Power and productivity
for a better world
TM
Medium voltage products
HD4/R
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HD4/S
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HD4/UniAir
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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
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