Block Autoreclose Logic - GE MiCOM P40 Agile Technical Manual

Application Notes
MiCOM P40 Agile P442, P444
When autoreclosure is not required for multiphase faults, DDB signals '2Ph Fault' and '3Ph
Fault' can be mapped via the PSL in a logic OR combination onto input DDB: 'BAR' (Block
internal AutoReclose, section 5.9.1.5). When blocking is only required for a three phase fault,
the DDB signal '3Ph Fault' is mapped to 'BAR' alone. Three phase faults are more likely to
be persistent, so many utilities may not wish to initiate autoreclose in such instances.
The next diagram shows the block autoreclose logic.
bit setting
Autoreclose lockout / Block A/R
00 At T2
01 At T3
02 At Tzp
03 LoL Trip
04 I>1 Trip
05 I>2 Trip
06 V<1 Trip
07 V<2 Trip
08 V>1 Trip
09 V>2 trip
0A IN>1 Trip
0B IN>2 Trip
0C Aided D.E.F
Trip
0D Zero. Seq.
Power Trip
0E IN>3 Trip
0F IN>4 Trip
10 PAP Trip
Figure 119: Block autoreclose logic
DDB bit
T2 11
T3 12
tZp 13
Loss. Load Trip 14
I>1 Trip 15
I>2 Trip 16
V<1 Trip 17
V<2 Trip 18
V>1 Trip 19
V>2 Trip 1A
IN>1 Trip 1B
IN>2 Trip 1C
DEF Trip A C 1D
OR DEF Trip B 1E
OR DEF Trip C Autoreclose lockout / Block A/R 2
ZSP Trip 00
01
IN>3 Trip 02
IN>4 Trip 03
PAP Trip A 05
OR PAP Trip B
OR PAP Trip C
setting DDB
Thermal Trip Trip Thermal
I2>1 Trip I2> Trip
I2>2 Trip I2>2 Trip
I2>3 Trip I2>3 Trip
I2>4 Trip I2>4 Trip
VN>1 Trip VN>1 Trip
VN>2 Trip VN>2 Trip
At Tzq tZq
V<3 Trip V<3 Trip
V<4 Trip V<4 Trip
V>3 Trip V>3 Trip
V>4 trip V>4 trip
I<1 Trip I<1 Block
I<2 Trip I<2 Block
F<1 Trip F<1 Trip
F<2 Trip F<2 Trip
F<3 Trip F<3 Trip
F<4 Trip F<4 Trip
F>2 Trip F>2 Trip
P44x/EN AP/Hb6
(AP) 5-157