Home / Oil-Immersed /S11 /400 kVA · 20 kV
S11-400/20 Oil-Immersed Distribution
400 kVA · 20 kV · Dyn11
Which grids this rating suits
- Indonesia — HV 20 kV, LV 400 V, 50 Hz. LV 400 V is a published option.
PLN tenders in Indonesia specify SPLN D3.002-1:2020, which sets maximum losses, Dyn5/Yzn5 vector groups and a 7-step tapping range. The losses in this published S11 20 kV table are above those maxima, so a PLN-specification unit is designed and quoted separately. PLN specification guide
Low-voltage options and vector groups
Low-voltage options: 0.4 kV. Vector groups: Dyn11. In IEC notation, Dyn11 means a delta-connected HV winding and a star-connected LV winding with the neutral brought out, the LV phase displaced by 330° (clock position 11) from the HV. Tapping: ±5 % / ±2 × 2.5 %.
Lead time and packing
Lead time is confirmed in each quotation. It depends on quantity, the final specification and any third-party pre-shipment inspection your import scheme requires. Packing and Incoterm are agreed per order — tell us the destination port.
Frequently asked questions
Which countries is the S11 400 kVA transformer suitable for?
Indonesia — HV 20 kV, LV 400 V, 50 Hz. LV 400 V is a published option. PLN tenders in Indonesia specify SPLN D3.002-1:2020, which sets maximum losses, Dyn5/Yzn5 vector groups and a 7-step tapping range. The losses in this published S11 20 kV table are above those maxima, so a PLN-specification unit is designed and quoted separately.
Which low-voltage options and vector groups are available for S11 400 kVA?
Low-voltage options: 0.4 kV. Vector groups: Dyn11. In IEC notation, Dyn11 means a delta-connected HV winding and a star-connected LV winding with the neutral brought out, the LV phase displaced by 330° (clock position 11) from the HV. Tapping: ±5 % / ±2 × 2.5 %.
What is the lead time and how is the S11 400 kVA transformer packed?
Lead time is confirmed in each quotation. It depends on quantity, the final specification and any third-party pre-shipment inspection your import scheme requires. Packing and Incoterm are agreed per order — tell us the destination port.