Cover 1950-97
Maintenance.................................................34-39
Introduction........................................................34
General...............................................................34
Recommended Maintenance and Lubrication....34
Mechanical and Electrical Operation of the
Controller...............................................34
Vacuum Contactors............................................35
Shutter Mechanism.............................................35
Racking Mechanism Adjustment........................35
Mechanical Interlocks........................................38
Electrical Interlocks............................................38
Electrical Joints and Terminals..........................38
Periodic Cleaning...............................................39
Dielectric Test.....................................................39
Overload Relay Checks......................................39
Recommended Torque.......................................39
Maintenance After a Fault has Occurred........40
Introduction........................................................40
General...............................................................40
Inspection...........................................................40
Enclosures..........................................................40
Terminals and Internal Conductors.....................40
Contactor............................................................40
Overload Relays.................................................40
Fuse Holders......................................................40
Fuses..................................................................40
Troubleshooting..........................................41-43
General...............................................................41
Introduction and Safety.....................................2
Introduction..........................................................2
Qualified Person...................................................2
Signal Words........................................................2
Dangerous Procedures........................................2
Field Service Operation........................................2
General Description......................................3-19
General.................................................................3
Basic Impulse Level.............................................4
Dielectric (Power Frequency Withstand) Test.......4
Ratings...............................................................4
Medium Voltage Contactors.................................4
Surge Protection...................................................5
Isolation and Automatic Shutter Mechanisms.......5
Racking Mechanism and Mechanical Interlocks..7
Medium Voltage Compartment Door Interlock.....7
Contactor Interlock...............................................7
Test Switch............................................................8
Mechanical Latch.................................................8
Detent Lever.........................................................8
Contactor Engagement Warning Light.................9
Line Switch Interlock (LSI)....................................9
Racking Switch Interlock (RSI).............................9
Power Fuses (Current-Limiting)..........................12
Use of 96H3 or 97H3 Contactor
in Other Cell Types.................................12
Receiving, Handling and Storage...............20-21
Receiving............................................................20
Handling.............................................................20
Skid Removal......................................................21
Contactor Removal.............................................21
Storage...............................................................21
Installation...................................................22-30
Introduction........................................................22
Operating Environment.......................................22
Site Preparation and Mounting...........................22
General Pre-Installation Inspection....................22
Grounding..........................................................22
Electrical Connection.........................................22
Contactor Installation..........................................24
Preinstallation Checks........................................24
Installation..........................................................24
Power Cable Termination....................................30
Series 81000 Controllers....................................30
Termination of Lead-Covered Cable...................30
Termination of Shielded Cables..........................30
Operation.....................................................31-33
Pre-Energization Check......................................31
Dielectric Test.....................................................32
Energizing Equipment........................................32
