Safety Guidelines - Siemens GEAFOL Neo Operating Manual

3. Safety Guidelines

3.1 Equipment safety matters
Unload, position, transfer, instal or store the transformer on site in accordance with this Manual to
prevent injury to persons or damage to the transformer body.
Check the grounding condition of the transformer before power on to ensure that the grounding
points of enclosure and the lower clamps are reliably grounded.
Before power on, it is necessary to carefully check whether any foreign objects (such as washers,
bolts, nuts, etc. left during installation) are left on the transformer core, low-voltage winding and
outlet busbar.
The transformer tapping shall be connected and tightened according to the tap indication on the
nameplate, and the three-phase tap must be consistent.
Insulation distance between secondary control communication line and transformer bus bar and
high voltage cable should be maintained to prevent interference of control communication signal
(e.g. RS 485 signal line).
It is forbidden to adjust the tapping under power-on condition, and the tapping can be adjusted
only after the transformer is powered off (power-off-padlock-power test-discharge-grounding).
After the overhaul, dismantle the grounding wire, evacuate the personnel from the site, and
energize the transformer after dismantling the warning sign.
If the transformer is damaged or does not work for some unclear reason, please contact Siemens
manufacturer.
3.2 Operator safety matters
When lifting the transformer vertically, it is strictly forbidden to stand below, and never enter the lifting work
area of the crane and the operating radius of the vehicles and machine without permission.
Before the transformer is put into operation, the staff should make clear safety precautions and emergency
measures to deal with emergencies.
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