GE PQM II - Page 167

CHAPTER 6: MONITORING
PQMII POWER QUALITY METER – INSTRUCTION MANUAL 6–29
The duration and average level are recorded in sub-menus as shown below.
Sub-Menus
PATH: ACTUAL VALUES Ö A3 POWER ANALYSIS ÖØ VOLTAGE DIST... Ö 1(500): <DIST_TYPE>
The DURATION is the length of time of the disturbance. If the disturbance is either a sag or a
swell the duration will be recorded in cycles with a maximum possible value of 1 minute
(3600 cycles at 60Hz).
The
VOLTAGE LEVEL represents the average level in volts for the disturbance.
Note
The voltage disturbance recorder is independent from the event recorder. The alarm
events will record normally as per the conditions set within the
S4 ALARMS ÖØ CONTROL
settings menu, regardless whether the voltage disturbance recorder is enabled or of
the sag/swell level.
If an undervoltage/overvoltage alarm occurs, it is immediately recorded as an event (if
enabled). On the other hand, the voltage disturbance is recorded, if enabled, once the
voltage level returns to nominal and the condition is complete. As a result, the time
recorded in the event recorder is the start time of the alarm condition, while the time
recorded in the disturbance recorder is the end time of the condition.
1: Vcn SAG
12:00:00am 01/01/03
1 DURATION:
65 cycles
MESSAGE
1 VOLTAGE LEVEL:
4125 V