E-Mon E-PS-A-RTU-N - Manual (Page 95)

Chapter 4 Power
S O F T W A R E E N 5 0 1 6 0 E V A L U A T I O N A N D
R E C O R D I N G
PowerSmart+ Advanced Power Quality Meter 95
Option Range Default Description
Hysteresis, % 0-50.0% 5.0 Defines the hysteresis for the PQ trigger in
percent of the threshold
Enabled Checked
Unchecked
Enables recording PQ events for specific voltage
characteristics
Waveform Log
On Start Checked
Unchecked Checked Enables waveform log when the PQ event starts
On End Checked
Unchecked Unchecked Enables waveform log when the PQ event ends
Log No. 1-2 Specifies the waveform log file used for waveform
recording on the PQ event
The waveform log options allow recording waveforms both at the start and the end of a PQ
event. Since the voltage variations can last from some seconds to minutes, this allows
capturing and analyzing the voltage transitions using short time waveform recording at the
start and at the end of the voltage dip or overvoltage.
You can temporary disable the PQ recorder in your device. To enable or disable the PQ
recorder:
Check or uncheck the Recorder Enabled checkbox.
Send your setting to the device.
Note that disabling the PQ recorder in your meter does not affect the evaluation and
recording of the EN50160 statistics.
Indication of the Power Quality Events
When the PQ recorder detects a power quality fault, it generates the specific internal event
“PQ EVENT” that can be monitored through a control setpoint. The event is asserted all the
time while the fault condition exists. The “PQ EVENT” trigger is used to give a power
quality fault indication via relay contacts, or can be combined using the AND operator with
timer ticks for periodic data recording at the time of the fault to produce voltage trending
charts.
EN50160 Harmonics Limits Setup EN50160 Harmonics Limits Setup EN50160 Harmonics Limits Setup EN50160 Harmonics Limits Setup
This setup allows you to adjust compliance limits for harmonic and interharmonic voltages.
To change the default limits in your device:
Select Memory/Log from the Meter Setup menu, and then click on the EN50160 Harmonics
Setup tab.