| Brand | ROCKWILL |
| Numero sa Modelo | Transformer sa Grid-Connected na Photovoltaic |
| Nasodnong peryedyo | 50/60Hz |
| Nagdeterminadong Kapasidad | 220kVA |
| Serye | SGG |
Panguna sa Produkto:
Ang mga isolation transformers sa photovoltaic power generation naglalarawan sa isang mahalagang papel sa mga sistema na gumagamit ng solar energy pinaigting sa pamamagitan ng photovoltaic effect sa semiconductor interfaces, kung saan ang mga solar cells ay nagsisilbing pangunahing komponente. Ang mga sel na ito ay inencapsulate at konektado sa serye upang mabuo ang malaking area ng mga module, na kapag pinagsama sa mga power controller, nabubuo ang isang buong photovoltaic power generation device.
Nakadisenyo para sa mga solar inverter system, ang mga photovoltaic transformers nangangailangan ng mataas na pagkakataon ng pagganap upang makapagbigay ng kompensasyon sa inherent na energy conversion losses sa photovoltaic setups. Ang kanilang grid-side wiring configurations, tulad ng Dyn11 at YD5 phase shift transformers na may 120° phase displacement, nagbibigay ng matatag na grid interconnection. Upang mabawasan ang no-load energy losses, ang mga isolation transformers na ito ay karaniwang ginagana tuwing araw at isinasara tuwing gabi.
Ang mga sumusunod ay mga reference parameters para sa three-phase photovoltaic transformers:
Pangunahing Katangian:
Electrical Safety Isolation:Nakadisenyo upang makamit ang ganap na electrical separation sa pagitan ng photovoltaic system at ang grid, na nagpipigil sa direct current (DC) leakage at nagbabawas ng mga panganib ng electric shock. It blocks grid-borne harmonics and surges, ensuring clean power transmission.
Efficient Grid Compatibility:Suportado ang standard grid connection configurations (e.g., Dyn11, YD5 with 120° phase shift) upang tugunan ang grid voltage at frequency requirements. Nagbibigay ng matatag na power inversion mula DC (solar panels) hanggang AC (grid), na may conversion efficiency ≥98% upang mabawasan ang energy loss.
Harmonic Suppression & Waveform Purity:Naglalaman ng low-loss core materials (e.g., oriented silicon steel) at foil winding technology upang supilin ang 3rd harmonic distortion at panatilihin ang sine-wave output. Nagsisiguro ng pagtugon sa grid power quality standards (e.g., IEEE 519) para sa maasahang grid interconnection.
Adaptive Operation & Energy Savings:May automatic daytime activation at nighttime shutdown upang mawala ang no-load losses. Katugon sa off-grid/on-grid systems, na may customizable capacity (5kVA–1000kVA) upang tugunan ang scales ng solar array.
Robust Environmental Adaptability:Ginawa na may weather-resistant enclosures (e.g., 304 stainless steel) para sa outdoor installations, na nakakapigil ng humidity, temperature fluctuations, at corrosion. Dry-type air cooling design nagsisigurado ng maintenance-free operation sa harsh environments.
Customizable Design Flexibility:Suportado ang voltage customization (input/output: 220V–1140V) at insulation classes (B/F/H) para sa iba't ibang project needs. Compact structure fits limited space in solar power stations, with optional IP certifications for enhanced protection.
Technical data:
Conditions of Use. Working environment temperature: 15~+50℃
Operating ambient temperature:20—90%RH
Atmospheric pressure in the working environment:860 hpa---1060 hp2
Storage/transport temperature:20℃-- +55℃
Main technical features:
Rated capacity:5KVA—1000KVA
Input Voltage: Rated voltage 270V or 315V
Input current by actual voltage
Output voltage: Rated voltage: 380V or 400V
The output current is based on the actual voltage
Connection mode :dyn11
Efficiency :≤98.5%
Frequency: 50HZ/60HZ
Insulation resistance :25A less than 500MΩ
Induction withstand voltage :125HZ/800y/60
Insulation Chip Class :H (Temperature Resistance 180 °C)
Noise :≤30dB)
Temperature rise: ≤ allows for a temperature rise of 115k
Impedance Voltage Drop :≤4%
Structure: Forced air cooling, waiting for the temperature controller, according to customer requirements, reach a certain temperature, the fan will be automatically opened.
Degree of protection :IP00
Anti-interference mode: copper foil isolation shielding grounding:
Waveform Distortion No additional waveform distortion.
Electrical strength: Power frequency sinusoidal voltage 3000V, which lasts for one minute, without breakdown and flashover
Insulation resistance (input and output to ground) Test voltage at least 1000V DC insulation resistance greater than 1000MΩ
Overload capacity Twice the rated current for one minute.