Siemens 8DJH Series

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500-8067.9 * INSTALLATION AND OPERATING INSTRUCTIONS 8DJH * Revision 03 109

Operation

Ö Actuate the "ON" pushbutton.

r The feeder is closed.

Disconnecting the transformer feeder from the busbar

Ö Initial situation CLOSED.

Ö Actuate the "OFF" pushbutton.

r The feeder is open.

Main Page

Table of Contents3
Safety Instructions5
Signal Terms and Definitions5
General Instructions6
Due Application7
Qualified Personnel7
Description8
Features8
Functional Modules (Selection)10
Components12
Three-Position Switch-Disconnector12
Vacuum Circuit-Breaker Type 218
Interlocks22
Cable Compartment Covers23
HV HRC Fuse Assembly24
Cable Connection27
Current and Voltage Transformers31
Protection and Control Equipment31
Voltage Detecting Systems31
Ready-For-Service Indicator35
Short-Circuit/Earth-Fault Indicators37
Accessories39
Technical Data41
General Technical Data41
Three-Position Switch-Disconnector42
Three-Position Disconnector43
Vacuum Circuit-Breaker44
Classification of 8DJH Switchgear According to IEC/EN 62 271-20047
Standards and Guidelines47
Switchgear Versions - Dimensions and Weights48
Gas Leakage Rate50
Dielectric Strength and Site Altitude50
Selection of HV HRC Fuse-Links52
Rating Plates59
Switchgear Maintenance60
End of Service Life60
Installation61
Preparing Installation61
Packing61
Completeness and Transport Damage61
Intermediate Storage62
Unloading and Transport to the Place of Installation63
Checking the Ready-For-Service Indicator67
Preparing the Foundation68
Comments on Electromagnetic Compatibility68
Switchgear Installation70
Tools/Auxiliary Means70
Installing the Switchgear70
Pressure Relief Options80
Switchgear Earthing81
Retrofit of Motor Operating Mechanism82
Electrical Connections83
Connecting High-Voltage Cables83
Cable Connection with Cable-Type Current Transformers93
Connecting Secondary Equipment95
Correcting Circuit Diagrams96
Commissioning97
Final Tests after Installation97
Mechanical and Electrical Function Test98
Preparing the Power-Frequency Voltage Test99
Instructing the Operating Personnel99
Applying Operating Voltage99
Operation101
Indicators and Control Elements102
The Three-Position Switch-Disconnector103
Operations104
Protection Tripping for the Three-Position Switch-Disconnector with Spring-Operated/Stored-Energy Mechanism105
Ring-Main and Circuit-Breaker Panels: Operating the Three-Position Switch106
Operating the Transformer Feeder108
Operating the Vacuum Circuit-Breaker Type 2112
Closing the Circuit-Breaker Type 2 "Locally113
Opening the Circuit-Breaker Type 2 "Locally113
Charging the Spring Energy Store Manually114
Closing the Three-Position Disconnector in the Circuit-Breaker Panel Type 2115
Opening the Three-Position Disconnector in the Circuit-Breaker Panel Type 2116
Three-Position Disconnector in the Circuit-Breaker Panel Type 2: EARTHED Position117
Three-Position Disconnector in117
Deactivating the EARTHED Position118
Verification of Safe Isolation from Supply119
Replacing HV HRC Fuse-Links120
Cable Testing124
Cable Testing Via Cable Plugs124
Cable Sheath Testing126
Index127

Table of Contents

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