Siemens 8DA - Page 40

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Removing voltage transformer type 4MT3
! 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.
! Remove the voltage transformer upwards at the handle, together with the adapter
plate.
Fig. 26: Busbar voltage transformer 4MT3 (shown without cover)
a
Handle
s
Voltage transformer 4MT3
d
Adapter plate
f
Distance sleeves
g
Voltage transformer mounting
plate
h
Busbar housing
j
Outside-cone bushing
k
Hole with setnut for press-out
bolts
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 4MT3 has a weight of approx. 30 kg.
! Secure the voltage transformer against falling down.
! If necessary, transport the voltage transformer with several persons or with suitable
aids.