GE MiCOM P40 Agile - Figure 94: Zone Timer Logic

6.3.4.3 ZONE TIMER LOGIC
V02782
Basic Scheme Mode
Standard
&
0
t
tZ1 Gnd. Delay
Zone 1 Start Gnd
0
t
tZ1 Ph. Delay
&
Zone 1 Start Phs
Basic Scheme Mode
Alternative
Z1 G time elapse
Z1 P time elapse
1984
1985
Standard Mode
Alternative Mode
Any Dist Start
1691
&
0
t
tZ1 Gnd. Delay
0
t
tZ1 Ph. Delay
Z1 G time elapse
Z1 P time elapse
1984
1985
Figure 94: Zone timer logic
Note:
Although the diagram above shows zone 1 logic only, the logic for all other zones follows the same principals.
P543i/P545i Chapter 7 - Distance Protection
P54x1i-TM-EN-1 191