Operating the removable voltage transformers
246 NXAIR / ≤ 40 kA 110-0134.9 / 14
19.5 Racking the removable voltage transformers to test position
Maloperation
If the removable voltage transformers are not correctly positioned in the panel,
damages may occur when the removable voltage transformers are racked.
If you hear a noise or if you notice a resistance, stop racking immediately.
Inform the regional Siemens representative.
Fig. 437: Racking tool for the removable voltage transformers
Preconditions
•
High-voltage door closed
• Removable voltage transformers in service position
• Door to voltage transformer compartment closed and screwed tight
• Racking tool available
• Key for padlock available
The actuating opening for racking the removable voltage transformers is located on the control board of the
door to the voltage transformer compartment.
Fig. 438: Actuating opening for racking the
removable voltage transformers
Remove the padlock from the operating slide.
Lift the operating slide and hold it.
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