Figure 9. Insertion Of The Drawout Extension Rails; Figure 10. Lifting And Setting The Breaker In The Housing - Eaton VCP-W Series Instructions For Installation/Operation/Maintenance/Servicing

Instructions for installation,
operation, and maintenance of type
VCP-W vacuum circuit breakers
THE CIRCUIT BREAKER AND INTEGRAL LEVERING MECHANISM INCLUDES
ALL NECESSARY INTERLOCKS THAT, WHEN INTERFACED WITH A COM-
PATIBLE STRUCTURE, WILL RENDER THE CIRCUIT BREAKER MECHANISM
MECHANICALLY AND ELECTRICALLY TRIP-FREE DURING THE LEVERING
PROCESS. FOR INFORMATION PERTAINING TO INDIVIDUAL INTERLOCKS,
REFER TO PARAGRAPH 4.9 IN THIS SECTION.
Inserting breaker:
A. Lower compartment direct roll-in-breaker
Push the breaker into the breaker compartment until the breaker
"T" handle latches over the moving block on the levering screw
assembly. In this position, the breaker is considered in the
DISCONNECT position.
B. Upper compartment or non-direct roll-in-breaker
1. The breaker compartment has an interlock assembly on
the compartment levering assembly, located on both the
left and right hand rail assemblies. The purpose of the
interlock assembly is to prevent the breaker from being
removed from the compartment without the extension
rails in place.
2. In order to insert or remove a non-direct roll-in breaker, a
set of extension rails must be inserted into the left hand
and right hand rail assemblies. This is achieved by insert-
ing the appropriate rail, identified with a label, diagonally
into the slot such that the extension rail, when lowered,
unlocks the interlock allowing an installed circuit breaker
to roll forward. The rolling surfaces of the compartment
rail and extension rail are flush.
3. In this position, the breaker can be inserted or removed
from the breaker compartment (see Figures 9 and 10).

Figure 9. Insertion of the drawout extension rails.

NOTICE
Instruction Booklet IB131006EN

Figure 10. Lifting and setting the breaker in the housing.

Checking pan operation:
A. TEST or DISCONNECT/TEST position
To operate the breaker at this time (TEST position mode), it is neces-
sary to connect the secondary harness with the breaker.
Automatic secondary: For an automatically engaged secondary
harness, lever the breaker into the TEST position identified by the
breaker position indication (BPI) label.
Manual secondary: For a manually engaged secondary harness, pull
the secondary plug handle forward until the secondary receptacle,
located on the compartment levering pan, fully mates with the
secondary breaker wiring plug.
N ote: It is recommended that the power to the secondary connector be
de-energized prior to manually engaging the secondaries to prevent damage
to the secondary pins associated with the spring charging motor circuit.
To prevent damage never rely on racking to engage secondary on a
N ote:
manually engaged secondary.
In these positions, the breaker control circuit can be tested offline
(breaker is not connected to the primary circuit).
B. Racking the breaker to the CONNECTED position
1. Movement of the breaker from the TEST or DISCONNECT/
TEST position to the CONNECTED position.
a. The breaker will trip as the levering-in crank is pushed
in to gain access to the hex drive nut on the levering
system.
b. Rotate the levering-in crank in a clockwise direction until
the torque limiter on the levering-in crank "breaks free. "
As a position verification;
BPI pan assembly: the breaker cover plate MUST align
•
with the black line associated with the CONNECTED
position, location shown on the BPI label (Figure 12
item 7).
Non-BPI pan assembly: the red indicator on the lever-
•
ing system as shown through the window below the
levering-in crank on the front of the levering system
(Figure 13, item 7).
Effective March 2019
EATON www.eaton.com
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