YOKOGAWA WT3002E User Manual page 213

12.3 Setting the Measurement Conditions
12-12
• Edition Number of IEC 61000-3-3
You can select the edition number of IEC 61000-3-3.
• Edition 2.0
• Edition 3.0
IEC 61000-3-3 specifies the voltage fluctuation and flicker.
• Measured element
Set the element on which to measure the voltage fluctuation and flicker. The installed
elements are displayed as possible targets.
• Rated Voltage
You can select the assignment method of the rated voltage.
• Auto
Automatically retrieves the measured voltage at the start of the voltage fluctuation
and flicker measurement as the rated voltage.
• Manual
You can set the rated voltage in the range of 0.01 to 999.99 V.
• Measurement Target Frequency
You can set the measurement target frequency to 50 Hz or 60 Hz.
Set the measurement source frequency appropriately as the transfer function of the
flicker meter and other parameters change accordingly.
Note
The limit is defined only for 230 V/50 Hz. It is not defined for others.
If the measurement method is set to Flicker (normal flicker measurement), you must set
the measurement target voltage (IEC 61000-4-15 Ed2.0 only), single observation period,
measurement count, and steady-state range.
• Measurement Target Voltage (IEC 61000-4-15 Ed2.0 Only)
You can set the measurement target voltage to 230 V or 120 V.
Set the measurement source voltage appropriately as the transfer function of the
flicker meter and other parameters change accordingly.
• Single Observation Period
You can set the single observation period of short-term flicker value Pst in unit of
minutes and seconds in the following range.
00:30 to 15:00 (only even values can be specified for the seconds)
• Measurement Count
You can set the measurement count of short-term flicker value Pst in the range of 1 to 99.
• Steady-State Range (dmin: Allowable Range of Relative Voltage Change
to Be Considered Steady-State)
You can set steady-state range dmin in the range of 0.10 to 9.99%.
Note
You can change the measurement conditions only when the flicker measurement status is
Reset.
IM WT3001E-51EN