SolarEdge PV Label

[Zyb]

Commercial Project
Module: (237) Silfab 490 HN (490W)
Optimizer: SE P1101
Inverter: (2) SE50KUS


Can anyone verify my label values. Thank you

DC
Operating Current: 314A = (237 x 490) / 370 = (no. of mod x mod power) / min. operating voltage range ??
Operating Voltage: 208V
Maximum System Voltage: 600V
Short Circuit Current: ??

AC
Rated AC Current: 279A = 2 x 139.5
Nom. AC Voltage: 208V

 

[ggunn]

Your DC numbers are all wrong because of the P1101 DC to DC converters. Your DC short circuit current is 18A and the maximum output voltage is 80V times the number of P1101s you have in your longest string unless it is more than the maximum DC voltage that the inverter can take, which in the case of the SE50KUS is 600V.

 

[Zyb]

Your DC numbers are all wrong because of the P1101 DC to DC converters. Your DC short circuit current is 18A and the maximum output voltage is 80V times the number of P1101s you have in your longest string unless it is more than the maximum DC voltage that the inverter can take, which in the case of the SE50KUS is 600V.

Thank you

 

[Zyb]

@ggunn how about for the DC operating current, is that correct?

 

[ggunn]

@ggunn how about for the DC operating current, is that correct?

No, the optimizers make the module Vmp and Imp irrelevant to what the inverter sees. I would enter 18A X the number of strings for both numbers.

 

[Carultch]

SolarEdge has a whitepaper on labeling your SolarEdge system, that describes the equivalents of labeling a standard PV system adapt to their equipment.