Overhaul Instructions
Assembling the circuit-breaker pole
1HSB435409-201 enrev1
25
8.3 Assembling the breaking unit
1.
Fit the puffer (1) on the lower current path (2). Place the contact springs above
the slotted lower section of the puffer cylinder,
Figure 8-1
, position a. Press
down the puffer above the teflon band to its contact position. Roll the springs
down over the contact fingers to
Figure 8-1
position b.
2.
Place the sealing ring on the lower flange (4) and lift on the breaking chamber
insulator (5). Centre the breaking chamber insulator and tighten the bolts (6) to
60 Nm.
3.
Fit the upper current path (7) with the
sealing ring in the breaking chamber
insulator (5). Centre the current path’s
plug contact in relation to the nozzle
in the puffer (1). Tighten the bolts (6)
to 60 Nm.
Fit the new absorption agent container first
in connection with re-assembly of the
breaking unit on the post insulator,
see
Chapter 8.5
.
Figure 8-1. Assembling the breaking unit.
Item
1
Auto-Puffer
TM
2
Lower current path
3
Bolt M8x20
Retaining washer
Washer
4
Lower flange
5
Breaking chamber insulator
6
Bolt M12x50
Washer 13x28x3
7
Upper current path
8
Absorption agent container
TIGHTENING TORQUE
60 Nm
7
5
1
3
2
B10152
4
8
6
Position a
Position b
6
TIGHTENING TORQUE
60 Nm
Summary of Contents for SF6 LTB 245E1 BLG 1002A
Page 1: ...Product Manual 1HSB435416 2 en Rev 1 LTB 245E1 BLG 1002A 3 pole operation ...
Page 92: ...ABB Switchgear SF6 Circuit Breaker Circuit breakers HPL and LTB 1HSB445409 1 en0 Lubricants ...
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