9
3. Operation and Configuration
EAFR-101S Arc Point Sensor Relay User Manual
MN026005EN February 2016 www.eaton.com
Figure 6. EAFR-101S Configuration Selection 3.
3.5.1.3 Configuration Selection 3
The EAFR-101S logic Configuration 3 is very similar to
Configuration 2. S2 is used for monitoring the incoming
feeder breaker compartment. S3 monitors the reserve
busbar. S4 monitors the main busbar compartment. The
contact T1 is responsible for tripping the section circuit
breaker. T2 is responsible for tripping the tie circuit breaker.
BI1 and BI2 are responsible for recognizing the incoming cir-
cuit breaker position. BI3 receives over-current information
from the EAFR-110P of the incoming feeder. BI4, BI5, and
BI6 are used for sending light information from the different
location of the busbars. BO1, BO2, and BO3 send arc fault
information to the incoming feeder units and intermediate
units.
Light
Light
Latch
100 ms
150 ms
Non Latch
Light and Current S1:
Light and Current
Configuration Select:
8
7
6
5
4
3
2
1
Table 5. General Trip Logic for the EAFR-101S Standard
Arc Configuration 3.
Tripping Signals Fault
Location
T1
T2
T3
BO1 BO2 BO3
S2
x
x
x
x
x
x
S3
x
x
x
x
S4
x
x
x
x
