7-40
IM CW240E
7.8
Measuring Voltage Quality
(Voltage Dip, Voltage Swell, or
Instantaneous Interruption)
In this section, three items of voltage quality are measured and displayed.
The date and time of the occurrence of the item under test and other information
are displayed (detected/measured).
Setting Range (with Respect to Standard Voltage)
Voltage Quality (Voltage Fluctuation)
0 to 200%
Voltage swell (Swe)
0 to 100%
Voltage dip (Dip)
0 to 100%
Instantaneous voltage interruption (Int)
0 to 10%
Hysteresis common to the three items
can also be set.
Date
Time Item
Channel (element to be measured)
Voltage (rms)
Period of occurrence
of the item under test
●
Display Items
Description
Display Items
Indicates the detection date in MM/DD.
Date
Indicates the detection time in hh:mm:ss.nnn.
Time
Shows the items detected.
Swe : voltage swell
Dip : voltage dip
Int
: instantaneous voltage interruption
Itm
CH
Shows the channel under test.
(If wiring is a Scott connection, _1P or _3P is assigned.)
IO
Indicates the occurrence of an item under test and end of detection.
I
: occurrence of an item under test
O
: end of detection
RMS
Shows the voltage rms of an item under test when it has been detected.
Period
ndicates the period between the detection of an item under test and the
end of detection.
hh : mm : ss.nnn
SEE ALSO
For more information on voltage quality, see Section 6.7, Voltage Quality Settings.