Self Monitoring; Breaker Failure; Communications - Eaton EAFR-110F Manual

3. Features
3.5 Indication
Power available LED
● ●
System health LED
● ●
Trip relay activation LED's
● ●
Sensor channel activation LED's
● ●
Overcurrent element pickup LED's
● ●

3.6 Self Monitoring

Complete system self monitoring provides the highest
level of dependability by continuously monitoring all internal
system functions along with external connections between
modules, light sensors or loops and current transformers.
Figure 1. Double Ended Substation Using Point Sensors.
CB
CS:2,A
Eaton Arc Flash Relay
POWER
ERROR
T1 T3
T2
T4
S1 IL1
CB S2 IL2
S3 IL3
S4 Ig
S5
BI1
BI2 HSO1
BO1 HSO2
SET
EAFR-110P
CB
2
Eaton Arc Flash Relay System MN026010EN March 2016 www.eaton.com
CB CB CB

3.7 Breaker Failure

The circuit breaker failure protection (CBFP) is initiated
when a light signal and second trip criteria signal (e.g. over-
current), if applicable, is active for above the set CBFP time
of either 100 or 150 ms. The trip relay T2 and binary output
BO1 will operate after the set time delay.

3.8 Communications

Because of the simplicity of the system, all monitoring is
done through contact outputs on the modules. The advan-
tage of this approach is that cybersecurity issues are non-
existent.
3.9 Configuration
Easy configuration and setup with 4 dip switches to select
one of many different standard sensor channel configura-
tions for Light or Light & Current tripping.
CB
CB
CS:0 CS:0
Eaton Arc Flash Relay Eaton Arc Flash Relay
POWER POWER
ERROR ERROR
T1,T3,T4 T1,T3,T4
T2,T4 T2,T4
S1 S1
S2 S2
S3 S3
S4 S4
S5 S5
BI1 BI1
BI2 BI2
BO1 BO1
SET SET
EAFR-101 EAFR-101
CS:2,A
CB CB CB
CB
Eaton Arc Flash Relay
POWER
ERROR
T1 T3
T2 T4
S1 IL1 CB
S2 IL2
S3 IL3
S4 Ig
S5
BI1
BI2 HSO1
BO1 HSO2
SET
EAFR-110P