Sungrow SG2500U-MV, Системное руководство

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System Manual 7 Commissioning
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Step 4
Stop the MV Station through the touch screen.
Step 5 Turn off
the “Trip Enable”, and turn off the “Door-protect enable” through the screen.
Step 6
Turn the “AC” knob switch to the ON position and manually close the two AC switches
inside the MV Station to wait the MV Station to display the key off state.
Step 7 Turn the
“DC” knob switch to the ON position and the DC switches inside the DC cabinet.
Step 8
Perform the start operation through the touch screen, and the MV Station starts
grid-connected operation.
To ensure normal operation for the first time, please measure the DC input
voltage of the MV Station beforehand. When the DC side voltage meets the
start-up requirement, i.e. DC voltage is steadily higher than DC start-up voltage.
Start the MV Station for the first time.
7.6 LCD Parameter Setting
When the LCD is on, set the LCD display language, data and time, communication
parameters, and active power limitation etc. according to Chapter 9: LCD Operation in this
manual. You can also view the running information and perform pertinent operation.
7.7 Completing Commissioning
If all the start-up procedures have been performed, check the operating condition of the MV
Station.

Check whether there are anomalies of the MV Station: abnormal noise, overheating,
smoking or unusual odor.

Check the grid-connected voltage of the MV Station, current and THD for unstableness.

Check the grounding of the MV Station enclosure.

Check the functionality of the LCD display.

Record accurately the MV Station operation data during commissioning.
The duration of commissioning depends on the plant scale, plant location, on-site
environmental conditions and so on. Usually, if the in-site condition is good, the
commissioning can last for 1 week, i.e. 168 hours.
The commissioning of the MV Station is completed. MV Station operates normally.
After commissioning, plant starts power generation and enters daily maintenance process.
After the MV Station is operating, make sure there are no flammable materials at
least 5 meters around the installation site.
Local/national standards about the min. electric clearance around the MV Station
should be respected.