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6. Mounting of tap-changer on the transformer
6.1 Transformer mounting flange for tap-changer installation
A mounting flange is required to fix the tap-changer head on the transformer cover. The structure of the flange
should be designed according to the shape of the tap-changer head’s sealing surface (Figure 6-1). Double-
thread screw (M12, maximum length=45mm) should be accurately positioned.
Figure 6-1 Transformer mounting flange
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