Component Units; Drive Unit; Mechanical Interlock; Figure 2-1. Drive Unit - ABB SF6 LTB 245E1 BLG 1002A Product Manual

Product Description

2. Component units

2.1 Drive unit

Item
1 Drive unit

2.2 Mechanical interlock

Item
1 Limit switch
2 Interlocking lever
3 Interlocking disc
4 Cam disc
5 Operating rod
6 Operating lever shaft
1HSB515432-100 en rev2
The drive unit is supplied with one or two motor options for 60, 110 or 220 V DC
and 50, 60 Hz AC.
The motor should be able to charge the springs at 85% of the nominal voltage (IEC).
The interlocking mechanism prevents a closing operation from being carried out if
the circuit-breaker is already in the closed position or if the operating mechanism's
closing springs are uncharged or not fully charged, which can occur, for example, if
the closing catch gear is opened by hand or if a mechanical fault occurs in the catch
gear.
1
B20031

Figure 2-1. Drive unit.

3
4
B20007

Figure 2-2. Interlocking mechanism.

Component units
1
5
2
6
5