- ISO 9001 · CE · IEC 60076
- SGS / BV Inspection
- Shipping to 15+ Countries
Power Equipment Supplier · Since 2015
Transformers and substations, shipped from Shanghai to your grid.
Oil-immersed, dry-type, package substations and new-energy transformers from 10 kV to 500 kV — inspected to IEC and ANSI before they leave China.
Our Products
Five families,
one point of contact.
Oil-immersed and dry-type transformers, package substations, new-energy step-up units and purpose-built special transformers — sourced from certified manufacturers and inspected to your market's standard.
Oil-Immersed Transformers
10 kV – 500 kV · Power & Distribution
Distribution, pad-mounted and large power transformers for transmission and distribution networks.
Dry-Type Transformers
Cast Resin · VPI · Amorphous Alloy
Flame-retardant indoor units for buildings, data centres, metro lines and any load centre inside a structure.
Box-Type Substations
American · European · Containerised
Pre-assembled package substations that arrive ready to connect and cut site installation time.
New Energy Transformers
Solar · Wind · Energy Storage
Step-up and bidirectional units engineered for PV plants, wind farms and battery storage systems.
Special Transformers
Furnace · Rectifier · Mining · Isolation
Purpose-built units for arc furnaces, electrolysis, underground mining and sensitive equipment.
Who We Are
A Shanghai supply partner for power equipment.
Zhongwei Willis (Shanghai) Electric Technology Co., Ltd. is a professional supplier of power transmission and distribution equipment based in Shanghai. We specialise in transformers, substations and switchgear for clients across Africa, Southeast Asia and Central Asia.
- Sourced from certified manufacturers, inspected before delivery
- Compliant with IEC, ANSI and the destination market's standards
- Specified for local conditions — voltage, heat, humidity, dust
- One team from enquiry to production, inspection, shipping and service
Where We Ship
Delivered across Africa, the Middle East and Southeast Asia.
We understand what different markets require — from voltage standards to heat, humidity and dust — and specify accordingly rather than shipping a domestic unit abroad.
Shanghai · head office & export base
2015
Founded in Shanghai
15+
Countries Served
500kV
Max Voltage Class
5
Product Families
Why Zhongwei Willis
Three reasons buyers come back.
Range
Wider range than any single factory
Long-term partnerships with several top-tier manufacturers let us quote competitively, keep lead times short, and cover five product families without sending you to a different supplier each time.
Fit
Specified for where it will run
Voltage standards, ambient temperature, humidity, dust and altitude differ by market. We have delivered into all of them, so the specification is set before production, not corrected on site.
Assurance
Inspected before it ships
Routine tests on every unit and third-party inspection by SGS or BV on request, with the report in hand before the container is sealed.
Service
Comprehensive service across the whole project lifecycle.
From the first enquiry to the unit running on site, one team stays with the order — and answers the phone afterwards.
- 01
Pre-sales
Professional technical consultation, product selection guidance and customised solution design against your project requirements.
- 02
In-sales
Strict quality control at every production stage, real-time order tracking and efficient global logistics for on-time delivery.
- 03
After-sales
Installation guidance, technical support and comprehensive warranty service, with a dedicated team responding promptly to any enquiry.
Project Cases
Delivered, commissioned, running.
400 kV Substation Main Transformer Project
Twelve high-voltage main transformers for Saudi Arabia's national grid upgrade, running stably in high-temperature desert conditions and meeting peak summer demand.
Read the case
50 MW Utility-Scale Solar PV Step-Up Project
Twenty box-type step-up substations for a 50 MW solar farm, stepping PV output up for grid connection and supporting the local clean-energy transition.
Read the case
AI Data Centre Power Distribution Project
High-reliability dry-type transformers and distribution equipment for a leading Middle East AI computing hub with rack densities above 20 kW.
Read the caseNewsroom
What is happening at Zhongwei Willis.
Talk To Us
Send us the rating or the single-line diagram.
Voltage class, capacity, connection group and installation environment are enough for our engineers to come back with a recommended series, loss figures and outline dimensions.
- Sales & WhatsApp+86 131 5355 3230
- Email3373867314@qq.com
Request a quote
A member of our engineering team replies to every enquiry.
- Rated capacity (kVA / MVA) and quantity
- HV / LV voltage and tapping range
- Connection group and cooling type
- Destination country and installation environment
