Power and productivity

for a better world

TM

Medium voltage products

HD4/R

-

HD4/S

-

HD4/UniAir

-

HD4/UniMix

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HD4/R-SEC

Installation and operating instructions

I. Introduction 4

1. Packing and transport 5

2. Inspection on arrival 6

3. Storage 7

4. Handling 8

5. Description 9

5.1 General information 9

5.2 Basic conﬁguration 9

5.3 Operating mechanism 10

5.4 Fixed circuit-breakers 10

5.5 Plug-in circuit-breakers 11

5.6 Gas pressure monitoring device (on request) 11

5.7 Circuit-breaker speciﬁcations 12

6. Instructions for circuit-breaker operation 17

6.1 Safety indications 17

6.2 Operating and signalling parts 17

6.3 Instructions for circuit-breaker operation 17

7. Installation 19

7.1 General information 19

7.2 Normal installation conditions 19

7.3 Preliminary operations 19

7.4 Installation of ﬁxed circuit-breakers 19

7.5 Installation of plug-in circuit-breakers 19

7.6 Power circuit connections 19

7.7 Earthing 20

7.8 Connection of the auxiliary circuits 20

7.9 Overall dimensions 21

8. Putting into service 31

8.1 General procedures 31

9. Routine inspections 32

9.1 General information 32

9.2 Inspection schedule 32

9.3 Troubleshooting 32

10. Servicing operations 33

11. Instructions for handling apparatus containing

SF

6

gas 34

12. Spare parts and accessories 35

12.1 List of spare parts 35

13. Quality of the products and environmental

protection 36

ABB HD4/R - 7.9.4 Plug-in HD4;S, 12...24 kV, 630... 1250 A

Table of Contents

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