Off-grid photovoltaic power generation system is suitable for area of Grid connection or electricity is not stable. It is composed of solar modules, controller, storage battery and support frame. If AC load power supply, it still require AC inverter. This system will generate DC power stored in battery to supply electricity.
Off-grid photovoltaic transformer is used to make voltage rise transferring to grid accordingly. This kind of transformer has features of interference resistance, fire resistance, humidity resistance, safe reliable, saving energy and free maintenance.
Off-grid photovoltaic transformer can isolate three times harmonic wave from grid, which can lower heat generated from equipments and extend service life of insulation material. It is especially suitable for imported equipments(270V input and 380V output, 315V input and 380V output) 1KVA-1000KVA, which works together with photovoltaic inverter.
It is widely used in photovoltaic power generation system, wind energy, UPS constantly power supply, EPS fire protection emergency power supply, frequency converting power supply, inverter power supply.
Voltage variety variation ratio: ±1%
Output wave distortion: non-distortion
Insulation class: F, H, bearing 180°
Working efficiency: ≥98%
Applied frequency: 50/60Hz
Connection manner: △/Yn
Overload capability: allow over 1.5 times rated load for working one hour (available for full load)
Noise : ≤35dB
Temperature rise: ≤60℃
Insulation resistance: ≥150MΩ
Electricity resistance strength: 3000VAC/1min
Service life: 20 years
Working condition: -20℃~+50℃，humidity：≤95% RH
Cooling manner：dry type air cooling
Standard: VDE0550, IEC439, JB5555, GB226