Siemens 3AH 지침, 설치, 작동, 유지보수 - 페이지 25

{카테고리_이름} Siemens 3AH에 대한 지침, 설치, 작동, 유지보수을 온라인으로 검색하거나 PDF를 다운로드하세요. Siemens 3AH 33 페이지. Vacuum circuit breaker operator module
Siemens 3AH에 대해서도 마찬가지입니다: 설치 운영 및 유지보수 (20 페이지), 사용 설명서 (38 페이지)

Siemens 3AH 지침, 설치, 작동, 유지보수
Overhaul
1.5 Free struts (28) from the upper pole support (20).
Loosen the strut hardware on the lower support
(40) and swing the struts forward and downward.
1.6 Loosen screws fastening the centering ring (28.1).
1.7 Remove bolt (31.2), lockwasher and large washer
at stationary contact of the vacuum interrupter.
Carefully note location of the conductive spacer
between interrupter and pole support. This spacer
has a concave surface which must be handled with
care to avoid damage.
1.8 Using a deep socket, loosen and remove hex
capscrew fastening the upper pole support to the
post insulator. Completely remove the upper pole
support and set aside.
1.9 Grasp the vacuum interrupter (30) and withdraw
vertically. Assistance may be required to work the
terminal clamp off the movable stem of the tube.
FORCIBLE TWISTING EFFORT IS NOT ALLOWED.
If the terminal clamp cannot be easily removed,
STOP!, check to be certain hardware is loose, and
that the clamp is not binding.
Figure 17. Vacuum Tube Replacement Illustration
2. Installing an Interrupter
NOTE: Replacement interrupter (30) will be received
from the factory with an eyebolt (36.3) in place, ad-
justed and torqued to specific requirements. DO NOT
ALTER THE ADAPTER SETTING.
2.1 Inspect all silver plated connection surfaces for
cleanliness. Clean only with a cloth and solvent.
Do not abraid.
2.2 Insert interrupter (30) in the lower pole support
(40) with the evacuation nipple (P) (if applicable)
facing the mechanism housing. Slip terminal
clamp (29.2) into position on the movable stem.
Figure 18.
Technique for Fastening Terminal Clamp Hardware
2.3 Install the conductive spacer between the fixed
(upper) terminal of the vacuum interrupter (30) and
the upper pole support (20), with the concave side
of the spacer facing the vacuum interrupter. Align
and fasten "finger tight" using heavy flat washer,
lock washer and nut, (31.2).
2.4 Fasten the upper pole support to the post insula-
tor using finger pressure only using hex head
(M16) bolt, lock washer and flat washer.
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