4. Check Customization Capability
Every project is different. A good supplier should support:
- Voltage customization (e.g. 11kV / 33kV / 66kV)
- Capacity customization (e.g. 500kVA – 50MVA)
- Special applications (solar, mining, industrial)
5. Review Project Cases
Always ask for:
- Export countries
- Project photos
- Client references
This is the fastest way to judge reliability.
6. After-Sales Support
Reliable suppliers provide:
- Technical guidance
- Installation support
- Fast response service
