Putting Into Service - ABB VM1 Installation And Service Instructions Manual

4.2. Putting into service

4.2.1. general procedures
all the oPeRationS RegaRding Putting
into SeRviCe MuSt be CaRRied out by
abb PeRSonnel oR by Suitably qualified
CuStoMeR PeRSonnel with in-dePth
knowledge of the aPPaRatuS and of the
inStallation. Should the oPeRationS be
PRevented, do not foRCe the MeChaniCal
inteRloCkS and CheCk that the oPeRating
SequenCe iS CoRReCt. the oPeRating
foRCeS whiCh Can be aPPlied foR RaCking-
in withdRawable CiRCuit-bReakeRS aRe
indiCated in PaRagRaPh 9.5.
Closing in case of a power failure
Closing is not advisable and is not possible.
Manual emergency opening
Use the crank handle 1 (Fig. 16) for manual emergency
operation.
Proceed as follows:
– couple the crank handle (1) in the seat (2)
– turn the crank handle (1) counterclockwise as far as the
end-of-run position
– if the circuit-breaker is in the racked-in position in the
switchgear/enclosure, it is now possible to take it to the
isolated position.
1
fig. 3
10
waRning
4.2.2. operation of the circuit-breaker
Closing
This can be carried out remotely by applying voltage at the
-SC2 input, or locally by pressing the "I" pushbutton on the
front of the circuit-breaker.
opening
This can be carried out remotely by applying voltage at the
-SO2 or -SO3 input, or locally by pressing the "O" pushbutton
on the front of the circuit-breaker.
opening in case of a power failure
Opening can be carried out remotely by means of the control
system, or locally by pressing the "O" pushbutton on the front
of the circuit-breaker within 60 s from the power failure.
notes
– Manual emergency opening is possible even after the 60 s time limit.
– in the case of a power failure and after the 60 s time limit, the circuit-
breaker remains in its present position.
if automatic opening is required after the 60 s time limit, dip Switch
"i 1004/1" must be enabled (see pag. 31 fig.13. auto-shutdown function
for low voltage of the capacitor/s).
2