CHAPTER 4: ACTUAL VALUES A3 RECORDS
350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 4–11
Each event is saved with event number, date and time, and contains information such as
per phase current, ground current, either phase-phase voltages (VTs connected in Delta),
or phase-neutral voltages (VTs connected in Wye), and system frequency. The Event
Recorder can be cleared from
ACTUAL VALUES > A3 RECORDS > CLEAR EVENT REC setpoint.
The following tables provide lists of the event types and event causes:
Table 2: Event type
The following table, from the 350 Communications Guide, shows the list of Event Causes.
E778, CONTROL BKR Stat Open 3ph
APPARENT POWER 0.0 kVA
▼
E778, CONTROL BKR Stat Open POWER
FACTOR 0.00
▼
E778, CONTROL BKR Stat Open THERM
CAP PH A 0.0%
▼
E778, CONTROL BKR Stat Open THERM
CAP PH B 0.0%
▼
E778, CONTROL BKR Stat Open THERM
CAP PH C 0.0%
Event Type Display Description
General Events None Events that occur when specific
operation takes place
Pickup Events PICKUP: These are events that occur when a
protection element picks up
Trip Events TRIP: These are events that occur when a
breaker trip is initiated
Alarm and Latched Alarm Events ALARM: These are events that occur when an
alarm is initiated
Control Events CONTROL: These are events that occur when a
control element is activated
Dropout Events DROPOUT: These are events that occur when a
protection element drops out after a
corresponding pickup event
Contact Input Events C. INPUT: These are events that occur when a
contact input changes its state
Virtual Input Events V. INPUT These are events that occur when a
virtual input changes its state
Remote Input Events R. INPUT These are events that occur when a
remote input changes its state
Logic Element Events L. ELEMENT These are events that occur when a logic
element changes its state
Self-Test Warning Events SELF-TEST WARNING These are events that occur when a self-
test warning is detected.
Code Type Definition
FC134 unsigned 16 bits Cause of Event
0No Evnt/Trp ToDate
1Ctrl. Pwr Lost
2 Ctrl. Pwr Applied
3 Date or Time Set
4 Reset
Courtesy of NationalSwitchgear.com
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