Checking The Contact Systems; Checking The Vacuum - Siemens 3AH3 Operating Instructions Manual

Abnormal conditions
If the 3AH3 vacuum circuit-breaker is used in
abnormally unfavourable indoor conditions (e.g.
frequent heavy condensation, dust-ridden air etc).
We recommend regular cleaning of the breaker
external components and, if necessary, renewal of the
anti-corrosion protection. Only the following products
may be used for the respective working parts of the
VCB.
Bearing, sliding surface:
Isoflex Topas L32
Kl ber- Lubrication KG
Geisenhausener Stra e 7
Postfach 70 10 47
81379 Munich
Federal Republic of Germany
Bearings inaccessible to grease and bearings of the
auxiliary switch S1:
SHELL Tellus Oil 32
SHELL Oil trade company GmbH
Zitadellenstra e 5
P.O.Box 900915
21079 Humburg
Federal Republic of Germany
Joints and bearings which cannot be dismantled must
not be treated with a cleaning agent prior to
reapplication of anti-corrosives.
After renewal of the anti-corrosion protection, several
mechanical test-switching operations should be
performed on the vacuum circuit-breaker.
Lubricants (for special conditions) are available from
the Siemens agent responsible:
180 g Kl ber-Isoflex Topas L32
and 50 g SHELL Tellus Oil 32
180 g Kl ber-Isoflex Topas L32
50 g SHELL Tellus Oil 32
1kg SHELL Tellus Oil 32
1kg Kl ber-Isoflex Topas L32
Checking the contact system
In the course of the service life of an interrupter, the
contact travel may move out of true.
This is caused by mechanical deformation
(compression) and/or erosion.
We have taken measures in design to ensure that such
minor changes in the travel do not affect the switching
performance of our circuit breakers.

Checking the vacuum

Such a check should be made if there is any risk of an
interrupter having developed a leak. Busbar and cable
connections must be split. The check is performed with
an HV test unit. If necessary, further information may
be obtained from the appropriate Siemens Regional
Office.
Operating Instruction Siemens 3AH3 / 西门子 3AH3 真空断路器使用手册
非正常运行工况
如果 3AH3 断路器被用于在非正常,不利的户内环境中
(例如 频繁的严重污秽条件下等).我们建议定期对断
路器外露部件清洗, 在必要时还应更新防污保护. 以下
产品可用于断路器的独立活动部件.
轴承, 滑动表面:
Isoflex Topas L32
Kl ber- Lubrication KG
Geisenhausener Stra e 7
Postfach 70 10 47
81379 Munich
Federal Republic of Germany
油脂润滑难以接近的轴承以及辅助开关 S1 的轴承:
SHELL Tellus Oil 32
SHELL Oil trade company GmbH
Zitadellenstra e 5
P.O.Box 900915
21079 Humburg
Federal Republic of Germany
不能拆卸的轴承和连接处在用防蚀剂处理前绝对不允许
用清洁剂擦洗.
重新更换防腐蚀保护后, 应对断路器进行几次机械操作
测试.
润滑剂 (用于特殊条件下) 可以通过西门子代理商或办事
处获得:
Order No
180 g Kl ber-Isoflex Topas L32
3AX1133-3A
and 50 g SHELL Tellus Oil 32
180 g Kl ber-Isoflex Topas L32
3AX1133-3H
50 g SHELL Tellus Oil 32
3AX1133-2G
1kg SHELL Tellus Oil 32
3AX1133-2D
1kg Kl ber-Isoflex Topas L32
3AX1133-3E
检查触头系统
在真空泡的电寿命期内触头开距可能有变化,这是机械变
形(触头间压力)或腐蚀造成的. 我们在设计上已采取了措
施确保了这种较小的变化不会影响断路器的开断性能.
检查真空度
当怀疑灭弧室有漏气现象时, 应该作真空度检查. 母排 和
电缆连接应拆除. 检查方法是对灭弧室施加高压. 如
有必要可向西门子办事处获取更多信息.
订货号
3AX1133-3A
3AX1133-3H
3AX1133-2G
3AX1133-2D
3AX1133-3E
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