Operation
M12179-82 v5
The operation of Disturbance report function DRPRDRE has to be set
On
or
Off
. If
Off
is
selected, note that no disturbance report is registered, and none sub-function will operate
(the only general parameter that influences Event list (EL)).
Operation
=
Off
:
• Disturbance reports are not stored.
• LED information (yellow - start, red - trip) is not stored or changed.
Operation
=
On
:
• Disturbance reports are stored, disturbance data can be read from the local HMI and from
a PC using PCM600.
• LED information (yellow - start, red - trip) is stored.
Every recording will get a number (0 to 999) which is used as identifier (local HMI, disturbance
handling tool and IEC 61850). An alternative recording identification is date, time and
sequence number. The sequence number is automatically increased by one for each new
recording and is reset to zero at midnight. The maximum number of recordings stored in the
IED is 100. The oldest recording will be overwritten when a new recording arrives (FIFO).
To be able to delete disturbance records,
Operation
parameter has to be
On
.
The maximum number of recordings depend on each recordings total
recording time. Long recording time will reduce the number of recordings to
less than 100.
The IED flash disk should NOT be used to store any user files. This might cause
disturbance recordings to be deleted due to lack of disk space.
16.6.3.1 Recording times
M12179-88 v4
The different recording times for Disturbance report are set (the pre-fault time, post-fault
time, and limit time). These recording times affect all sub-functions more or less but not the
Event list (EL) function.
Prefault recording time (
PreFaultRecT
) is the recording time before the starting point of the
disturbance. The setting should be at least
0.1
s to ensure enough samples for the estimation
of pre-fault values in the Trip value recorder (TVR) function.
Postfault recording time (
PostFaultRecT
) is the maximum recording time after the
disappearance of the trig-signal (does not influence the Trip value recorder (TVR) function).
Recording time limit (
TimeLimit
) is the maximum recording time after trig. The parameter
limits the recording time if some trigging condition (fault-time) is very long or permanently set
(does not influence the Trip value recorder (TVR) function).
Post retrigger (
PostRetrig
) can be set to
On
or
Off
. Makes it possible to choose performance
of Disturbance report function if a new trig signal appears in the post-fault window.
1MRK 511 358-UEN A Section 16
Monitoring
393
Application manual
To Next Page
Loading...
