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Resin-Impregnated Straight Stator Bar

After 360° / 540° transposition and gel impregnation, the product achieves an overall flat structure with high dimensional accuracy in both width and thickness directions. It features excellent sealing performance with no gaps, high strength, and strong rigidity. The maximum length of the stator bar can reach 10 meters, and the gel-impregnated core length can reach up to 6 meters.

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Technical Specifications

Technical Specifications
Item	Specification
Product Name	Gel Impregnated Straight Stator Bar
Conductor Material	Oxygen-free copper (≥99.95%)
Structure	Straight stator bar with gel impregnation
Insulation System	High-performance composite insulation + gel curing
Transposition Angle	360° / 540° (optional)
Maximum Bar Length	Up to 10 meters
Gel Impregnated Core Length	Up to 6 meters
Dimensional Accuracy	High precision in width and thickness directions
Surface Condition	Smooth, uniform, void-free
Sealing Performance	Excellent, no internal gaps
Mechanical Strength	High rigidity and structural stability
Dielectric Strength	≥ 3.0 kV
Insulation Resistance	≥ 100 MΩ·km
Thermal Class	Class F / Class H
Operating Temperature	-40°C to +180°C
Bending Performance	Controlled forming, no insulation damage
Standards	IEC / IEEE / Customized

Application

This product is widely used in high-voltage and high-power electrical machines requiring excellent mechanical stability and insulation integrity, including:

Large and medium-sized high-voltage motors

Hydro-generators and turbo generators

Industrial drive systems in metallurgy, mining, and petrochemical industries

Traction motors for rail transit systems

Heavy-duty electrical equipment operating under long-term continuous load

High-reliability stator winding systems for energy conversion equipment

FAQs

Q1: What are these products mainly used for?

These products are mainly used in high-voltage and high-power rotating electrical machines, including large and medium-sized generators, turbo generators, and industrial high-voltage motors requiring reliable stator winding systems.

Q2: What is the difference between transposed bars, gel-cured bars, and stator coils?

Transposed bars are used to reduce eddy current losses in high-voltage windings, gel-cured straight bars provide high structural stability through insulation curing, and stator coils are pre-formed winding components used in generator assembly systems.

Q3: Can these products be customized according to design requirements?

Yes. All products can be customized in terms of dimensions, conductor structure, insulation system, transposition angle, curing process, and electrical performance according to customer technical drawings and application requirements.

Q4: What insulation systems are used in these products?

Common insulation systems include mica-based composite insulation, epoxy resin systems, and gel-impregnated or steam-cured insulation structures, depending on the product type and application requirements.

Q5: What are the key advantages of these products?

They offer high electrical reliability, excellent insulation performance, strong mechanical strength, good thermal stability, and low partial discharge characteristics, making them suitable for long-term operation in demanding power generation environments.