Siemens Type Vector Manual de instrucciones - Página 14

Navegue en línea o descargue pdf Manual de instrucciones para Interruptor Siemens Type Vector. Siemens Type Vector 18 páginas. Manual group-operated switch

Imprimir página
Operational check out instructions
C
D
A
B
C
D
Item
Description
A
Spacer
B
Blade
C
Contacts
D
Auxiliary contacts
Figure 10: Blade
A
Item
Description
Air gap
A
1/8" (3.2 mm)
Figure 11: Air gap
14
Operational check out instructions
Operational check out instructions for the
type Vector® manual group-operated
switch are detailed in the following steps:
1. Switches are fully adjusted and
inspected before they leave the
factory. There should be no need to
adjust the switch unit.
2. Check the rotation of the hinge
terminals. They should rotate
approximately 180° with slight
resistance.
3. The following checks should be
performed independently on all three
phases to verify proper operation of
the switch and interrupters. This will be
performed manually.
a) Close the switch fully and lock the
operating handle into the CLOSE
position of the lock segment. Bounce
the blade toward the OPEN position.
The blade should remain tightly
against the stop. If the blade does
not remain tightly against the stop,
re-adjust the handle/lock segment
assembly per the Operating handle
adjustment procedure presented on
page 13. Refer to Figure 10: Blade.
Detail A
C
A
B
C
Item
Description
A
Spacer
B
Blade
b) With the switch still fully closed and
the interrupter cocked (set to trip),
the lever should stick above the
nylon bumper at least 1/8"
(3.2 mm). There should be no metal-
to-metal contact between the
interrupter's lever and the contact
casting. The lever should rest in the
air gap as shown in Figure 11: Air
gap. Raise the interrupter lever and
verify the lever clears without
touching any metal.
c) Slowly open the switch and verify
the following operations occur:
1. As the blade opens, the bottom
of the blade touches the
auxiliary contacts before the
main blade leaves the main
contacts (refer to Figure 12:
Blade movement, detail A). This
transfers the load from the
main contacts to the auxiliary
contacts. As the switch
continues to open, the main
contacts will part and no longer
carry the load, while the
auxiliary contacts carry the full
load (refer to Figure 12: Blade
movement, detail B).
Detail B
D
A
D
Item
Description
C
Contacts
D
Auxiliary contacts
Figure 12: Blade movement
D
C
B
C
D