Siemens 8DJ20 - Page 68

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Main Page

Contents2
Safety Instructions5
Signal Terms and Definitions5
Due Application5
Qualified Personnel5
Description6
Features6
Personal Safety6
Application6
About These Instructions6
Switchgear Versions7
Switchgear Design9
Constructional Features9
Product View9
Modules11
Three-Position Switch-Disconnector11
Characteristics11
Mode of Operation11
Operating Mechanisms12
Shunt Release (F-Release)12
Auxiliary Switch12
Wiring12
HV HRC Fuse Assembly13
Replacement of HV HRC Fuse Links14
Schematic Sketches for Fuse Tripping14
Ring-Main Cable Connection15
Transformer Cable Connection15
Ready-For-Service Indicator16
Interlocking Systems17
Voltage Indication Systems18
Accessories18
Features of the HR/LRM System18
Features of CAPDIS-S1/-S218
Short-Circuit/Earth-Fault Indicators19
Technical Data20
Complete Switchgear20
Dimensions20
Electrical Data22
Rating Plates23
Allocation of HV HRC Fuses and Transformers23
Allocation of HV HRC Fuse Links of Type 3GD and Transformers24
Servicing25
Maintenance25
Replacement of Components25
Applicable Standards and Specifications25
Packing26
Checking for Completeness and Transport Damage26
Preparing Installation26
Intermediate Storage27
Switchgear Transport by Means of Transport Lugs27
Necessary and Suitable Tools28
Moving the Switchgear to the Place of Installation28
Removing the Transport Units from the Wooden Pallets28
Checking the Gas Filling28
Switchgear Installation29
Floor Openings and Fixing Points29
Pressure Relief29
Earthing the Switchgear30
Installation of Cable Brackets for Switchgear with Low Subframe31
Electrical Connections32
Connecting Ring-Main Feeder Cables (RK)32
Installation of Adapters for Conventional Cable Sealing Ends32
8DJ20: Connecting Transformer Feeder Cable (Elbow Plugs) Series 2033
Work Operations34
8DJ10: Connecting Transformer Feeder Cables (Elbow Plugs) Series 20035
Verification of Correct Terminal-Phase Connections38
Connecting Auxiliary Circuits40
Final Assembly Work41
Checking the Rating Plate / Type Plate41
Checking High-Voltage/Control Cable Connections41
Checking Bolted Joints/Cleaning the Switchgear41
Mechanical Commissioning42
Checking the Assembly Work and the Accessories42
Test Operation42
Malfunction During Test Operation42
Instructing the Operating Personnel43
Switching on Operational High-Voltage44
Electrical Commissioning44
Preparations before Switching on44
Switching on more Incoming Feeders44
Operation46
Safety Instructions46
Overview Detachable Lever Mechanism47
Switching Functions47
Overview Rotary Lever Mechanism48
Control Elements49
Disconnecting and Earthing51
Closing the Switch-Disconnector52
Opening the Switch-Disconnector53
Earthing54
De-Earthing55
Verification of Safe Isolation from Supply56
Indications and Their Handling59
Ready-For-Service Indicator in the Red Area59
Taking the Switchgear out of Operation59
Replacing the Switchgear59
Troubleshooting60
Short-Circuit Indicator Red61
Checking Fuse Links61
Replacing HV HRC Fuse Links62
Isolating62
Removing the Cover of HV HRC Fuse Compartment62
Withdrawing the Fuse Slide62
Inserting the HV HRC Fuse Slide63
Closing the Cover of the HV HRC Fuse Compartment63
Cable Testing64
After Test Completion65
Index66

Siemens 8DJ20 - Page 68

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