VENTUS / AC STATION

10 stations · 20 transformers · 100 MVA

100 MVA site / 10 MVA stationDC drawing

STATION ANALYSIS

Each 4,000 A assembly has L1, L2 and L3 bars. Values below are RMS line currents at the inverter apparent-power rating. Three phase currents are not added into one bus current.

InverterThree individual phase-cable lengths · m

L1L2L3

Zero means route not entered. Drawing positions do not determine cable lengths.

Inverter rating pointCable installation ambient · °CUser-supplied base ampacity · ACombined installation derating factor

Ambient is recorded, not converted into an invented temperature factor. Enter a supported base ampacity and combined derating for the actual installation. Cable, protection, fault duty, earthing and transformer suitability remain unresolved.

LV voltage difference & conductor losses

R20 · Ω/km (source: 0.0778)Assumed conductor temperature · °CAssumed aluminium α20 · /°CAC/DC resistance factor · enteredReactance · Ω/km · enteredLagging power factor · entered

Rθ = R20[1 + α(θ − 20)]. α defaults to the general aluminium coefficient in IEC 60228:2004, informative Annex B (0.00403/K); the cable sheet does not specify an alloy coefficient. I²R uses entered lengths; the DC-resistance benchmark excludes skin, proximity, armour and dielectric effects. With equal phase lengths and entered AC factor/reactance, the balanced approximation is ΔV = √3 I L (Rac cosφ + X sinφ). This is the sending-to-receiving voltage difference for export, not a network load-flow solution.

Cable source & drawing basis

cable power® aluminium · 400/39 mm² · part reference. Source: compacted class 2 aluminium conductor, XLPE insulation, aluminium tube armour, polymer jacket; black sheath. The sheet does not identify the sheath as HDPE.

R20: 0.0778 mΩ/m = 0.0778 Ω/km. Outer diameter: 37.4 mm; conductor diameter: 23.70 mm; weight: 1,725 kg/km. Rating U0/U: 1000/1000 V AC; maximum operating temperature: 90°C. The supplied three-page sheet contains no installation ampacity table.

cable exact product sheet · reference · inverter 352 kVA inverter datasheet

Two separate transformers follow the requested topology. Transformer ratings, HV voltage, vector groups, switchgear/protection and PE/armour bonding are not assigned in this phase-only diagram.

84 individual phase cables · L1 / L2 / L3 · neon shows average AC power direction · dots mark joints

VENTUS WIRING | CURRENT WORKING RELEASE | 20260922-A
DC wiring · AC station