S&C Instruction Sheet 681-525
7
Installation
Installing the Portable Motor Operator
Follow these steps to install the portable motor operator:
STEP 1.
Observe the position of the operating disk and
selector lever on the load-interrupter switch
way or single-pole or three-pole fault-inter-
rupter way to which the portable motor opera-
tor is to be installed. Remove padlocks. See
Figure 1.
If operation is to be from the
Closed
posi tion
to the
Open
position or vice versa, place the
selector lever in the
Grounded
position as shown
in Figure 1. In the far-right position, the selector
lever allows operation between the
Closed
and
Open
positions; inadvertent opera tion directly
from the
Closed
position to the
Grounded
posi-
tion is prevented.
I f operation is to be from t he
O pen
position to the
Grounded
position or vice
versa, place the selector lever in the
Blade
Closed
position. See Figure 2. In the far-left
position, the selec tor lever allows opera-
tion between the
Open
and
Grounded
posi-
tions; inadvertent operation directly from the
Grounded
position to the
Closed
position
is prevented.
WARNING
ALWAYS make sure the cables con nected to
the load-interrupter switch or fault interrupter
are de-energized before grounding the
switchgear .
Failure to fol low this precaution
can result in a flashover and equipment
damage.
Figure 1. Observe the position of the operating disk and selector
lever.
Operating disk (in Blade Closed position)
Selector lever
(in Blade-
Grounded
position)
Figure 2. Selector lever in the Blade Closed position.
Operating disk (in Blade Open position)
Selector lever
(in Blade
Closed
position)