GE Gerapid 2607 User Manual page 48

6.2.5 Adjusting the auxiliary switch
1. OPEN the breaker.
2. Disconnect power supply, and pull out all the
plugs from control box's terminals.
3. In case of NEKO control unit inside, wait 1 minute
until capacitors discharge.
•
Adjustment of the switches may be required if they fail
to provide correct position indic ation. This condition
can be caused by misalignment of the actuating plate
(6) [Fig. 56-3], represented by dashed line.
•
If only 3 or 5 switches are installed in the center of the
block, plate misalignment will not occur (breakers built
after 2003).
•
In the case of 10 switches or when switches are
mounted at the far left position, it might be needed
(breaker before 2003). In most cases, only far left or f ar
right mounted switches might need to be re-adjusted.
•
Check all the switches operation to establish which
need to be re-adjusted (left or right side).
•
OPEN the breaker.
•
[Fig. 56-1] Loosen four screws (2). Move the f ront cover
(1) slowly down. The auxiliary switch block (3) is acces-
sible now, in the bottom of the compartment.
•
[Fig. 56-2] Loosen screw (4) on the side (left or right),
which needs to be re-adjusted. Turn the proper adjust-
ing sc rew (5) clockwise, until all contacts switch prop-
erly. Warning! Adjusting sc rew (5) too far in may over
compress the switches' pin and c ause breakdown.
•
[Fig. 56-1] Check the correct signalization of all
switches at the connecting plug terminations X4, X5! If
necessary re-adjust the switc hes from other side.
•
Now tighten solid the screws (4).
•
[Fig. 56-1] Close the control box with front cover (1) by
fixing the four screws (2). Pay attention, that no cables
will be pinched between box and f ront plate.
•
CLOSE the breaker several times. Check if the auxiliary
contacts are switching over correctly.
•
Finally check the electrical functions in the "TEST-
position" of the draw-out version after installing the
breaker into the substation.
If re-adjustment does not help, please contact GE Service
Team. It might be required to install switch block again or
to move switches to center of the block for better per-
formance.
48
Fig. 56-1 Control box with auxiliary switch block
Fig. 56-2 Auxiliary switch block
Fig. 56-3 Actuating plate for auxiliary switch block
Design and specifications are subject to change without notice
1 2 3
5
4
Gerapid in "ON" position:
Main contacts closed.
Aux. swit ches not actuated
3
6
6
Gerapid in "OFF" position:
Main contacts open.
Auxiliar y switch es actuated
S47183e rev.03 2009-09-02