Transient Recorder - GE SR345 Instruction Manual

S1 RELAY SETUP

Transient recorder

6–44
Courtesy of NationalSwitchgear.com
REMOTE INPUTS
Range: Disabled, Enabled
Default: Enabled
When set to "Enabled", the event recorder records the events, which occur upon state
change of any programmed remote input.
SETTING DATE/TIME
Range: Disabled, Enabled
Default: Enabled
When set to "Enabled", the event recorder records the event of the changing of the date
and time.
The Transient Recorder contains waveforms captured at the same sampling rate as the
other relay data at the point of trigger. By default, the Transient Recorder captures data for
all analog currents: Winding 1 three-phase currents and ground, and Winding 2 three-
phase currents and ground. Triggering of the transient recorder occurs, when an event is
detected, causing a pickup, trip, dropout, or alarm, any one of which has been "Enabled" to
activate the trigger. The transient recorder trigger may also be activated when any of the
selected trigger inputs 1 to 3 is detected as having "On" status.
The following path is available using the keypad. For instructions on how to use the
keypad, please refer to Chapter 3 - Working with the Keypad.
PATH:
SETPOINTS > S1 RELAY SETUP > TRANSIENT RECDR
BUFFER SETUP
Range: 1 x 192, 3 x 64, 6 x 32
Default: 3 x 64
Each selection from the range is expressed by two numbers; the first identifies the
number of records, whereas the second stands for the number of cycles per record.
TRIGGER MODE
Range: Overwrite, Protected
Default: Overwrite
When the "Overwrite" setting is selected, the new records overwrite the old ones,
meaning the relay will always keep the newest records. In "Protected" mode, the relay
will keep the number of records corresponding to the selected number, only without
overwriting.
TRIGGER POSITION
Range: 0 to 100% in steps of 1%
Default: 0%
This setting indicates the location of the trigger with respect to the selected length of
record. For example at 20% selected trigger position, the length of each record will be
split on 20% pre-trigger data, and 80% post-trigger data.
TRIGGER ON PKP
Range: Off, On
Default: Off
Selection of "Yes" setting enables triggering for the recorder upon Pickup condition
detected from any protection or control element.
345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 6: SETPOINTS