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3
Contents
Safety instructions............................................................................4
1
Signal terms and definitions................................ 4
2
General instructions ............................................ 4
3
Due application.................................................... 4
4
Qualified personnel ............................................. 5
Installation .........................................................................................6
5
Before installation................................................ 6
5.1
Preliminary clarifications...................................... 6
5.2
Switchgear room ................................................. 6
5.3
Installation dimensions and floor fixing ............... 6
5.4
Intermediate storage ........................................... 9
5.5
Tools/auxiliary means .........................................10
5.6
Installation and fixing material ............................ 11
6
Unloading and erecting the transport units ........ 11
6.1
Packing and transport unit.................................. 11
6.2
Checking the delivery for completeness and trans-
port damage ....................................................... 11
6.3
Checking the SF6-gas pressure .........................12
6.4
Unloading transport units ...................................14
6.5
Transporting the units to the place of installation
...........................................................................15
6.6
Setting down the transport units at the place of
installation ..........................................................16
6.7
Aligning the switchgear......................................19
7
Assembling the switchgear............................... 20
7.1
Preparing busbar assembly ............................... 21
7.2
Installing the transport unit ............................... 23
7.3
Installing further transport units ........................ 27
7.4
Completing switchgear installation ................... 27
8
Installation work with SF6-gas before commis-
sioning............................................................... 30
8.1
Completing busbar assembly and filling with SF6-
gas..................................................................... 30
8.2
Assembling panel connections supplied sepa-
rately and filling circuit-breaker housings with SF6-
gas ..................................................................... 34
9
Performing the power-frequency voltage test .... 36
10
Installation work with SF6-gas after the power-fre-
quency voltage test............................................ 38
10.1
Installing solid-insulated bars at the panel connec-
tion, and filling the circuit-breaker housings with
SF6-gas .............................................................. 38
11
Removing and installing non-disconnectable bus-
bar voltage transformers .................................... 39
11.1
Removing non-disconnectable busbar voltage
transformers ...................................................... 39
11.2
Installing non-disconnectable busbar voltage
transformers ...................................................... 43
12
Final installation work......................................... 46
12.1
Mounting cables with plugs............................... 46
12.2
Connecting low-voltage cables .......................... 46
12.3
Mounting the metal covers ................................ 46
13
Tests .................................................................. 46
13.1
Checking the SF6-gas filling............................... 46
13.2
Checking the circuits of the low-voltage equip-
ment .................................................................. 47
13.3
Checking high-voltage connections ................... 47
13.4
Checking electrical connections......................... 47
13.5
Checking protection against environmental influ-
ences ................................................................. 47
14
Commissioning .................................................. 48
14.1
Checking the installation work ........................... 48
14.2
Test operation .................................................... 48
14.3
Checking the accessories .................................. 49
14.4
Correcting circuit diagrams ................................ 49
14.5
Instructing the operating personnel ................... 49
Index .............................................................................................. 50