Greenbyte Documentation

String DC Normalized Current

String DC Normalized Current is the normalized version of the String DC Current, where the normalization is done by dividing the String DC Current with the rating (ampacity) of the string. These signals are found on Combiner Boxes.

The signal is called String DC Normalized Current i where i is a number that corresponds to the respective string current. Normalizing the string currents by their rating enables comparison between the signals and the possibility to find underperforming strings. Combine it with Reference Current Normalized to configure alerts to automate string monitoring.

The ratings used for the normalization of the strings currents can be provided as input or the rating can be automatically decided based on a year of historical data.

Note

This signal must be enabled by Greenbyte. To use it, please contact support@greenbyte.com.

Technology

Solar

Equation
string_dc_normalized_current_eq.jpg

where:

IiDC,norm

is the String DC Normalized Current i, where i is the number of the string

IiDC

s the String DC Current i, which is the measured current from one string (or one sensor)

Cstring

is the string rating (ampacity) of the string, specified by the user. This must be entered into the database by Greenbyte.

Clearned

is the string rating (ampacity) of the string, which is found by looking at historical data.

Inputs
string_dc_normalized_current_in.jpg