Installing Non-Disconnectable Busbar Voltage Transformers - Siemens 8DA Installation Instructions Manual
Medium-voltage switchgear
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- Operating instructions manual (48 pages) ,
- Operating instructions manual (36 pages)
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ATTENTION!
Risk of injury! While being removed from the bushing, the voltage transformer can
detach suddenly.
!
Remove the voltage transformer upwards as uniformly as possible.
!
Do not use excessive force.
ATTENTION!
Risk of injury! The voltage transformer type 4MT6 has a weight of approx. 60 kg.
!
Secure the voltage transformer against falling down.
!
If necessary, transport the voltage transformer with several persons or with suitable
aids.
!
Remove the voltage transformer upwards by means of the steel rods.
!
Protect the inside-cone plug of the voltage transformer against damages and
pollution.
!
Close the inside-cone bushing at the panel with surge-proof stoppers size 2.
11.2
Installing non-disconnectable busbar voltage transformers
The work operations described hereafter apply to all voltage transformer types. Special
work operations for individual voltage transformer types are pointed out.
DANGER!
High voltage! Danger! Before starting installation work at the busbar voltage
transformers, the busbar must have been isolated and earthed.
!
Isolate and earth the busbar.
ATTENTION!
Sensitive parts of the switchgear may be damaged during installation work at the
busbar and the busbar housings.
!
While working at the busbars or the busbar housings, prop up only on the
aluminium housings and the supporting frame.
!
Do not prop up on sensitive parts of the switchgear like gas pipes, rupture
diaphragms, shafts, etc.
ATTENTION!
While working on metal-coated voltage transformers, the coating may be scratched or
damaged. Then, the voltage transformers are not safe-to-touch anymore.
!
Work carefully while mounting metal-coated voltage transformers.
!
Take care not to scratch or damage the metal coating.
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