Siemens 5-GMl-350 Circuit Breaker Manuals

Manuals and User Guides for Siemens 5-GMl-350 Circuit Breaker. We have 1 Siemens 5-GMl-350 Circuit Breaker manual available for free PDF download: Instruction

Siemens 5-GMl-350 Instruction (44 pages)

5kVand 15kV Vacuum Circuit Breakers

Brand: Siemens | Category: Circuit breakers | Size: 2.33 MB

Table of Contents
3
Introduction
4
Qualified Person
4
Signal Words
4
Dangerous Procedures
4
Field Service Operation
4
Introduction and Safety
4
Receiving, Handling and Storage
5
Introduction
5
Receiving Procedure
5
Shipping Damage Claims
5
Handling Procedure
5
Storage Procedure
5
Indoor Storage
5
Outdoor Storage
5
Soace Heating
5
Introduction
6
Installation Checks and Initial Functional Tests
6
Inspections, Checks and Tests Without Control Power
6
Energizing Contra: Power
6
Spring Discharge Check
6
Removal from Lower Cell
6
Removal from Upper Celi
7
Removal in Outdoor Non-Walk in Enclosures
8
Physical Inspections
8
Manual Spring Charging Check
8
Automatic Spring Charging Check
8
As-Found and Vacuum Check Tests
9
Final Mechanical Inspections Without Control Power
9
Interrupter/Operator Description
10
Introduction
10
Vacuum Interrupters and Primary Disconnects
10
Phase Barriers
11
Stored Energy Operating Mechanism
11
Primary Disconnects
11
Modes of Operation - MID-1991 and after
12
- Modes of Operation - Discussion
  12
- Spring Charging Mode
  12
- Closing Mode
  13
- Trip Free Mode
  13
- Opening Mode
  13
- Rapid Auto-Reclosing Mode
  13
Modes of Operation - up to MID-1991
14
- Modes of Operation - Discussion
  14
- Spring Charging Mode
  14
- Closing Mode
  14
- Trip Free Mode
  15
- Opening Mode
  15
- Rapid Auto-Reclosing Mode
  15
Closing and Opening Springs
16
Trip Free Operation
16
Damper
16
Manual Spring Charging
16
Spring Charging Motor
17
Close Solenoid, Trip Solenoid and Anti-Pump Relay
17
Secondary Disconnect
17
Auxiliary Switch
18
MOC (Mechanism Operated Ceil) Switch
18
TOC (Truck Operated Cell) Switch
18
Limit Switches
19
Standard Schematic Diagrams
19
Capacitor Trip Device
19
Undervoltage Release
21
Interlocks
21
Trio Free Interlock
22
Rating Interlock
22
Circuit Breaker Frame
22
Ground Disconnect
22
Circuit Breaker Handling Wheeis
22
Racking Mechanism
22
Maintenance
23
Introduction and Maintenance Intervals
23
Recommended Hand Toois
23
Recommended Maintenance and Lubrication
23
Removal from Switchgear
23
Inspection of Primary Disconnects
24
Checks of the Primary Power Path
24
Cleanliness Check
24
Checks of the Stored Energy Operator Mechanism
25
Maintenance and Lubr!Cation
25
Fastener Check
25
Manual Spring Charging and Contact Erosion Checks
25
Automatic Spring Charging Check
26
Damper Assembly Check
26
Electrical Control Checks
26
Check of the Wiring and Terminals
26
Check of the Secondary Disconnect
26
E'ectrical Close and Trip Check
27
Checks of the Spring Charging Motor
27
High-Potential Tests
27
Vacuum Integrity Check
27
High Potential Test Voitages
27
Vacuum Integrity Test Procedure
27
As-Found Insulation and Contact Resistance Tests
27
Insulation and Contact Resistance Test Equipment
27
Lnsuiation and Contact Resistance Test Procedure
27
Inspection and C!Eaning of Breaker Insulation
28
Functional Tests
28
Overhaul
29
Introduction
29
Circuit Breaker Overhaul
29
Rep!Acement at Overhaul
29
Rep!Acement of Closing Springs
29
Replacement of Opening Spring
29
Replacement of Closing and Tr!Pping Solenoids
30
Replacement of Anti-Pump Relay
30
Replacement of the Auxiliary Switch
30
Replacement of Motor Cut-Off Switch
30
Replacement of Trip Latch Reset Check Switch
30
Replacement of LS3 - MID-1991 and after
30
Replacement of LS3 up to MID-1991
31
Replacement of Spring Dump Switch
32
Replacement of Damper Assembly
32
Replacement of Spring Charging Motor
32
Replacement of Primary Disconnect Fingers
32
Replacement of Vacuum Interrupters
33
- Preparation
  33
- Vacuum Tube Removal
  33
- Vacuum Tube Replacement
  34
Periodic Maintenance and Lubrication Tasks
38
Troubleshooting
39
Appendix
41

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