Event Records - GE L30 Instruction Manual

CHAPTER 6: ACTUAL VALUES
Fault type V
loop
CA, CAG VC – VA
ABC Average of AB, BC, CA loop impedances
Where VA, VB, VC are phase voltage phasors in secondary volts; IA, IB, IC are current phasors in secondary amps, I0 is the
zero sequence current phasors in secondary amps; and IG is the ground current from the parallel line scaled to the source
phase CT in secondary amps. Z0/Z1 is the zero sequence impedance to positive sequence impedance ratio, and Z0M/Z1 is
mutual zero sequence impedance to positive sequence impedance ratio.
VTs of the
FAULT REPORT 1 SOURCE
connected VT to display the loop impedance and fault resistance for single phase-to-ground faults.
For the application of partially parallel circuits and in the case of single phase-to-ground faults, the reported fault
resistance and fault loop impedance may not be accurate even the compensation method is applied.

6.5.2 Event records

ACTUAL VALUES  RECORDS  EVENT RECORDS
 EVENT RECORDS

The event records menu shows the contextual data associated with up to the last 1024 events, listed in chronological
order from most recent to oldest. When all 1024 event records have been filled, the oldest record is removed as a new
record is added. Each event record shows the event identifier/sequence number, cause, and date/time stamp associated
with the event trigger. See the
Only major output operands generate events, not every operand. Elements that assert output per phase, for example, log
operating phase output only without asserting the common three-phase operand event.
See also the system log (syslog) information in the previous chapter.
The event records are also viewable in the software and in a web browser. The figure shows the event records in the
software. To view them in a web browser, enter the IP address of the device.
L30 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
I
loop
IC - IA
must be connected in Wye or
EVENT: XXX

XXX

EVENT: 3

POWER ON
EVENT: 2

POWER OFF
EVENT: 1

EVENTS CLEARED

COMMANDS  CLEAR RECORDS
must be set correctly for the Delta
VT SUBSTITUTION
Date and time stamps
EVENT 3
 
DATE: 2000/07/14
EVENT 3

TIME: 14:53:00.03405
menu for clearing event records.
RECORDS
6
6-25