Eaton EMR-4000 Installation, Operation And Maintenance Manual page 391

Motor relay
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Each protection element generates its own pickup and trip signals, which are automatically passed onto the »Prot«
module where the phase based and general (collective) pickup and trip signals are generated. The »Prot« module
serves as a top level and a common place to group all pickups and trips from each individual protection element.
For instance, »P
.P
ROT
ICKUP
A« is the phase A trip signal OR-ed from all protection elements; »P
from all protection elements; Prot.Trip is the collective Trip signal OR-ed from all protection elements, and etc. The
Tripping commands of the protection elements have to be fed to the »Bkr Manager« module for further trip request
processing.
If a protection element is activated and respectively decides to trip, two pickup signals will be created.
1.
The module or the protection element issues an pickup/alarm (e.g.: »50P[1].P
2. The master »Prot« module collects/summarizes the signals and issues a pickup/alarm or a trip signal
»P
.P
« »P
ROT
ICKUP
ROT
P
A« is the phase A pickup signal OR-ed from all protection elements; »P
HASE
The tripping commands are executed by the »Bkr Manager« module.
Tripping commands have to be assigned to a breaker. The Breaker Manager will
issue the trip command to the breaker.
.T
«.
RIP
EMR-4000
.P
ROT
ICKUP
www.eaton.com
« is the collective pickup signal OR-ed
« or »50P[1].T
ICKUP
IM02602009E
.T
P
ROT
RIP
HASE
«).
RIP
391

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