Custom Toroidal Transformer Winding Services
Precision winding for energy, industrial, and power distribution applications
At Electric Grid Windings (EGW), we specialize in the precision winding of custom toroidal transformers.
Based in Connecticut, our company is built on a strong commitment to quality and reliability for the energy and power distribution industries.
We provide insulation wrapping, lead/tap soldering and testing.
Our goal is to become a trusted manufacturing partner for OEMs looking for flexibility, speed, and attention to detail.
Toroidal Core Winding
We specialize in precision winding of toroidal transformer cores under strict quality control standards. Our process ensures consistent winding tension, accurate alignment, and compact coil construction. This attention to detail improves performance, reduces losses, and extends product lifespan.
Insulation & Taping
Each core is wrapped and taped using industry-grade insulation materials designed for high electrical safety and thermal protection. Careful application of insulation provides mechanical stability, prevents short circuits, and ensures long-term reliability in demanding grid and industrial environments.
Lead Preparation & Soldering
We provide professional preparation of leads and taps, including accurate stripping, tinning, and soldering. All connections are made to guarantee strong electrical continuity and durability, reducing risks of failure in the field and improving consistency across production runs.
Electrical Upgrades
We perform electrical testing on each unit to ensure functionality before delivery. This includes turns ratio and polarity verification using equipment, along with visual and mechanical inspections. Testing is an integral part of our process, providing confidence, traceability, and compliance with customer requirements.
At Electric Grid Windings, our mission is to deliver high-quality toroidal transformer winding solutions with precision, reliability, and customer focus. We aim to support the U.S. electrical grid and industrial markets with products that meet the highest standards.
EGW Mission
We are committed to building long-term partnerships with customers by offering flexible, efficient, and reliable manufacturing services. Every project is handled with attention to detail and strict quality control.
Our Commitment
Our vision is to become a trusted partner for OEMs and manufacturers in the energy and power industries, recognized for our craftsmanship, consistency, and ability to adapt quickly to customer needs.
Our Vision