Trust In Grid Co., Ltd.
Your Certified & Integrated Transformer Partner
For over 30 years, Trust In Grid has been a trusted name in power transformer manufacturing. We specialize in the entire range-from single-phase and dry-type to high-voltage units up to 500kV-ensuring reliable performance for diverse applications.
Why Choose Trust In Grid? Vertical Integration & Deep Expertise
Beyond certifications, our real advantage lies in how we build
Complete In-House Manufacturing:
We control the entire process-from silicon steel slitting, winding, and core assembly to tank fabrication. This gives us unmatched quality control, cost efficiency, and faster lead times.
Scalable Capacity:
With 6 factories spanning 240,000 m²and a workforce of 2,000+, we reliably handle both high-volume orders and urgent projects.
Engineering Depth:
Our team of 200+ engineers provides deep technical support, from custom design (OEM/ODM) to troubleshooting, backed by over 30 years of export experience.
Confidence in Quality:
Every transformer is backed by a minimum two-year warranty, a testament to the durability and reliability built into our products.
We are more than a supplier; we are a partner that controls the quality from raw material to final testing. Let us power your project with confidence.
Ready To Discuss Your Specific Requirements?
Contact us today for a quotation or to schedule a factory visit.
Our Product
Power transformer, distribution transformer, pad mounted transformer,
oil immersed transformer, Prefabricated Substation step up transformer, circuit breaker, load break switch, current transformer, magnet wire
Product Application
1. Power Grids & Utility Infrastructure.
2. Renewable Energy (Solar, Wind, BESS)
3. Industrial & Manufacturing.
4. Commercial, Urban & Data Centers.
5. Transportation & Infrastructure (Rail, Ports, EV Charging).
6. OEM & Component Supply
Our Certifications: Your Global Access Pass
ISO 9001:2015:,CE,UL/cUL, CQC, CSA.
Our products are engineered to meet and exceed international standards, holding key certifications for global market entry:
Compliance & Safety: Full compliance with IEC, IEEE, ANSI, CSA, and DOE standards.
CE Mark & EU Market: Guarantees free movement within the European Economic Area.
ISO 9001:2015: Certifies our commitment to consistent quality management.
Product-Specific: Critical certificates like UL/cUL, CQC, CSA for specific regions and applications.
These are not just certificates; they are our proven commitment to quality, safety, and global compliance, simplifying your procurement and approval processes worldwide.
Production Equipment
1. Cutting Equipment (Shear, Slitter, Guillotine) – ~80 units
2. Winding & Foil Winding Equipment – ~60 units
3. Extrusion Machines (Copper/Aluminum) – ~6 units
4. Cutting & Processing Machines (Laser, CNC punch, wire cut) – ~30 units
5. Ovens & Drying Equipment – ~20 units
6. Grinding, Milling, Drilling Machines – ~10 units
7. Welding & Soldering Equipment – ~10 units
8. Press & Hydraulic Equipment – ~15 units
9. Other Auxiliary Equipment – Various
Total production equipment (approx.): 450+ units
Production Market
1. Data Centers & Critical Facilities
We provide reliable large substation (10–60 MVA) and dry-type transformers with N+1/2N redundancy for hyperscale and Tier III/IV data centers.
2. Renewable Energy Integration
Our high-efficiency solar step-up transformers (≥98.7%) and low-temperature wind farm units (–40°C) support green energy projects worldwide.
3. North American Power Distribution
IEEE/ANSI/DOE-compliant pad-mounted and substation transformers (15–25 kV) deliver safety and performance for utility and industrial grids.
4. European Energy Efficiency Upgrades
EU Ecodesign-compliant transformers reduce no-load losses by up to 40%, supporting sustainable grid modernization.
5. Industrial & Special Environments
ATEX/IECEx-certified explosion-proof and fully sealed transformers ensure safe operation in hazardous and corrosive conditions.
6. Emerging Market Infrastructure
Durable, fully sealed distribution transformers offer affordable reliability in high-temperature, high-humidity environments.
Our Service
We deliver end-to-end support across the entire project journey-from initial inquiry through long-term operation-ensuring a seamless and reliable experience at every phase.
All products are backed by a minimum two‑year warranty. Our 24/7 technical support team is ready to assist with remote troubleshooting or on‑site service when required. We stock critical spare parts to enable rapid response, and offer customized training for your operations and maintenance staff. Beyond warranty, we provide lifelong technical consultation and keep you informed about compatible product upgrades.
Our commitment is to build lasting partnerships by delivering consistent, professional support throughout the lifecycle of your project.