Manual ZX0 HB 600 en - Revision 05 | 5
4.1.2.2 Manual mechanism 2 43
4.1.2.2.1 Operation of the circuit-breaker 43
4.1.2.2.2 Operation of the three position disconnector 44
4.1.2.2.3 Emergency manual operation 45
4.1.2.3 Motor operated mechanism 1 46
4.1.2.3.1 Emergency manual operation 46
4.1.2.4 Motor operated mechanism 2 49
4.1.2.4.1 Operation of the circuit-breaker 49
4.1.2,4.2 Manual operation of the three position disconnector 49
4.1.2.4.3 Motorized operation of the three position disconnector 49
4.1.2.4.4 Emergency manual operation 51
4.2 Panels with three position switch-disconnectors 52
4.2.1 Notes on earthing of a feeder panel or system section 52
4.2.2 Manual mechanism 53
4.2.3 Motor operated mechanism 53
4.2.4 Emergency manual operation of the motor operated mechanism 53
4.3 Panels with three position switch-disconnectors with HRC fuses 54
4.3.1 Notes on earthing of a feeder panel or system section 54
4.3.2 Manual mechanism 55
4.3.3 Motor operated mechanism 55
4.3.4 Emergency manual operation of the motor operated mechanism 55
4.3.5 Replacement of HRC fuses 56
4.4 Observation of the display and monitoring facilities 61
4.4.1 Gas monitoring with density sensors 61
4.4.2 Gas monitoring with pressure gauge 61
4.5 Operation of the isolating device for voltage transformers 62
5 Test procedures 64
5.1 Testing for the off-circuit condition 64
5.1.1 LRM system 64
5.1.2 KVDS and CAVIN systems 64
5.2 Testing for the in-phase condition 65
5.3 High voltage tests 65
5.3.1 Cable tests with DC voltage 65
5.3.2 Voltage test of the main circuit 66
5.4 Secondary protection testing 67
5.5 Protection testing by primary current injection 67
6 Maintenance 68
6.1 Inspection of the switchgear 68
6.2 Maintenance of the switching devices and their operating mechanisms 68
7 Actions at the end of the service life 68
8 List of tools 69
9 Working materials, auxiliary materials and accessories 70
9.1 Working materials 70
9.2 Auxiliary materials 70
9.3 Accessories 71
10 Technical data 72
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