34
4. Two Mains with Tie Breaker
Standard Arc Configurations User Manual for Eaton Arc Flash Relays
MN026009EN January 2016 www.eaton.com
4.2.2 Trip And I/O Description
EAFR-110P CS:2,A
Table 34. Trip and I/O Description - EAFR-110P CS:2,A.
Light
Current
(External)
Current
(Internal)
I/O Description
Trip Description
IL, Ig
Current inputs phase IL1, IL2, IL3, and E/F
Ig.
Measuring current for main(s).
Signal outputs: BO1 (Current) to outgoing units EAFR-110P CS:2,A input BI1.
BI1
Binary input 1.
Signal inputs: Current from main unit EAFR-110P CS:2,A output BO1.
S1
Sensor channel 1.
Monitoring incoming cable compartment.
Trip criteria: Light only.
Trip outputs: T1 (main CB), T2 (upstream CB [HV side]), T4 (trip alarm).
S2
IL, Ig
Sensor channel 2.
Monitoring incoming circuit breaker com-
partment.
Trip criteria: C Light.
Trip outputs: T1 (main CB), T2 (upstream CB [HV side]), T3 (tie breaker), T4
(trip alarm).
Signal outputs: HSO2 (MT) to outgoing units EAFR-101 CS:0 input BI2.
BI1
S3
IL, Ig
Sensor channel 3.
Monitoring busbar compartment.
Trip criteria: C Light.
Trip outputs: T1 (main CB), T3 (tie breaker), T4 (trip alarm).
Signal outputs: HSO2 (MT) to outgoing units EAFR-101 CS:4 input BI2.
BI1
S4
IL, Ig
Sensor channel 4.
Monitoring tie breaker compartment.
Trip criteria: C Light.
Trip outputs: T1 (main CB), T3 (tie breaker), T4 (trip alarm).
Signal outputs: HSO2 (MT) to outgoing units EAFR-101 CS:0 input BI2.
BI1
BI2
IL, Ig
Binary input 2.
Trip criteria: C Light.
Trip outputs: T1 (main CB), T3 (tie breaker), T4 (trip alarm).
Signal outputs: HSO2 (MT) to outgoing unit EAFR-101 CS:4 input BI2.
Signal outputs: BI2 (> from outgoing units EAFR-101 CS:0 output BO1.
BI1
Table 35. Trip and I/O Logic - EAFR-110P CS:2,A.
Inputs
Outputs
Light
Current
(External)
Current
(Internal)
T1
T2
T3
T4
HSO1
(Current)
HSO2 (MT)
BO1
IL, Ig
x*
x
BI1
S1
x
x
x
S2
IL, Ig
x
x
x
x
x*
x
x
BI1
S3
IL, Ig
x
x
x
x*
x
x
BI1
S4
IL, Ig
x
x
x
x*
x
x
BI1
BI2
IL, Ig
x
x
x
x*
x
x
BI1
ote:
N
*: HSO1 (Current) is not in use.