12
6.1 Positioning
Before the transformer is positioned, check the product size drawing and foundation drawing, and check whether the actual
size of foundation corresponds to the transformer base. Confirm that the foundation is level and able to withstand the weight
of the transformer. Ensure that the transformer is placed in the same direction as inlet wire of the high and low voltage bus.
6.2 High voltage side cable connection
The cable connection holes are reserved at the upper and lower ends of the connecting rod on the high voltage side of
the transformer. Taking the delta connection as an example, the phase sequence at the upper end is U-V-W and the phase
sequence at the lower end is V-W-U. Attention should be paid to correct phase sequence when connecting high voltage
cables. Fasteners shall be used during the connection, and loosening preventive measures shall be taken to fix the cable at the
terminal of the high-voltage connecting rod of the transformer. At the same time, it is necessary to ensure that the cable is
reliably supported so as to avoid obvious external force acting on the wiring. Refer to the figure below for connection mode.
High voltage cable junction
Corresponding connection phase sequence
Upper terminal
U-V-W
Lower terminal
V-W-U
6. Installation
Warnings:
• In areas with strict vibration requirements, additional cushions should be considered to prevent the loud noise due to ground vibration
of transformer.
• Do not block or plug the heat dissipation holes in the transformer enclosure.
• The transformer needs to be fixed on the foundation.
