Sanbian Sci-Tech
Transformer & Substation Knowledge Center
Clear answers for overseas buyers, EPC teams and project owners preparing transformer or substation requirements.
What should be included in a transformer RFQ?
A transformer RFQ should include the project country, application, product type, voltage level, rated capacity, quantity, applicable standard, cooling method, site conditions, target delivery schedule and any available technical specification or tender document.
- Project country or region
- Application such as grid, renewable energy, BESS, data center, industrial plant or EPC project
- Product type and voltage level
- Rated capacity, quantity, frequency and applicable standard
- Installation environment and site conditions
- Technical specification, drawing or single-line diagram if available
What documents are needed for a transformer quotation?
Useful documents include a technical specification, tender document, single-line diagram, load information, site condition data, applicable standard, testing requirements and delivery requirements.
- Technical specification
- Tender document or procurement requirement
- Single-line diagram
- Transformer schedule or equipment list
- Site condition data
What is FAT for power transformers before shipment?
FAT, or Factory Acceptance Test, is a set of inspections and tests performed before a power transformer is shipped. It helps verify whether the transformer meets agreed technical requirements, quality expectations and project documentation before delivery.
- Visual inspection and dimensional checks
- Nameplate checks and routine electrical tests
- Ratio, vector group and winding resistance checks
- Oil-related checks for oil-immersed transformers where applicable
- Accessory and documentation review
- Packing and shipment readiness check
How to choose a transformer for solar step-up projects?
Transformer selection for solar step-up projects should consider voltage level, capacity, inverter configuration, grid connection requirements, site environment, losses, cooling method, protection requirements, installation method and project standards.
- Project country and grid code requirements
- PV plant capacity and block configuration
- Low-voltage and medium/high-voltage side requirements
- Outdoor or indoor installation
- Ambient temperature, altitude and site environment