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Steam-Cured Stator Coil

The insulation structure of the product features uniform width and thickness dimensions. After cutting, the insulation layer shows no deviation in either direction. The curing is well controlled, providing high rigidity and excellent dielectric strength. The breakdown voltage performance is high, and the dielectric loss is low. The overall quality meets premium-grade product standards.

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Technical Specifications

Technical Specifications
Item	Specification
Product Name	Steam-Cured Finished Stator Coil
Conductor Material	Oxygen-free copper (≥99.95%)
Structure	Pre-formed stator coil with steam curing process
Insulation System	High-performance mica-based composite insulation
Curing Process	Steam curing / pressure curing
Dimensional Accuracy	High precision, uniform structure
Insulation Thickness	Customizable according to design
Dielectric Strength	≥ 3.0 kV
Insulation Resistance	≥ 100 MΩ·km
Partial Discharge Level	Low / controlled
Breakdown Voltage	High (meets generator standards)
Mechanical Strength	High rigidity and structural stability
Thermal Class	Class F / Class H
Operating Temperature	-40°C to +180°C
Surface Quality	Smooth, uniform, void-free insulation surface
Bending Performance	Controlled forming, no insulation damage
Standards	IEC / IEEE / Customized

Application

This product is widely used in high-voltage and high-power rotating electrical machines requiring high insulation reliability and mechanical strength, including:

Steam and hydro power generators

Large and medium-sized turbo generators

High-voltage industrial motors

Power plant excitation and stator winding systems

Metallurgy, mining, and petrochemical drive equipment

Heavy-duty electrical machines operating under continuous load conditions

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.