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Intelligent Photovoltaic step-up substation
Intelligent Photovoltaic step-up substation is a high-voltage/low-voltage pre-assembled substation integrating high-voltage equipment, oil-immersed step-up transformer, low-voltage switchgear and corresponding auxiliary equipment. It is a specialized power distribution facility that raises the low voltage from photovoltaics to 40.5kV through an oil-immersed step-up transformer, and then outputs power upwards through the 40.5kV power system, making it an ideal supporting equipment for photovoltaic power generation systems.
Product Features
Large capacity: up to 11040kVA transformer can be integrated within a 20HQ container.
High Reliability: High anti short-circuit capability (circular coil), 1.2 times overload, 0 oil leakage.
High protection: IP55, adaptable to all working conditions (desert, tidal flats, etc.).
High efficiency: Meets European standards EN50588 and EU548.
Intelligent: Remote control and intelligent monitoring.
Technical Parameter
| Intelligent Photovoltaic step-up substation | |||||
| Enclosure Characteristics | |||||
| Rated capacity(kVA) | ≤11040 | ||||
| Voltage | High voltage(kV) | ≤40.5 | |||
| Low voltage(kV) | 0.8/1 | ||||
| Forms of operational control | Manual / Motorised / Remote | ||||
| Enclosure type | Material type | Weathering steel | |||
| Thicknesses(mm) | ≤2 | ||||
| Max. Operating Altitude | ≤2000m (derating＞2000m) | ||||
| Enclosure protection level | IP54(IP55 optional) | ||||
| Corrosion Resistance | C4-M(C5-M optional) | ||||
| External dimension(L*W*H)(mm) | 6058*2438*2896(20HQ） | ||||
| Transformer part | |||||
| Transformer type | Oil-immersed | ||||
| Cooling type | ONAN / ONAF | ||||
| Winding Material | Al | ||||
| Tap regulation voltage | ±2*2.5% | ||||
| Transformer Vector Group | Dy11-y11 | ||||
| Transformer Min.peak efficiency index | Tier 2 In accordance with EN 50588-1 | ||||
| Transformer Oil Type | Mineral Oil (PCB free) | ||||
| High voltage switch part | |||||
| RMU Type | CCV(CV optional) | ||||
| Dielectric medium | SF6 / Dry air | ||||
| Rated current(A) | 630 | ||||
| Internal Fault Arc Class | AFLR 25kA/1s | ||||
| Protection Level of Switchgear | Gas tank:IP67;Enclosure：IP3X | ||||
| Low voltage switch part | |||||
| LV Main Switches | ACB (2500A~4000 A) | ||||
| LV AC Inputs | MCCB (250A~400 A) | ||||
| Max.number of LV AC Inputs | 32 | ||||
| Auxiliary Transformer | Dry Type ,5~10kVA, three-phase ,Dyn11 | ||||
| UPS | 2kVA 2h | ||||
| Protection | |||||
| Transformer Detection & Protection | Oil Level, Oil Temperature, Oil Pressure, Buchholz | ||||
| MV Relay Protection | 50/51,50N/51N | ||||
| LV Overvoltage protection | Type I+II | ||||
| Standards Compliance | |||||
| IEC 62271-202, EN 50588-1, IEC 60076, IEC 62271-200, IEC 61439-1,EU 548 | |||||
| Declaration: This product is a custom class, special requirements can be customised according to customer requirements. | |||||
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