Sungrow SG125HV, Руководство пользователя

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6 Electrical Connection User Manual
46
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It is not allowed to connect loads between inverter and circuit breaker.
Multiple Inverters in parallel Connection
If multiple inverters are connected to the LV side of the MV transformer in
parallel, and the HV side is connected to the MV grid, please respect following
requirement:
When more than 25 inverters are connected to a single winding of the
transformer, please contact Sungrow to confirm the technical solution.
L3
L2
L1
L3
L2
L1
LV side HV side
MV transformer
Inverter 1 Inverter 2 Inverter n
Fig. 6-2 Multiple Inverters in parallel Connection
Medium-voltage Transformers
SG125HV/SG125HV-20 Transformer Technical Requirements
 Nominal Frequency: 50Hz/60Hz
 Primary Voltage: According to the grid-connection point voltage
 Secondary Voltage: 600Vac （ Line to Line, allowed range:480~690Vac ）
SG125HV/
SG125HV-20
MV Grid
MV Transformer
1# 2# N#
Note : Additional phase monitoring devices may be required for grounded
primary (utility side) transformers. Engineers should confirm the protection
requirement prior to selecting the transformer.