CHAPTER 6: SETPOINTS
S5 INPUTS/OUTPUTS
345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
6–129
S5 Inputs/Outputs
Figure 38: Inputs/Outputs menu
Contact inputs
The 345 relay is equipped with ten (10) contact inputs, which can be used to provide a
variety of functions such as for circuit breaker control, external trips, blocking of protection
elements, etc. All contact inputs are wet type contacts (refer to the 345 typical wiring
diagram) that require an external DC voltage source. The voltage threshold (17V, 33V, 84V,
166V) is selectable, and it applies for all ten contact inputs.
S5 CONTACT INPUTS
SELECT DC VOLTAGE
CONTACT INPUT 1
CONTACT INPUT 2
...
CONTACT INPUT 10
DEBOUNCE TIME
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S5 INPUTS/OUTPUTS
CONTACT INPUTS
OUTPUT RELAYS
VIRTUAL INPUTS
897768A1.cdr
S5 OUTPUT RELAYS
RLY 1 W1 BKRTRIP
RELAY 3 AUXILIARY
RLY 2 W2 BKRTRIP
RELAY 4 AUXILIARY
RELAY 5 AUXILIARY
RELAY 6 AUXILIARY
▼
S5 VIRTUAL INPUT 1
VI 1 FUNCTION
VI 1 TYPE
VI 1 NAME
▼
S5 VIRTUAL INPUTS
VIRTUAL INPUT 1
VIRTUAL INPUT 2
VIRTUAL INPUT 3
VIRTUAL INPUT 4
...
VIRTUAL INPUT 32
▼
S5 VIRTUAL INPUT 32
VI 32 TYPE
VI 32 NAME
VI 32 FUNCTION
▼
S5 RELAY 3 AUXILIARY
OUTPUT TYPE
S5
RLY 1 SEAL-IN
BLOCK RLY 1 TRIP
RLY 1 W1 BKR TRIP
▼
S5 DEBOUNCE TIME
CONTACT INPUT 1
CONTACT INPUT 2
CONTACT INPUT 3
...
CONTACT INPUT 10
▼
S5
RLY 2 SEAL-IN
BLOCK RLY 2 TRIP
RLY 2 W2 BKR TRIP
▼