Fault And Disturbance Recording; Setting Group Switch Function - NR Electric PCS-9611 Instruction Manual

5.6 Fault and Disturbance Recording

This relay provides the fault and disturbance recording facility for recording the sampled values of
the fault and disturbance wave when a fault is occurred in the power system. The 64 latest fault
and disturbance records can be recorded in this relay, and each wave record includes up to 10000
fault sampled points (24 sampled points per cycle).
The current and voltage sampled values, the binary input signa ls and the protection operation
signals are contained in the fault and disturbance wave record, and the analog value sampling rate
is 24 points per cycle. The format of the wave complies with the "COMTRADE" standard.
There are several conditions which can trigger the fault and disturbance recording of this relay.

The fault detector picks up.

Anyone of the protective elements operates.

Any shot of the auto-recloser operates.

The binary input [BI_TrigDFR] is energized.
 The submenu "Trig Oscillograph" is executed.
Each waveform includes the wave recording data both before and after the fault. Each trigger
element operation will extend the wave recording time, until the appointed time delay is over after
the trigger element restores, or until the maximum number of wave recording points is reached.

5.7 Setting Group Switch Function

This relay can switch the setting group number if this relay is in normal operation situation. Two
fixed methods for switching the setting group number are described in Section 8.2.6.4. Another
method for changing the setting group number through four special binary inputs can be supported
by this relay, if this function is enabled. Four general binary inputs can be configured as signal
inputs for switching the setting group number through PCS-Explorer configuration tool auxiliary
software. This method only can switch four groups of settings (setting group 1 to 4).
The BI_ChgSG.in_sgx (x: 1~4) is used to change the setting group. When anyone is energized
(status "0" to "1"), the corresponding setting group is put into service. If more than one binary input
is energized (status "0" to "1"), only one setting group is put into service according to the following
priority sequence: group 1, group 2, group 3 and group 4. For example, the setting gro up 1 is in
service now, if the binary inputs [BI_ChgSG.in_sg2] and [BI_ChgSG.in_sg3] are energized at the
same time, the setting group 2 will be put into service. Additionally, if the energized binary input
[BI_ChgSG.in_sgx] (x: 1~4) is not energized any more, that means all the four binary inputs are
not energized, the running setting group will not change.
PCS-9611 Feeder Relay
Date: 2014-04-08
5 Management Function
5-3