Table Of Contents - Toshiba HV6FS-MLD Instruction Manual

Vacuum circuit breakers - drawout type 4.8 & 7.2kv voltage classes fast closing w/uv release

Table of Contents

Page 4

SAFETY....................................................................................................................................................1

INTRODUCTION ......................................................................................................................................6

GENERAL DESCRIPTION.......................................................................................................................7

Components..................................................................................................................................7

Safety Devices ..............................................................................................................................8

Indicators and Controls .................................................................................................................8

RECEIVING, INSPECTION AND HANDLING........................................................................................10

Receiving and Unpacking ...........................................................................................................10

Acceptance Inspection ................................................................................................................10

Handling and Moving ..................................................................................................................11

INSTALLATION......................................................................................................................................12

Rating Verification .......................................................................................................................12

Mounting the Circuit Breaker Cell ...............................................................................................12

Main Circuit Cable Connections..................................................................................................13

Ground Connections ...................................................................................................................14

Control Circuit Connections ........................................................................................................15

Placing the Circuit Breaker in the Cell.........................................................................................16

PRE-ENERGIZATION CHECK ..............................................................................................................18

General .......................................................................................................................................18

Electrical Checks ........................................................................................................................18

OPERATION...........................................................................................................................................19

Moving Circuit Breaker From Disconnected to Connected Position ...........................................19

Moving the Circuit Breaker From Connected to Disconnected Position .....................................20

Manual Operation........................................................................................................................21

Electrical Operation & Undervoltage Trip....................................................................................22

Electrical Operation Flow Chart ..................................................................................................23

MAINTENANCE .....................................................................................................................................25

Maintenance Program.................................................................................................................25

Maintenance Record ...................................................................................................................25

Servicing Equipment ...................................................................................................................25

Inspection and Maintenance Types ............................................................................................26

Table 1. Tightening Torques ......................................................................................................26

Table 2. Check Points for Periodic Inspection ...........................................................................27

Vacuum Check............................................................................................................................29

DISPOSAL..............................................................................................................................................31

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