Poznámky redaktora
This will enable satisfy all the international reference standards and guarantee perfect operation of
the relay even under severe environmental and electromagnetic conditions.2
" 1
i
i
i
i
i '
1
1
*
- 5-
-0.3.
Then test can conducted the whole chain, again using the specific function (Trip test).
Check the open closed state the circuit-breaker the same "PR123/DC Test" screen, checking that
the closed and de-energized.3 -0.3 Test
Before putting into service, test can conducted means the specific "Auto test" function which
can activated the PR123/DC.1 Connections
A
For the connections provided the user, recommended that you comply strictly with the recommendations contained
in this document.3.
60/1 08
.3.
13.10.[s] 104
13. positive result shown the display.4 -0.1 0
x Pn
13.2.
13. 1SDH000635R0002
Page No.
Pay particular attention the types cable, the connections earth and the recommended maximum distances. positive
result shown the circuit-breaker opening.
T 1/6
CB statu s
A Test
Trip (disabled)
CB open
Model 3447 pparatus cale
Doc.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.3 utting into service
13. No.To run Trip Test, press the Test” button and the Enter”
button simultaneously.7 Trip curves for function RP
103
102
10
10-'
-0. disconnected messages must appear; they do,
do not close the circuit-breaker immediately and make the correct connections
