GE Industrial Solutions EntelliGuard G Arc Chute - Manual

1
.
Arc Chute:
Arc chutes are supplied with the Entelliguard
breaker. In cases where it needs the field
replacement, they are supplied as spares.
Figure A Figure B
Envelope
Size
Catalog #
Envelope 1 G20HCHT
Envelope 2 G40MCHT
Envelope 3 G64LCHT
Envelope 3-
200kA
G64WCHT
Arc chamber assembly removal & inspection:
1 Turn the breaker off and discharge the
closing springs by depressing the OFF and
ON buttons in the sequence OFF-ON-OFF.
Verify that the breaker OFF-ON indicator
shows OFF on a green background and
that the charge indicator shows
DISCHARGE on a white background. If
installing in a draw-out type breaker
remove breaker from adaptor (cassette)
before continuing.
2 The breaker should be safely isolated and
fully removed from the cassette (for
drawout breaker)
3 Loosen the M6 mounting screws of arc
chamber to the housings as shown in fig
A
4 Gently lift the Arc chamber assembly as
shown in fig B.
5 Inspect the arc plates and sides of the
moldings for signs of wear or damage
and replace if necessary.
6
Install the arc chamber assembly by
tightening the mounting screws to torque
of 8-10 Nm (5.9 – 7.4 ft-lbs)
Arc chamber assembly removal & inspection for
Fr-3 200kA:
1 Follow Step 1 and 2
2 Slide out ITEM No 1 and loosen six numbers
of M6 mounting screws of arc chamber to
the housing as shown in figure C
3 Gently lift the Arc chamber assembly as
shown in fig B.
EntelliGuard ® G Circuit Breaker
Accessories
Arc Chute Assembly
WARNING: Before installing any accessories, turn the
breaker OFF, disconnect it from all voltage sources,
and discharge the closing spings.
AVERTISSEMENT: Avant d’installer tout accessoire,
mettre le disjoncteur en position OFF, le déconnecter
de toute tension d’alimentation , et décharger les
resorts d’armement
DEH-41389 Installation Instructions