864-5091.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DB10 • Revision 06 101/214
Installation
26.2 Installation of voltage transformers type 4MU4 on the busbar
➭ Isolate and earth the busbar.
➭ Verify safe isolation from supply.
➭ Only for first installation: Remove protective cap.
➭ Remove the surge-proof dummy plug from the inside-cone bushing. To do this, undo the
three M8 hexagon socket-head bolts and remove the dummy plug.
Fig. 101: 4MU4 busbar voltage transformer
①
Low-voltage plug connector
②
4MU4 voltage transformer
③
Inside-cone bushing
④
Voltage transformer mounting plate
⑤
Intermediate ring
⑥
Busbar housing
⑦
Primary terminal at the voltage
transformer
⑧
Silicone adapter
⑨
Crane eye
Fig. 102: Removing the dummy plug
①
M8 bolts
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