Engineering Service
Tell Us Your Application — We’ll Size the Right Transformer
You know the application; we know the transformer math. Send your load, voltage, environment and standard — our engineers return a selection with capacity, vector group, impedance, cooling and a compliance check against your spec.
What This Service Covers
- Capacity sizing from load profile and duty cycle
- Voltage ratio and tap range selection
- Vector group matching to your system
- Impedance calculation for fault and protection coordination
- Cooling method (ONAN/ONAF/KNAN) for your ambient
- Standard compliance check — IEC, IEEE, GB, local utility
How It Works
Share Requirements
Send your application, load, voltage, environment and standard — or drawings if you have them.
Engineering Analysis
Our engineers run the calculations: capacity, impedance, vector group, cooling, losses and compliance.
Selection Report
You receive a complete selection with specs, compliance check and a formal quote — within 48 hours.
Review & Confirm
Discuss any adjustments with our engineers, then confirm your order for manufacturing.
Why Choose JINXING
12h Response
Initial technical response within 12 hours.
IEC/IEEE/GB
Full compliance check against your required standard.
Free Selection
Engineering selection is included with your quote — no extra cost.
20+ Years
Our engineers have sized transformers for 60+ countries.

One engineering team, from specification to service
This service is part of a connected workflow. Move between engineering, manufacturing, testing, installation and after-sales support without restarting the technical conversation.
Need a transformer for your project?
Send your specification — initial technical response within 12 hours, formal quote within 48 hours.