
Active power (W)
Reactive power 1 and 2 (Var)
1: With reactive power meter method
2: Without reactive power meter method
Apparent power (VA)
Power factor
Phase angle (
° )
Frequency (Hz)
Three-phase unbalance factor (%) (for three-phase wiring only)
Instant Measure mode
(Chapter 8)
Active power (Wh)
Regenerative power (Wh)
Lagging reactive power (Varh)
Leading reactive power (Varh)
Electric Energy Measure mode
(Chapter 9)
Demand Measure mode
(Chapter 11)
Indication at the End of Demand
• Maximum demand and its time
• Average of respective demands
• Electric energy integrated from the
start to the end of demand
• Average power factor
• Average load factor
Indication During Demand Interval
• Maximum demand and its time
• Demand of one demand period earlier
• Electric energy integrated since the
start of demand
• Electric energy integrated during the
present demand period
• Power factor
• Load factor
• Remaining time of demand interval
Table displays • Voltage/current Rms value, harmonic content, phase angle
Total rms value (All-RMS)
Total harmonic distortion
IEEE (relative to fundamental wave);
CSA (relative to total rms value)
Fundamental wave frequency
• Power Power value, power content, power phase angle
Total power value
Total power factor
Fundamental wave frequency
Graph displays • Voltage/current Rms value, harmonic content, phase angle
• Power
Power value, power content, power phase angle
Harmonics Measure mode
(Chapter 12) Analysis of 1st- through 13th-order harmonics
(The CW140 does not support the Harmonics Measure mode when wired to
2-system load.)
NOTE
The CW140 can show a screen of instantaneous values whether it is in the Electric Energy Mea-
sure mode or the Demand Measure mode.