PCKN-OIL738
25
6 Handling
6.1 Unpacking
Usually this relay is packed in a D1 case for transportation. However, it may occur that only the sub unit is
transported independently for the convenience at repair. In such a case, fully brush off the dust, dirt, etc.
adhered to the sub unit after completion of unpacking, and further visually check that the parts mounted
on the front panel or built in the sub unit are not damaged.
6.2 Transportation and storage
To carry the equipment within the place of use, handle it carefully so that the parts installed on the front
panel of the sub unit or built-in parts cannot be deformed or broken.
6.3 Appearance and how to pull sub unit out
The relay is so constructed that the sub unit can be drawn out, in order to facilitate inspection or test. It is
possible to pull the sub unit out without disconnecting the external wiring.
Note that the sub unit should not be drawn out with the line hot. Before drawing out, be sure to take the
following actions.
-
Lock the tripping circuit including breakers.
-
Stop the main circuit.
-
Open the auxiliary power supply circuit.
Bear in mind that careless opening of circuits may result in opening the other control circuits too to impair
the protective function. Be sure to only shut off the concerned circuit.
Communication card
Case
Sub unit
Cover
Lock levers
Draw-out handles
Cover operating buttons
Figure 6.1 Outside view of type CBV2-A01D1 relay
