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Check the open closed state the circuit-breaker the same "PR123/DC Test" screen, checking that
the closed and de-energized. No.
60/1 08
.
T 1/6
CB statu s
A Test
Trip (disabled)
CB open
Model 3447 pparatus cale
Doc.4 -0.2 connection test
If the PR123/DC was installed the user, important, before closing the CB, check the last line the display when
the relay turned for the first time via PR030/B battery unit.2
" 1
i
i
i
i
i '
1
1
*
- 5-
-0. 1SDH000635R0002
Page No.3.
13.3. disconnected messages must appear; they do,
do not close the circuit-breaker immediately and make the correct connections.
Pay particular attention the types cable, the connections earth and the recommended maximum distances.3 Test
Before putting into service, test can conducted means the specific "Auto test" function which
can activated the PR123/DC.7 Trip curves for function RP
103
102
10
10-'
-0.1 0
x Pn
13. positive
result shown the circuit-breaker opening.
Then test can conducted the whole chain, again using the specific function (Trip test).3 utting into service
13.This will enable satisfy all the international reference standards and guarantee perfect operation of
the relay even under severe environmental and electromagnetic conditions.3 -0.
13.10.To run Trip Test, press the Test” button and the Enter”
button simultaneously. positive result shown the display.3.2.1 Connections
A
For the connections provided the user, recommended that you comply strictly with the recommendations contained
in this document.[s] 104
13
