KYORITSU 6315 Instruction Manual - Manual (Page 70)

KEW6315 Threshold setting for Power quality (Event)
KEW6315 - 68 -
“DIP”: Instantaneous voltage drop
Set the threshold value (rms voltage in one cycle) for dip in percentage of the nominal voltage. The
following selection range varies depending on the selected VT ratio. The preset hysteresis has an
effect on this threshold value.
Selection
0 - 100% against the nominal voltage (90%)
* Default setting is highlighted in gray.
Move the blue highlight to “DIP”. Show the value entry window.*
Set the percentages against the nominal voltage.
“INT”: A short period of power interruption
Set the threshold value (rms voltage in one cycle) for INT in percentage of the nominal voltage. The following
selection range varies depending the preset VT ratio. The preset hysteresis has an effect on this threshold
value. If rms voltages, 10V or less, are used for event detections, ensure that the Int event detection is
enabled. Otherwise, events will not be detected properly.
Selection
0 - 100% against the nominal voltage (10%)
* Default setting is highlighted in gray.
Move the blue highlight to “INT”. Show the value entry window.*
Set the percentages against the nominal voltage.
Example of Dip/ Int detection:
The details are described in “Displaying recorded events” (P. 116).
* A pop-up appears and show the effective range.
* A pop-up appears and shows the effective range.
rms value(1)
rms value(2)
rms value(3) rms value (5) rms value (7) rms value(9)
rms value(4) rms value(6) rms value(8)
Measured
waveform
RMS waveform
Hysteresis
Threshold
(4)
(5)
(6)
(7) (8) (9) (1) (2) (3)