9.31
Date Code 20171006 Instruction Manual SEL-400 Series Relays
Reporting
Signal Profiling
SER File Download
You can also download the SER data as a file from the relay. Use a terminal emu-
lation program with file transfer capability. At an Access Level 1 prompt or
higher type FILE READ REPORTS SER.TXT <Enter>. Start the terminal
download routine to store the file on your computer. If you want the Compressed
ASCII file, type FILE READ REPORTS CSER.TXT <Enter>.
Setting SER Points
NOTE: The relay is limited to storing
SER points at a rate of approximately
6000 per hour. Be careful to select
points that will not lead to this rate
being exceeded.
You program the relay elements that trigger an SER record. You can select as
many as 250 elements. These triggers, or points, can include control input and
control output state changes, element pickups and dropouts, recloser state
changes, and so on. Use the SET R command from a terminal, or use QuickSet
Report branch of the Settings tree view to enter SER Points.
Use the text-edit line mode settings method to enter or delete SER elements. To
set an SER element, enter the five items of this comma-delimited string (all but
the first parameter are optional): Relay Word Bit, Reporting Name, Set State
Name, Clear State Name, HMI Alarm.
The relay defaults to the element name when you do not provide a reporting
name. The default names for the set and clear states are Asserted and Deasserted,
respectively. By default, SER Points are not configured for HMI alarm display.
The relay always creates an SER record for power-up, relay enable and relay dis-
able, any group change and settings change, diagnostic restart, and memory over-
flow.
Automatic Deletion and Reinsertion
The SER also includes an automatic deletion and reinsertion function. The relay
automatically deletes oscillating SER items from SER recording. This function
prevents overfilling the SER buffer with “chattering” information. Set Report set-
ting ESERDEL (Enable SER Delete) to Y to enable this function, and select val-
ues for the setting SRDLCNT (SER Delete Count) and the setting SRDLTIM
(SER Delete Time) that mask the chattering SER element. The relay removes an
item from all SER recordings once a point has changed state more than
SRDLCNT times in an SRDLTIM period. Once deleted from SER recording, the
relay ignores the item for a 10 • SRDLTIM period. At the end of this period, the
relay checks the chatter criteria and, if the point does not exceed the criteria, the
relay automatically reinserts the item into SER recording. To see a list of deleted
SER points, use the SER D command.
Signal Profiling
Use the analog signal profiling function to record and track values of as many as
20 analog quantities. This function provides data in CASCII that is compatible to
import directly into applications like spreadsheets. Specify the specific analog
quantities for profiling with the SPAQ Report settings. At the data acquisition
rate of 5 minutes, the relay stores at least 10 days of all analog signals selected
for profiling in nonvolatile memory. The report includes the time of acquisitions
and the magnitude of each selected analog quantity. By defining conditions in the
signal profiling enable SEL
OGIC variable setting (SPEN), you can record analog
values at particular periods or conditions of interest.
To Next Page
Loading...
