Name
Range
Step Default
Description
Actmode
0: Current
only
1: DO only
2: Signals
only
3: Current
and DO
4: Current or
DO
5: Current
and signals
6: Current or
signals
7: Signals
and DO
8: Signals or
DO
9: Current or
DO or
signals
10: Current
and DO and
Signals
-
0:
Current
only
Selects the operating mode. The mode can be dependent on current
measurement, binary signal status, output relay status ("DO"), or a combination
of the three.
Table. 5.3.6 - 59. Pick-up settings.
Name
Range
Step
Default
Description
I
set
0.01…40.00×I
n
0.01×I
n
0.20×I
n
The pick-up threshold for the phase current measurement. This setting
limit defines the upper limit for the phase current pick-up element.
I0
set
0.005...40.000×I
n
0.001×I
n
1.200×I
n
The pick-up threshold for the residual current measurement. This setting
limit defines the upper limit for the phase current pick-up element.
The pick-up activation of the function is not directly equal to the START signal generation of the
function. The START signal is allowed if the blocking condition is not active. There is no delay between
the activation of the monitored signal and the activation of the pick-up when using binary signals.
Read-only parameters
The relay's
Info page displays useful, real-time information on the state of the protection function. It is
accessed either through the relay's HMI display, or through the setting tool software when it is
connected to the relay and its Live Edit mode is active.
Table. 5.3.6 - 60. Information displayed by the function.
Name
Range
Description
CBFP LN
behaviour
1: On
2: Blocked
3: Test
4: Test/
Blocked
5: Off
Displays the mode of CBF block.
This parameter is visible only when
Allow setting of individual LN mode is enabled in
General menu.
CBFP condition
0: Normal
1: Start
2: ReTrip
3: CBFP On
4: Blocked
Displays status of the protection function.
A
AQ
Q-T256
-T256
Instruction manual
Version: 2.06
© Arcteq Relays Ltd
IM00028
67
Summary of Contents for AQ-T256
Page 1: ...AQ T256 Transformer protection IED Instruction manual...
Page 2: ......
