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5-3AFS-250
Siemens 5-3AFS-250 Manuals
Manuals and User Guides for Siemens 5-3AFS-250. We have
1
Siemens 5-3AFS-250 manual available for free PDF download: Instructions, Installation, Operation, Maintenance
Siemens 5-3AFS-250 Instructions, Installation, Operation, Maintenance (36 pages)
Vacuum Circuit Breakers
Brand:
Siemens
| Category:
Circuit breakers
| Size: 4.13 MB
Table of Contents
Table of Contents
4
A . Type 3 AFS Vacuum Circuit Breaker Front View
5
AFS Vacuum Circuit Breaker Rear View
6
Figure 2 . Rating Plate
10
Table/Rating Summary & Weights
11
Table
11
Rating Summary & Weights
11
Altitude Correction Factors
11
Closing and Tripping Solenoid Characteristics
12
Table
12
Auxiliary Switch Ratings
12
Typical Innterrupter / Operator Assembly
14
Section through a Typical Vacuum Interrupter
15
Section through a Vaccum Breaker Pole
15
Section through the Typical Vacuum Breaker
15
Afs - 250 4.76 2000
15
Afs - 350 4.76 1200
15
Operating Mechanism Closed Position - Closing Springs Discharged
16
Closing Springs Discharged
17
Figure 10 . Breaker Shaft in Open Position - Closing Springs Discharged
18
Operating Mechanism Open Position - Closing Springs Discharged
18
Figure 11 . Operating Mechanism Section Diagrams : a , B , C . D
19
Figure 12 . Operator Sequential Operation Diagram
21
Figure 13 . Front View of Mechanism Enclosure Arranged for Manual Operation
22
Figure 14 . Typical Elementary Diagram
23
Figure 15 . Construction of Shunt Release
24
Figure 16 a . Latch Detail Shunt Release
24
Figure 16 B . Latch Detail Undervoltage Release
24
Figure 16 C . Undervoltage Blocking Feature
24
Afs - 350 4.76 3000
26
Afs - 500
26
Afs - 500 15.0 2000
26
Afs - 500 8.25 3000
26
Afs - 750
26
Afs - 750 15.0 2000
26
Figure 17 . Operator Lubrication Points
27
Figure 18 . Typical Primary Interrupter Contact Life Curves
28
Figure 19 . Contact Erosion Check
29
Figure 20 a . Lower Pole Support with Insulated Coupler
29
Figure 20 B . Primary Contact Closed - Free Position
30
Figure 20 C . Primary Contact Forced Open by Manual Pressure
30
Figure 21 . Vacuum Tube Replacement Illustration
32
Figure 22 . Illustration Showing Required Technique for Fastening Terminal Clamp Hardware
33
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