Solar & BESS Transformer
Solar & BESS · 10–35 kV · On Inquiry
Step-up and interconnection transformers for solar and BESS projects — supplied on inquiry with project-specific specifications.
Designed for practical power-asset applications
Project-configured transformers for solar PV collection systems and battery energy-storage interconnection. Winding arrangement, voltage ratio, impedance, vector group and cooling duty are coordinated with the inverter, grid-connection and site design.
What we confirm before quotation
We coordinate the technical and commercial details with the appropriate manufacturing partner before confirming price, lead time and documents.
Supply format
Project-configured equipment supplied through qualified manufacturing partners; rating, documentation and delivery schedule are confirmed before order acceptance.
Typical document package
Datasheet, dimensional or wiring information, inspection records and export documents are provided where applicable to the selected configuration.
Please include in your inquiry
Technical Specifications
| Standard | IEC 60076 series |
| Application | Solar PV generation, battery storage interconnection |
| Rated Capacity | 500 – 5000 kVA typical (project specific) |
| HV Voltage | 10, 20, 35 kV class (grid connection level) |
| LV Voltage | 0.69 kV, 0.8 kV, 6.6 kV or dual-winding per inverter/block design |
| Vector Group | Dyn11, Ynd11 (utility requirement dependent) |
| Cooling | ONAN standard; ONAF for higher loading |
| Tap Changer | ±2×2.5% NLTC typical; OLTC on inquiry |
| Impedance | 6–8% typical for renewable step-up units |
| Fulfillment | Configured to the approved project datasheet |
Parameters above reflect standard export configurations. Exact values for your voltage class, ratio or kVA rating are confirmed against the factory datasheet in the quotation before order acceptance.
Available Models
| Model | Specification |
| 500–1600 kVA pad-mount | 10–35 kV / low-voltage · outdoor renewable site |
| 2000–5000 kVA substation | Step-up to MV collection / POI |
Exact ratings for your system voltage and duty are confirmed in the quotation against the factory datasheet. Custom configurations available on inquiry.
Features & Benefits
Inverter-Compatible Design
LV winding, impedance, vector group and thermal duty are coordinated with the selected PV inverter or BESS PCS.
Renewable Step-Up Duty
Configured for collection-system voltage, site fault level, ambient conditions and the approved grid-connection study.
Outdoor Project Options
Pad-mounted or substation-style arrangements, enclosure, cable boxes and accessories are selected for the site layout.
Lifecycle Documentation
Routine-test records, nameplate data, drawings and loss values are prepared against the approved project datasheet.
Typical Applications
Step up inverter output to the medium-voltage collector system for utility-scale photovoltaic plants.
Connect battery PCS blocks to the MV collection network with project-matched voltage, impedance and protection coordination.
Support combined PV, BESS and auxiliary distribution schemes with coordinated transformer ratings and operating modes.
Provide step-up duty between the renewable collection system and the plant substation or point of interconnection.
Frequently Asked Questions
What data is needed for a solar or BESS transformer quotation?
Provide inverter or PCS output voltage, MV grid voltage, rated power, frequency, vector group, impedance, cooling, altitude, ambient temperature and site standards.
Can the transformer support overload or bidirectional BESS operation?
The thermal rating, duty cycle and bidirectional power-flow requirements must be included in the project design so the transformer can be selected accordingly.
Is the transformer supplied as a standard stock model?
Renewable transformers are normally configured to the approved project datasheet; standard reference ratings can be adapted after the electrical study is confirmed.