PRODUCT CATEGORY

Insulation laminated Sheet

Epoxy fiberglass sheet FR4/G10/G11/ 3240/GPO-3/Phenolic sheet/bakelite board

Insulation laminated Rod

Epoxy Glass Cloth Rod/Phenolic Cotton Cloth Rod/Bakelite Rod/G10 Rod

Insulation laminated Tube

Epoxy fiberglass tubes/Fiberglass winding tube/Phenolic cotton tube/Phenolic paper tube

Electrical Insulation Paper

DDP/Insulation paper/Crepe paper/Oil Duct Strip/Transformer Pressboad
Composite insulation material

Composite insulation material

DM/DMD/NMN/NHN/AMA/AHA/PET Composite insulation material

Insulation Components and Kits

Bakelite phenolic parts/Insulating Machined Parts/Insulation Gasket Kit/Laminated wood parts

About us

ZTelec Group is a comprehensive enterprise specializing in MV&HV electrical equipment and electrical insulation materials. Our insulation materials division—Xujue Electrical,which was established in 1958 and is one of the earliest manufacturers in China dedicated to the research, development, and production of electrical insulation materials. Our products are widely used in transformers, electric motors, new energy systems, and the aerospace industry.

Our products comply with IEC/GB standards and have passed UL certification, SGS, RoHS, REACH and MSDS testing reports.
67 years
67 years of experience in the insulation materials industry
180+ Countries
Exports to over 180 countries
5000+
Over 5,000 partner clients
38
36 Invention Patents

Application

Dry Type Transformer

Dry Type Transformer

Dry Type Transformer

High-quality insulation materials provided by ZTelec Group play a vital role in enhancing the safety and reliability of dry-type transformers, reducing dielectric loss, extending service life, and improving their ability to withstand harmonic loads.
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Oil-immersed Transformers

Oil-immersed Transformers

Oil-immersed Transformers

Based on years of experience in transformer manufacturing, we provide a one-stop solution for oil-immersed transformer insulation materials, effectively improving transformer safety performance, heat dissipation, short-circuit withstand capability, and structural stability.
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Electric Motor

Electric Motor

Electric Motor

We specialize in providing stable and reliable insulation material solutions for medium and large industrial motors, meeting the stringent requirements of industrial motors under high load, continuous operation, and complex working conditions.
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New Energy Vehicles

New Energy Vehicles

New Energy Vehicles

We provide high-quality insulation material solutions for new energy vehicle (NEV) drive motors, battery pack insulation systems, and automotive electronic circuit systems.
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High Voltage Generator

High Voltage Generator

High Voltage Generator

We provides a variety of high-quality insulation materials and components for high-voltage motors, generators, etc. Main application areas: wind power generator, thermal power plants, hydropower plants, and nuclear power plants.
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High And Low Voltage Switchgear

MV&HV Switchgear

MV&HV Switchgear

We provide high-quality, safe, and reliable electrical insulation materials for MV&HV switchgear and other power equipment, ensuring the stable operation of power transmission and distribution systems.
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Insulation Material Processing Industry

Insulation Material Processing Industry

Insulation Material Processing Industry

We supplies insulating sheets/ rods/tubes, and other raw materials for the insulation material processing industry. We also provide machined insulation components for electrical equipment and industrial applications.
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WHY CHOOSE US

Factory Direct Supply

With 67 years of manufacturing experience,OEM/ODM Services,7-15 day fast delivery

Full Certifications

Our company is certified to ISO 9001, IATF 16949, and EN 45545 standards, ensuring high product quality and compliance

Premium Performance

Equipped with a professional insulation materials research institute, ensuring product quality and reliability.

Trusted After-sales

Backed by an experienced international sales team, we offer full-cycle services to ensure smooth and worry-free cooperation.

Latest news

CWIEME Berlin 2026 Invitation
Apr 20,2026
CWIEME Berlin 2026 Invitation
The CWIEME Berlin will be held from May 19 to May 21, 2026, at the Messe Berlin in Germany. As the world’s largest and most influential exhibition dedicated to coil winding, transformers, electric motors, and electrical insulation materials, CWIEME Berlin brings together leading companies and professionals from across the global electrical manufacturing industry.
Filament Wound Tube End Rings in Dry-Type Transformers
Apr 20,2026
Application of Fiberglass Filament Wound Tube End Rings in Dry-Type Transformers
Fiberglass filament wound tube end ring is an insulating structural component manufactured from alkali-free glass fiber and epoxy resin using a filament winding process, then cut into ring or semi-ring shapes according to design requirements.
Pre-impregnated-DMD-for-dry-type-transformer
Apr 20,2026
DMD Insulation Materials for Dry-Type Transformers
In dry-type transformers (especially in Class F 155°C systems), DMD Insulation Material is a highly cost-effective composite insulating material. It consists of a layer of polyester film (M) sandwiched between two layers of polyester fiber non-woven fabric (D) with an adhesive.
g10 epoxy sheet
Apr 20,2026
G-10 insulation material temperature range and selection guide
G-10 insulation material temperature range and selection guide
G11 for Wind Turbine Generators
Apr 20,2026
G11 Epoxy Sheet Application in Small Wind Turbine Generators
G11 epoxy sheet, a high-performance epoxy glass fiber laminate, has become a preferred insulation solution for small wind turbine generators.
Oil-Immersed Transformers
Apr 20,2026
DDP insulation paper for Inter-Layer Insulation in Oil-Immersed Transformers
DDP Paper for Inter-Layer Insulation in Oil-Immersed Transformer Windings
FR4-G10-G11 epoxy sheet
Apr 20,2026
FR4/G10/G11 Fiberglass Sheet Density and Thermal Conductivity
FR4 vs G10 vs G11 epoxy sheet: Density and Thermal Conductivity Comparison Density Comparison (FR4 vs G10 vs G11)
pressboard
Apr 20,2026
Pressboard Selection for Dry-Type Transformers
Transformer Pressboard is an essential solid insulation material in oil-immersed transformers. Different transformer types vary significantly in voltage level, short-circuit withstand capability, thermal requirements, and mechanical stress. Therefore, the selection of pressboard must be optimized according to the transformer’s structure and operating conditions.

Our Partners

info@cnztelec.com
+86 16650273778
+86 16650273778
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