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10
Appendix
10.1 Technical Parameters
MVS3200–US
Transformer
Transformer type Oil immersed
AC output power
3200 kVA @ 40 ℃, 3520 kVA @ 30 ℃
Vector group
Dy1 / Dy11 / YNy0 / Customized (it needs
to be confirmed with Sungrow)
LV / MV voltage 0.8 kV / 12.47 – 34.5 kV
Maximum input current at nominal voltage 254 A * 10
Frequency 60 Hz
Tapping on HV
0, ±2×2.5%
Efficiency
99% @ 100% load (3200 KVA)
Cooling type
KNAN / ONAN(for Mineral Oil ( -40℃ ))
Impedance
Two Windings Typ. ≈ 5.75 % ± 7.5 % (
IEEE Tolerance ) for 34.5 KV
Two Windings Typ. ≈ 8.0 % ± 7.5 % (IEEE
Tolerance) for 12.47 / 13.8 / 24.94 KV
Oil type
Ester Oil / Mineral Oil ( -40℃ )
Winding material Al / Al
Insulation class
A
LV Panel
Disconnector specification
275 A / 800 Vac / 3P, 10 pcs
Fuse specification
350 A / 800 Vac / 1P, 30 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
Dimensions(WxHxD)*
6,058x2,896x2,438 mm
Approximate weight* 14T
Operating ambient temperature range
-20 to 60 ℃ (optional: -30 to 60 ℃)
Auxiliary power supply
5 kVA, 120 Vac; Optional: 40 kVA ( 35 KVA
/ 480 V, 5 KVA / 120 V )
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