Siemens NXPLUS C User Manual

802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 3/293
Contents
Safety instructions ............................................. 6
1 Signal terms and definitions ............................... 6
2 General instructions ........................................... 6
3 IT security .......................................................... 8
4 Due application .................................................. 9
5 Qualified personnel............................................ 9
Description ....................................................... 10
6 Features...........................................................10
7 Panel types....................................................... 12
8 Examples for panel versions ............................. 13
8.1 Circuit-breaker panels.......................................13
8.2 Disconnector panels .........................................17
8.3 Bus sectionalizer...............................................19
8.4 Switch-disconnector panel................................21
8.5 Vacuum contactor panel................................... 22
8.6 Ring-main panel ...............................................23
8.7 Metering panel.................................................23
9 Components .................................................... 24
9.1 Circuit-breaker .................................................24
9.2 Vacuum contactor............................................ 25
9.3 Three-position disconnector ............................. 26
9.4 Three-position switch-disconnector .................. 26
9.5 Operating mechanisms for three-position
switch ..............................................................27
9.6 Voltage transformers 4MT ................................ 28
9.7 Current transformers 4MC ................................ 31
9.8 HV HRC fuse assembly ...................................... 32
9.9 Busbar system ..................................................33
9.10 Cable connection .............................................34
9.11 Ready-for-service indicator ............................... 52
9.12 Interlocks .........................................................53
9.13 Voltage detecting systems................................ 54
9.14 Accessories ...................................................... 54
10 Technical data ..................................................58
10.1 Complete switchgear........................................58
10.2 Classification of NXPLUS C according to
IEC 62271-200 .................................................59
10.3 Standards, specifications, guidelines................. 60
10.4 Selection of HV HRC fuse-links .......................... 61
10.5 Motor protection table (with HV HRC fuses
make SIBA)....................................................... 70
10.6 Fuse protection table for metering panel
(with HV HRC fuse-links make SIBA)..................71
10.7 Rating plates ....................................................72
10.8 Vacuum circuit-breaker..................................... 72
10.9 Three-position disconnector for
circuit-breaker, disconnector and bus sectionalizer
panels ≥ 1000 A..............................................76
10.10 Three-position switch-disconnector for
switch-disconnector panels, ring-main panels
and circuit-breaker panels up to 630 A, vacuum
contactor panel and metering panel ................. 76
10.11 Endurance classes ............................................ 77
10.12 Vacuum contactor............................................ 78
10.13 Insulating gas................................................... 79
11 End of life ........................................................ 80
Installation........................................................81
12 Constructional stipulations ............................... 81
12.1 Switchgear room..............................................81
12.2 Constructional data of the foundation .............. 84
12.3 Transport units.................................................94
13 Before installation ............................................ 96
13.1 Preliminary clarifications...................................96
13.2 Intermediate storage........................................96
13.3 Tools/auxiliary means ....................................... 97
13.4 Comments on electromagnetic compatibility .... 98
14 Unloading and erecting the switchgear...........100
14.1 Packing and transport unit..............................100
14.2 Completeness and transport damages ............100
14.3 Unloading and transporting to place of
installation..................................................... 101
14.4 Checking the ready-for-service indicator ......... 105
15 Assembling the switchgear............................. 107
15.1 Aligning and joining the panels ......................108
15.2 Fastening the panel to the foundation ............ 110
15.3 Removing transport braces ............................. 110
15.4 Assembling the busbars..................................111
15.5 Mounting the busbar support ......................... 122
15.6 Installi ng current transformers on the
busbar ........................................................... 124
15.7 Installing busbar voltage transformers ............ 127
15.8 Interconnecting the earthing busbars .............132
15.9 Switchgear earthing .......................................132
15.10 Installing the low-voltage compartment ......... 133
15.11 Installing the horizontal pressure relief duct.... 134
15.12 Installing the switchgear termination.............. 143
15.13 Mounting the busbar covers ...........................144

Siemens NXPLUS C Specifications

General

Brand	Siemens
Model	NXPLUS C
Category	Circuit breakers
Language	English