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solar PV isolation transformer

solar PV isolation transformer
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Isolation Transformer Photovoltaic Isolation Transformer Descriptions SG isolation transformer is used to solve the power grid problems which are caused by the photovoltaic power generation,such as harmonic, flickering, DC magnetic bias, and over voltage. Transformers are usually used between power grid and grid-connected inverter which can isolated inverter and sent the power back to grid. Nominal frequency Connection Type Insulation classes Temperature Rise Optional part Ambient temperature Insulation class Storage temperature Insulation Resistance Noise Level Input-output: 3000VAC Isolation testing voltage Insulation classes Maximum Continuous Operation Temperature Allowed Maximum permissible mean temperature rise at rated operation Maximum permissible average temperature rise at short circuit INSULATION CLASS Connection Primary STANDARDS SIGNS ● After IEC60038 the input voltage can change about ±10%. The transformer rating power must be suitable selected.

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Selection Table Connection Group Insulation Class 绝缘等级 Optional part Cabinet NOTE: ① 5kva~20kva are Natural Air cooling; ② 25kva and above have a fan on each cabinet, When the temperature of transformer reaches 85 ℃, the fan starts to work; When the temperature of transformer reaches 165 ℃, High temperature alarm is activated. Mechanical data Ground bolt 接地螺栓 M6*35 W1 Dimension(±5mm) Ground bolt 接地螺栓 M6*35

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