S&C 2020 User Manual

36 S&C Instruction Sheet 716-504
Operation
Manual closing of the interrupters
cannot be performed. When control power
returns, if the disconnect has not been opened
manually, the motor-driven cam in the stored-
energy mechanism will charge the opening and
closing springs, and the take-off shaft will turn
to drive the interphase pipe assembly, opening
the disconnect.
Decoupling
The disconnect-blade power train may be
decoupled in the open position, permitting
the interrupter to be tripped and closed for
inspection purposes.
To decouple: Open the circuit-switcher
electrically or manually, then disengage the
decoupling handle on the rear of the operator
by pivoting it outward. See Figure 44 (right).
The disconnect-blade power train may now be
padlocked open. In addition, the interrupters
may now be closed and opened as desired,
either electrically or manually. The disconnect
will remain open.
To recouple: Open the circuit-switcher elec-
trically or manually, then engage the decoupling
handle on the rear of the operator by pivoting
it inward. See Figure 44 (left). The disconnect-
blade power train may now be padlocked
coupled.
Figure 44. Decoupling the disconnect-blade power train.
Figure 43. Engaging the manual operating handle with the manual
operating shaft, turning clockwise until disconnects open.
Access station
Manual
operating
handle
Vertical-
operating-pipe
assembly
Decoupling
handle
engaged
Vertical-
operating-pipe
assembly
Decoupling
handle
disengaged
Decoupled
Coupled

S&C 2020 Specifications

General

Brand	S&C
Model	2020
Category	Switch
Language	English