The Photovoltaic Isolation Transformer from JINMA ELECTRIC is designed to provide galvanic isolation and voltage matching between photovoltaic inverters, energy-storage conversion equipment, electrical loads, and the utility grid.
Its primary and secondary windings are electrically separated, allowing power to be transferred through electromagnetic induction without a direct conductive connection. When correctly selected and integrated, the transformer can help establish a suitable electrical boundary, coordinate system grounding, adapt inverter output voltage, and reduce the transfer of certain electrical disturbances.
JINMA ELECTRIC can provide photovoltaic isolation transformer solutions based on the project’s inverter topology, input and output voltage, capacity, frequency, connection group, grounding arrangement, installation environment, and destination-market requirements.
Photovoltaic isolation transformers should be selected according to the complete electrical system rather than inverter power alone.
Please provide the following information with your inquiry:
| Selection item | Information required |
| Rated capacity | Required kVA or complete inverter/load data |
| Input voltage | Rated voltage and allowable variation |
| Output voltage | Required secondary voltage and tolerance |
| Phase | Single-phase or three-phase |
| Frequency | 50 Hz, 60 Hz or other project requirement |
| Inverter data | Brand, model, rated output and waveform information |
| Connection | Required primary and secondary connection |
| Grounding | Neutral and grounding arrangement |
| Load profile | Continuous load, peak load and harmonic characteristics |
| Installation | Indoor or outdoor |
| Environment | Temperature, humidity, altitude, dust and ventilation |
| Enclosure | Required protection level and cable-entry direction |
| Standards | Destination country and applicable certification requirements |
Installed between the inverter AC output and the point of grid connection when galvanic isolation, voltage conversion or a specific grounding arrangement is required.
Suitable for factories, warehouses, commercial buildings and industrial facilities that need to integrate photovoltaic generation with an existing electrical distribution system.
Can be used as part of the interface between a power conversion system, battery energy-storage equipment, facility load and utility grid.
Provides voltage matching and electrical separation in hybrid systems combining solar generation, energy storage, generators and local loads.
May be configured for photovoltaic inverter testing, production lines, laboratories and equipment-validation platforms that require an isolated AC power boundary.
A photovoltaic isolation transformer is a transformer with electrically separated primary and secondary windings. It transfers AC power while providing galvanic isolation and may also step the voltage up or down between the photovoltaic inverter and the grid or load.
No. The requirement depends on the inverter topology, grid-connection rules, grounding method, voltage level and system design. Always check the inverter manufacturer’s instructions and applicable electrical regulations.
Yes, an isolation transformer can be incorporated into some photovoltaic and battery energy-storage systems. Compatibility must be evaluated using the power conversion system’s voltage, output waveform, grounding requirements and operating modes.
Please provide the required capacity, input and output voltage, phase, frequency, inverter model, connection group, grounding method, installation environment, destination country and required standards.
