Ac Cable Connection; Ac Side Requirements - Sungrow SG5KTL-MT User Manual

5 Electrical Connection
step 3 Apply paint to the grounding terminal to ensure corrosion resistance.
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5.4 AC Cable Connection

5.4.1 AC Side Requirements

Connect the inverter to the grid only after getting an approval from the local
electric power company.
Before connecting the inverter to the grid, ensure the grid voltage and frequency
comply with requirements, for which, refer to
the electric power company for help.
A A C C C C i i r r c c u u i i t t B B r r e e a a k k e e r r
An independent three or four-pole circuit breaker is installed on the output side of the
inverter to ensure safe disconnection from the grid.
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SG5KTL-MT
SG6KTL-MT
SG8KTL-M
SG10KTL-M
SG12KTL-M
Multiple inverters cannot share one circuit breaker.
•
Never connect a load between the inverter and the circuit breaker.
•
R R e e s s i i d d u u a a l l C C u u r r r r e e n n t t M M o o n n i i t t o o r r i i n n g g D D e e v v i i c c e e
With an integrated universal current-sensitive residual current monitoring unit inside, the
inverter will disconnect immediately from the mains power once a fault current with a
value exceeding the limit is detected.
However if an external residual current device (RCD) is mandatory, the switch must be
triggered at a residual current of 300 mA or higher.
M M u u l l t t i i p p l l e e I I n n v v e e r r t t e e r r s s i i n n p p a a r r a a l l l l e e l l C C o o n n n n e e c c t t i i o o n n
If multiple inverters are connected in parallel to the grid, ensure that the total number of
parallel inverters does not exceed 10. Otherwise, please contact SUNGROW for
technical scheme.
C C a a b b l l e e R R e e q q u u i i r r e e m m e e n n t t s s
Cross-section: 4~10 mm², cable diameter: 12 mm to 25 mm
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"10.1 Technical
R R e e c c o o m m m m e e n n d d e e d d A A C C c c i i r r c c u u i i t t b b r r e e a a k k e e r r c c u u r r r r e e n n t t
User Manual
Data". Otherwise, contact
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