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Siemens 8DJ10 User Manual

Siemens 8DJ10
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Secondary Distribution Switchgear Types 8DJ10/8DJ20
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OPERATING
INSTRUCTIONS
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Table of Contents

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Siemens 8DJ10 Specifications

General IconGeneral
Rated CurrentUp to 2500 A
Insulation MediumSF6
Applicationsindustrial plants
WeightVaries depending on configuration
TypeGas-insulated medium-voltage switchgear

Summary

Safety Instructions

Signal Terms and Definitions

Defines warning signals used in the manual for safety.

Due Application

Specifies correct usage and conditions for safe operation.

Qualified Personnel

Defines requirements and qualifications for personnel.

Description

About These Instructions

Outlines manual scope, limitations, and references to other documents.

Features

Lists technological, safety, operational, and economic benefits of the switchgear.

Switchgear Versions

Presents different configurations and schemes for 8DJ10/8DJ20 models.

Switchgear Design

Details the constructional features and components of the switchgear.

Modules

Describes key components like the switch-disconnector and operating mechanisms.

HV HRC Fuse Assembly

Explains the HV HRC fuse assembly and its function in protection.

Cable Connection

Covers methods and adapters for connecting ring-main and transformer feeder cables.

Interlocking Systems

Details safety interlocks that prevent hazardous operations.

Voltage Indication Systems

Describes systems for voltage detection and safe isolation verification.

Technical Data

Provides detailed electrical specifications and dimensions for the switchgear.

Installation

Preparing Installation

Covers packing, checking for completeness, and initial handling.

Unloading and Transport

Details safe procedures for unloading and moving the switchgear to its location.

Switchgear Installation

Specifies requirements for mounting, fixing points, and pressure relief.

Earthing the Switchgear

Describes the essential procedure for grounding the switchgear for safety.

Connecting Ring-Main Feeder Cables (RK)

Details connecting ring-main feeder cables with various makes, types, and adapters.

Connecting Transformer Feeder Cables

Explains connecting transformer feeder cables using elbow plugs for different routing options.

Verification of Correct Terminal-Phase Connections

Outlines the process to ensure correct phase sequence and connections using test units.

Mechanical Commissioning

Details checks and tests performed before energizing the switchgear.

Instructing the Operating Personnel

Emphasizes training operators on switchgear operation.

Switching on Operational High-Voltage

Describes the procedure and safety precautions for energizing the switchgear.

Operation

Safety Instructions

Provides critical safety warnings for operating the switchgear, especially regarding high voltage.

Overview Detachable Lever Mechanism

Explains controls and functions using a detachable lever.

Overview Rotary Lever Mechanism

Explains controls and functions using a rotary lever.

Control Elements

Identifies and describes the control elements and indicators on the switchgear.

Disconnecting and Earthing

Details manual procedures for disconnecting, earthing, and de-earthing.

Verification of Safe Isolation from Supply

Explains methods to verify that the equipment is de-energized before work.

Indications and Their Handling

Covers interpretation of status indicators like ready-for-service and fault indicators.

Replacing HV HRC Fuse Links

Provides detailed steps for safely replacing HV HRC fuse links.

Cable Testing

Describes the procedure for performing cable tests to detect faults.

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