8
3. Operation and Configuration
EAFR-101S Arc Point Sensor Relay User Manual
MN026005EN February 2016 www.eaton.com
Figure 5. EAFR-101S Configuration Selection 2.
3.5.1.2 Configuration Selection 2.
The EAFR-101S logic Configuration 2 is utilized in selec-
tive arc protection solution. 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 a different
location of the busbar. BO1, BO2, and BO3 send arc fault
information to incoming feeder units and the 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 4. General Trip Logic for the EAFR-101S Standard
Arc Configuration 2.
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
x