861-9601.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DA10 • Revision 11 117/214
Installation
25.1 Removal of voltage transformers type 4MT3 from the busbar
➭ Isolate and earth the busbar.
➭ Verify safe isolation from supply.
➭ Remove the low-voltage plug connector at the voltage transformer.
➭ Remove the cover of the voltage transformer.
➭ Remove the fixing bolts of the adapter plate.
➭ Screw four press-out bolts into the holes provided for this purpose in the adapter plate.
➭ Press the voltage transformer out of the bushing together with the adapter plate with the
help of the press-out bolts. While doing so, screw the press-out bolts in uniformly, so that
the transformer is not canted.
Fig. 138: 4MT3 busbar voltage transformer
(shown without cover)
①
4MT3 voltage transformer
②
Low-voltage plug connector
③
Adapter plate
④
Voltage transformer mounting plate
⑤
Busbar housing
⑥
Distance sleeves
⑦
Outside-cone bushing
⑧
Hole with setnut for press-out bolts
①
Fixing bolts at the adapter plate
②
Holes with setnuts for press-out bolt
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