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6 F 2 S 0 8 5 7
The number of records stored depends on the post-fault recording time. The approximate
relationship between the post-fault recording time and the number of records stored is shown in
Table 3.4.2.
Note: If the recording time setting is changed, all previously recorded data is deleted.
Table 3.4.2 Post Fault Recording Time and Number of Disturbance Records Stored
Model 0.1s 0.5s 1.0s 1.5s 2.0s 2.5s 3.0s
Frequency
101,102 50Hz 40 34 20 15 11 9 8
60Hz 40 28 17 12 9 8 6
201,202 50Hz 40 25 15 11 8 7 6
203,204 60Hz 40 21 13 9 7 6 5
Disturbance recording is initiated when overcurrent elements operate, a tripping signal is output,
2F or 5F element operates or external event signals are input. Three phase overcurrent elements
1OCP-S to 3OCP-S are applied to the line CTs and neutral overcurrent elements 1OCP-G to
3OCP-G to the neutral CTs.
The initiations are blocked by the scheme switches.
Settings
The elements necessary for starting disturbance recording and their setting ranges are shown in the
table below.
Element Range Step Default(**) Remarks
1OCP-S 0.10 - 20.00(*) 0.01 Phase overcurrent element
2OCP-S 0.10 - 20.00(*) 0.01
3OCP-S 0.10 - 20.00(*) 0.01
1OCP-G 0.05 - 20.00(*) 0.01 Neutral overcurrent element
2OCP-G 0.05 - 20.00(*) 0.01
3OCP-G 0.05 - 20.00(*) 0.01
Scheme switch
TRIP1 to TRIP5
1OCPS to 3OCPS
1OCPG to 3OCPG
2F
5F
EVENT1 to EVENT3
ON/OFF Initiating disturbance record
by tripping
by phase overcurrent element
by neutral overcurrent element
by 2F element
by 5F element
by external event
(*) : Multiplier of CT secondary rated current
(**): Default settings are dependent on the models. See Appendix H.
Recording
time