Install Manual

27
13.1 UL 1741 SA Grid Support Utility Interactive Inverter Specifications
The PCS within this integrated storage product complies with the UL 1741 SA standard for grid support utility interactive
inverters. These functions are intended to be either enabled or disabled in accordance with local utility interconnection
requirements.
Table 5: UL1741 SA grid support functions.
Grid Support Function Tested
Test Standard
Anti
-
Islanding protection
–
unintentional islanding with grid support functions enabled
UL 1741 SA 8
Low/high voltage ride through
UL 1741
SA 9
Low/high frequency ride through
UL 1741 SA 10
Ramp rates
UL 1741 SA 11
Reconnect by “Soft Start”
UL 1741 SA 11
Specified power factor
UL 1741 SA 12
Dynamic Volt/VAR operations
UL 1741 SA 13
Frequency
-
Watt
UL 1741 SA 14
Volt
-
Watt
UL 1741 SA 15
Table 6: IEEE1547 grid support functions.
Grid Support Function Tested
Test Standard
Dynamic Voltage Support
IEEE1547
-
2018
Rate of change of frequency (ROCOF)
IEEE1547
-
2018
Phase
–
angle shift ride through
IEEE1547
-
2018
Limit active power
IEEE1547
-
2018
Watt
-
VAr
IEEE1547
-
2018
Table 7: SA9 Low and high voltage ride through settings.
SA9 Low and High Voltage Ride Through - Rule 21
Region
Voltage Range
[%Vnom]
RideThrough
Duration [s]
Maximum
Trip Time [s]
Operating Mode During Ride Through
High Voltage 2 (HV2) V > 120% N/A 0.16 N/A
High Voltage 1 (HV1) 110% < V ≤ 120% 12 13 Momentary Cessation (zero power)
Near Nominal (NN) 88% ≤ V ≤ 110% Indefinite N/A Continuous Operation
Low Voltage 1 (LV1) 70% ≤ V < 88% 20 50 Mandatory Operation
Low Voltage 2 (LV2) 50% ≤ V < 70% 10 50 Mandatory Operation
Low Voltage 3 (LV3) V < 50% 1 21 Momentary Cessation (zero power)
SA9 Low and High Voltage Ride Through - Rule 14H
Region
Voltage Range
[%Vnom]
RideThrough
Duration [s]
Maximum
Trip Time [s]
Operating Mode During Ride Through
Over Voltage 2 (OV2) V > 120% N/A 0.16 Cease to Energize
Over Voltage 1 (OV1) 110% < V ≤ 120% 12 13 Mandatory Operation (VW)
Continuous Operation
(CO)
88% ≤ V ≤ 110% N/A N/A Continuous Operation (VW)
Under Voltage 1 (UV1) 70% ≤ V < 88% 20 50 Mandatory Operation
Under Voltage 2 (UV2) 50% ≤ V < 70% 10 50 Mandatory Operation
Under Voltage 3 (UV3) V < 50% 1 21 Momentary Cessation (zero power)