60
Degree of protection
Type 3R
Allowable relative humidity range (non-
condensing)
0 – 95 %
Operating altitude
1000 m ( Standard ) / > 1000 m (
Customized )
( 3280.8 ft ( standard )) / > 3280.8 ft (
Customized ))
Communication
Standard: RS485, Ethernet
Compliance
IEEE C57.12.00, C57.12.90, C57.12.28,
Low-voltage cabinet UL891, Aux.power
cabinet UL508
*Parameters may vary subject to specific project requirement.
MVS4480–US
Transformer
Transformer type Oil immersed
AC output power
4480 kVA @ 40 ℃, 4928 kVA @ 30 ℃
Vector group
Dy1 / Dy11 / YNy0 / Customized (it needs
to be confirmed with Sungrow)
LV / MV voltage 0.8 kV / 34.5 kV
Maximum input current at nominal voltage 254 A * 14
Frequency 60 Hz
Tapping on HV
0, ±2×2.5%
Efficiency
99% @ 100% load (4480 KVA)
Cooling type KNAN
Impedance
Two Windings Typ. ≈ 8 % ± 7.5 % (IEEE
Tolerance) for 34.5 KV
Oil type Ester Oil
Winding material Al / Al
Insulation class
A
LV Panel
Disconnector specification
275 A / 800 Vac / 3P, 14 pcs
Fuse specification
350 A / 800 Vac / 1P, 42 pcs
Protection
Transformer protection
Expulsion fuse + Backup fuse
Transformer alarm contacts
Oil temperature alarm ＆ trip, Oil level trip,
Pressure trip
LV overvoltage protection
Type II
General Data
10 Appendix System Manual
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