Sungrow MVS4480-US System Manual

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7.2.2 Removing Pressure Relief Screw
Be sure to remove the pressure relief screws (marked as A in the figure below) before the
product is officially put into operation.
7.2.3 Installing Fuse in AC SPD
Step 1 Open the fuse holder on the AC side of the inverter that is near the transformer. （SPD fuse
position, see "3.3.2 Internal Structure of Inverter Unit"）
Step 2 Insert fuses.
Step 3 Close the fuse holder in the AC side SPD.
- - End
7.2.4 Adjusting De-energized Tap Changer
Adjust the output voltage of the transformer. When operating the de-energized tap changer,
ensure that the transformer is in a non-excitation state, that is, the high and low voltage
sides of the transformer are uncharged.
When the voltage on the LV side remains unchanged, the output voltage on the HV side
under different gears is:
7 Powering up and Powering down System Manual

Sungrow MVS4480-US Specifications

General

Brand	Sungrow
Model	MVS4480-US
Category	Inverter
Language	English