Blog
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Designing Transformers for 100kHz+ Switching: Litz Wire vs. Triple Insulated Wire Trade-offs
When working on transformers running above 100kHz, skin effect and proximity effect are hard to avoid. For every new project, one of the first things I struggle with is picking between litz wire and triple insulated wire. Litz wire is made of many fine, individually insulated copper strands twist...Read more -
Unlocking High-Performance Power: The Benefits of ETFE Extruded Litz Wire
A coil running at 80 kHz does not fail all at once. It usually starts with a slow temperature rise, then insulation darkens, then the winding shorts. By the time the equipment trips, the damage is already done. ETFE extruded litz wire is aimed at that failure mode. The conductor uses multiple twi...Read more -
How rectangular copper magnet wire considerably improves EV motor’s efficiency?
The drive systems of EV are mainly made of 3 units, the electric drive assembly (motor), the energy control hub (electronic control system), and the power transmission hub (reduction gear). As heart of the vehicle, the motor converts electrical energy into mechanical energy through electromagneti...Read more -
Solderability Comparison: Polyurethane vs. Polyesterimide Coatings in Magnet Wire Applications
In the competitive magnet wire industry, coating selection directly impacts manufacturing efficiency, production costs, and end-product reliability. Polyurethane and polyesterimide enamels represent two distinct approaches to balancing solderability with thermal performance, and understanding the...Read more -
Performance Comparison and Application Analysis of Three Types of Fluoropolymer Insulated litz Wires
In view of the current market demand, the technical department of Tianjin Ruiyuan Electric Materials Co., Ltd. recently carried out a research and analysis on the characteristics and applications of three extruded litz wire products ：ETFE, FEP, PFA fluoroplastic insulation. Using 0.10mm single w...Read more -
PET Wrapping Litz Wire vs PI Wrapping Litz Wire: Which Is Right for Your Application?
When selecting litz wire for high-frequency applications, the choice of insulation wrapping plays a critical role in performance, durability, and cost-efficiency. Two of the most popular options on the market are PET (Polyethylene Terephthalate) wrapping litz wire and PI (Polyimide) wrapping litz...Read more -
What Makes Nomex® Paper Wrapped Winding Wire the Right Choice for Dry Type and Traction Transformers?
If you’ve ever opened up a transformer that’s been running for years without trouble, chances are you’ll find Nomex® paper wrapped wire inside. There’s a reason it shows up in dry-type units, traction transformers, substations, and even oil-filled coils – it just works, an...Read more -
Taped litz Wire for New Energy Electric Vehicles
These days, electric cars are selling really well worldwide. Most new models use 400V or 800V high voltage systems, and taped litz wire is a must-have material for all their electric components. We produce this litz wire with pure copper, wrapped with thin insulating demanded by customer. It wor...Read more -
FIW vs TIW – Which Insulated Wire Is Right for Your Transformer Design?
To begin with, in terms of structure: FIW wire is multi-layer coating. It is made up of multiple coats of insulating varnish, forming a very thick insulation layer which is treated as a single conductor. In contrast, TIW wire( triple insulated wire) is made of three separate layers of insulation,...Read more -
Analysis of Differences between Acetaldehyde Resin and Polyester Coatings in Enamel Copper Wire Applications
Several colleagues were discussing the solution to a enameled copper wire product in the conference room of Tianjin Ruiyuan. Is the enamel copper wire insulation material acetaldehyde resin or polyester? We got the answer after we research. The nature of the insulating varnish used in enamel copp...Read more -
Looking Ahead at Tianjin Ruiyuan Electric’s Future Five Years Through the Lens of “Hot and Cold” Debate
Between Cold and Heat: A Magnet Wire Company’s Magnetic Future The dust of the college entrance exam has just settled, and millions of students and parents are now embarking on another “battle”—filling out university applications. Terms like artificial intelligence, big data, an...Read more -
Why use litz wire in high frequency transformers?
High-frequency transformers are commonly used in new energy and industrial power conversion equipment. Standard solid copper wire loses a lot of power at high frequencies and hurts overall efficiency, which is why we use litz wire to improve transformer performance. These power losses are mainly ...Read more
