Siemens 3AF 01 Betriebsanleitung - Seite 15

Blättern Sie online oder laden Sie pdf Betriebsanleitung für Industrielle Ausrüstung Siemens 3AF 01 herunter. Siemens 3AF 01 24 Seiten. Outdoor vacuum switchgear

Seite drucken

1. Gear box

2. Motor

3. Mechanical ON push

button

4. Closing solenoid

(release)

5. Tripping solenoid

(release)

6. Mechanical OFF push

button

7. Operating rod for snap

switches

8. Mechanical spring

charged indicator

9. Mechanical ON/OFF

indicator

Fig. 11 Details of operating mechanism

7.6

Space Heater in the operating mechanism

housing

CAUTION

Note : The heater must be always "ON" whether the

breaker is in service or not, to prevent condensation of

moisture particularly on the insulating components.

One heater is provided in the mechanism housing. Keep

the heater switch in the ON position, so that when the

control supply is applied all the heaters are ON.

NOTE

Keep door and all covers closed firmly to prevent entry

of dust, moisture, insects etc.

18 19

10. Sheet steel frame

11. Shock absorber

12. Closing spring

13. Tripping spring

14. Auxiliary switch

15. Opening for hand crank

16. Operation counter

17. Drive shaft

18. Pin

19. Damping plates

20. Additional releases

(optional)

21. Snap switch

22. Rating plate

23. Tie rod for aux. switch

7.7

Inert Gas in the Sealed Pole

(optional feature)

Inert gas N

is filled up in each pole at about 1.5 bar

during manufacturing, in order to prevent the entry and

subsequent condensation of moisture during the service

life of the breaker. The gas is not for the purpose of

insulation.

Shaft

28.1

Fig. 12A Cross section of base frame

28. Indicator

28.1 Erosin Scale