Growatt WIT 50-100K-US - Page 82

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Max. output current
66.2A
83.4A
99.3A
132.4A
Power factor
(@nominal power)
>0.99
Adjustable power
factor
（1 leading～1 lagging）
THDi
<3%
<3%
<3%
<3%
AC grid connection
type
3P+PE
Backup power (AC)
Rated AC output
power
50000W
63000W
75000W
100000W
Max. AC apparent
power
60000VA
75600VA
90000VA
120000VA
Rated output voltage
277V/480V
Nominal AC
frequency
50/60 Hz
Max. output current
72.2A
91A
108.3A
144.4A
Voltage accuracy
1%
Frequency accuracy
0.1Hz
THDv
3%
Unbalanced load
100% three-phase unbalanced
Overload capacity
≤110%，continuous;
110%～120%：10min
>120%，200ms
Efficiency
Max. efficiency
98.00%
98.00%
98.00%
98.00%
Max. battery
charge/discharge
efficiency
98.20%
98.20%
98.20%
98.20%
MPPT efficiency
99.90%
99.90%
99.90%
99.90%
Protection devices
PV reverse polarity
protection
Yes
Yes
Yes
Yes
DC surge protection
Yes（Class II）
Yes（Class II）
Yes（Class II）
Yes（Class II）
Insulation resistance
monitoring
Yes
Yes
Yes
Yes
RCD detection
Yes
Yes
Yes
Yes
AC short-circuit
protection
Yes
Yes
Yes
Yes
AC surge protection
Yes（Class II）
Yes（Class II）
Yes（Class II）
Yes（Class II）
Ground fault
monitoring
Yes
Yes
Yes
Yes
Grid monitoring
Yes
Yes
Yes
Yes