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abb

SafeLink

Insulated Ring Main Unit

Installation and Operating Instructions

SLMIO ver 2.12 ABB Ltd, Switchgear Division, Auckland, New Zealand

Table of Contents

1 Introduction ___________________________________________ 1

1.1 Technical Data __________________________________________1

1.1.1 Physical Data _______________________________________________ 1

1.1.2 Electrical Data ______________________________________________ 2

1.1.3 Rating Label ________________________________________________ 3

1.1.4 Standard Compliance _________________________________________ 3

1.2 Arrangement Drawings___________________________________4

1.2.1 General Arrangement _________________________________________ 4

1.2.2 Foundation Plan _____________________________________________ 4

1.2.3 Schematic __________________________________________________ 5

2 Operation _____________________________________________ 6

2.1 Gas Density Gauge_______________________________________6

2.2 General Switch Operation_________________________________ 6

2.3 Switch-Fuse Reset _______________________________________8

2.3.1 Steps for Fuse Replacement ____________________________________ 8

2.4 Fuse Link Selection _____________________________________10

2.5 Cable Box _____________________________________________11

2.6 Cable Testing __________________________________________11

3 Maintenance__________________________________________ 12

3.1 Environmental _________________________________________12

3.2 Maintenance ___________________________________________12

3.3 Gas Sampling and Filling ________________________________12

4 Transport & Handling __________________________________ 13

4.1 Storage________________________________________________13

4.2 Transporting___________________________________________13

4.3 Inspection of Unit_______________________________________13

4.4 Dimensions & Weights___________________________________13

5 Installation ___________________________________________ 14

5.1 Foundations ___________________________________________14

5.2 Main Cable Boxes_______________________________________14

5.3 Cable Connection_______________________________________14

5.3.1 Steps for Cable Connection ___________________________________ 15

5.4 Fuse Types and Replacement _____________________________15

5.5 Outdoor Enclosure______________________________________16

ABB SafeLink User Manual

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