Conext XW PRO 6848 6,800W 48V Installation

Table Of Contents
Grid Disconnect Settings
The Conext XW Pro will remain connected to the utility grid as long as voltage and
frequency are within the qualified range (i.e. less than the Over Voltage/Frequency limit
and higher than the Under Voltage/Frequency limit).
HECO implements voltage and frequency disconnect limits via High/Low Voltage Ride
Through (H/LVRT) and via High/Low Frequency Ride Through (H/LFRT) curves.
Grid voltage and frequency disconnect settings are defined in the table below, and take
effect only when the H/LVRT and H/LFRT curves are disabled.
Anti-Islanding
Disconnect Slow
Delay
The disconnection time delay for the grid voltage exceeding an over-voltage voltage level, but lower
than the fast disconnection level. The default value for this setting is 0.5 seconds.
Anti-Islanding
Disconnect Over
Frequency
The frequency above which the Conext XW Pro will stop export of power and record an islanding fault.
The default value for this settingis 64Hz (Oahu, Maui, Hawaii Island) and 65Hz (Molokai and Lanai). The
disconnect will occur if the inverter is over frequency for 0.1 seconds.
Anti-Islanding
Disconnect Under
Frequency
The frequency below which the Conext XW Pro will stop export of power and record an islanding fault.
The default value for this setting is 56Hz (Oahu, Maui, Hawaii Island), 50Hz (Molokai and Lanai). The
disconnect will occur if the inverter is under frequency for 0.1 seconds.
Anti-Islanding
Disconnect Over
Voltage L-N Fast
The line-to-neutral voltage above which the Conext XW Pro will stop export of power and record an
islanding fault. The default value for this setting is 144 V.
Anti-Islanding
Disconnect Over
Voltage L-N Slow
The line-to-neutral voltage above which the Conext XW Pro will stop export of power and record an
islanding fault. The default value for this setting is 132 V, and the disconnect will occur if the inverter is
over frequency for 0.5 seconds.
Anti-Islanding
Disconnect Over
Voltage L1-L2 Fast
The line-to-line voltage above which the Conext XW Pro will stop export of power and record an
islanding fault. The default value for this setting is 288 V.
Anti-Islanding
Disconnect Over
Voltage L1-L2
Slow
The line-to-line voltage above which the Conext XW Pro will stop export of power and record an
islanding fault. The default value for this setting is 264 V, and the disconnect will occur if the inverter is
over frequency for 0.5 seconds.
Anti-Islanding
Disconnect Under
Voltage L-N Fast
The line-to-neutral voltage below which the Conext XW Pro will stop export of power and record an
islanding fault. The default value for this setting is 60 V.
Anti-Islanding
Disconnect Under
Voltage L-N Slow
The line-to-neutral voltage below which the Conext XW Pro will stop export of power and record an
islanding fault. The default value for this setting is 84 V, and the disconnect will occur if the inverter is
under frequency for 0.5 seconds.
Anti-Islanding
Disconnect Under
Voltage L1-L2 Fast
The line-to-line voltage below which the Conext XW Pro will stop export of power and record an
islanding fault. The default value for this setting is 168 V.
Table 50HECO Grid Disconnect Settings
Specifications Conext XW Pro Owner's Guide
990-91227A-01 This document is intended for use by qualified personnel 153