Figure. 7.1 - 139. AQ-F201 application example with function block diagram.
Monitoring functions
THD
31st
CTS
CBW
Circuit
breaker
wear
DR
Disturbance
recorder
Device I/O
DI
3
DO
5+1
CT
3 (IL)
2 (I0)
AQ-F201
Control functions
OBJ
CLPU
Cold load
pick-up
SOTF
SGS
1...8
Switch-on-
to-fault
Protection functions
I>
50/51
(3)
I0>
50N/51N
(3)
CBFP
50/52BF
(1)
TF>
(1)
49F
Ih>
(1)
50H/51H
/68H
(1)
I2>
46/46R
/46L
Current-based
7.2 Application example and its connections.
This chapter presents an application example for the feeder protection IED.
As can be seen in the image below, the example application has connected the three phase currents
and the residual current (I01). Additionally, the digital inputs are connected to indicate the breaker
status, while the digital outputs are used for breaker control.
A
AQ
Q-F201
-F201
Instruction manual
Version: 2.04
213