Installing The Transformer In The Auxiliary Transformer Panel - Siemens NXPLUS C Installation And Operating Instructions Manual

Preconditions
Preparation
806-9004.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 02
17.2

Installing the transformer in the auxiliary transformer panel

Life-endangering voltage
Will cause death, injury or considerable property damage.
Always observe the Five Safety Rules:
➭ Isolate.
➭ Secure against reclosing.
➭ Verify safe isolation from supply.
➭ Earth and short-circuit.
➭ Cover or barrier adjacent live parts.
Hazard due to internal arc
Can damage the switchgear.
Do not put the auxiliary transformer panel into operation without a completely mounted
transformer.
➭ Mount and connect the transformer and the connection cables.
➭ Remove the transport angles of the connection cables.
Cracking of the floor cover due to too heavy transformer
Will damage the switchgear. Can cause serious injury.
If the transformer is lifted with inserted transformer, the floor cover of the panel will crack.
While lifting the panel, the transformer falls out of the panel.
➭ Lift or transport the panel without the transformer.
➭ Transport the transformer separately.
The transformer is very heavy, approx. 425 kg.
Incorrect transportation can cause serious injury.
➭ Transport the transformer with several persons or use suitable transport gear.
• The panel must be connected to the foundation.
• All earthing busbars to the adjacent panels must be mounted.
• All installation work in the lateral cable compartment must be completed.
Fig. 93: Transformer
➭ Remove and dispose of the pre-assembled bolt on phase L1 ① at the transformer.
DANGER
NOTICE
WARNING
CAUTION
① Phase L1
② Connection point of phase L2
③ Connection point of phase L3
④ Connection point of phase L1
⑤ Connection for secondary leads
Installation
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