Response To Abnormal Grid Conditions - Solectria Renewables SGI 500XT Installation And Operation Manual

Installation and Operation Manual (Rev A)

13.3 Response to Abnormal Grid Conditions

The inverter is designed to operate normally within the voltage and frequency ranges defined
by IEEE 1547-2003. Should grid conditions violate these limits, the inverter will cease to
energize within the required time. Once the grid conditions return to normal, the inverter will
then wait 5 minutes before attempting to reconnect. Tables 9.3 and 9.4 describe the standard
limits and clearing times. Other settings are available per the utility's request.
Protective Function
27-1
27-2
59-1
59-2
Protective Function
81O-1
81U-1
81U-2
DOCR- 070254-A
Voltage Pickup
V < 50%
V < 88%
V > 110%
V ≥ 120%
Table 13.3.1 – Response to Abnormal AC Voltage
Figure 13.3.2 –
Frequency Pickup (Hz)
f>60.5
f<57.0
f<{59.8-57.0} adjustable
f<59.3 standard
Table 13.3.2 – Response to Abnormal Frequency
Page 84 of 88
SGI 500XT
Clearing Time (s)
0.16
2.0
1.0
0.16
Clearing Time (s)
0.16
0.16
{.16-300} adjustable
0.16 standard