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NHN vs. AHA Insulation: Key Differences and Which to Choose

2025-08-25 | By: ZTELEC-www.ztelecgroup.com | 111click

In electrical equipment such as transformers and motors, the choice of insulation system directly impacts performance, lifespan, and safety. NHN and AHA are two common insulation material combinations, with significant differences in therma...

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What are composite insulation materials and how are they used?

2025-08-22 | By: ZTELEC-www.ztelecgroup.com | 185click

Composite insulation materials are insulation systems composed of two or more different materials, typically a conductive material (such as metal or carbon fiber) and an insulating material (such as a polymer or ceramic). This material stru...

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What's the difference between GPO-3 and FR4?

2025-08-21 | By: ZTELEC-www.ztelecgroup.com | 141click

GPO-3 sheet and FR-4 epoxy sheets are two core materials in the electrical insulation field. While they share some commonalities, their fundamental differences in material quality lead to significant differences in performance and applicati...

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10MVA 35kV All-Copper Dry-Type Three-Phase Power Transformer | Factory Direct

2025-08-20 | By: ZTELEC-www.ztelecgroup.com | 180click

Discover the 10MVA 35kV all-copper dry-type three-phase power transformer. High-capacity, high-voltage, factory-direct transformer for substations, industrial facilities, and renewable energy grid integration....

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GPO-1, GPO-2, and GPO-3: Characteristics and Applications

2025-08-20 | By: ZTELEC-www.ztelecgroup.com | 181click

GPO-1, GPO-2, and GPO-3 are all glass-reinforced unsaturated polyester resin laminates. While they belong to the same material system, they exhibit significant differences in formulation, performance, and applicable standards (grades). Over...

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Bakelite vs. Other Insulation Materials: Property Comparison and Application Scenarios

2025-08-19 | By: ZTELEC-www.ztelecgroup.com | 100click

In the field of electrical insulation, material selection directly impacts equipment performance, safety, and cost. This article will compare the core properties of bakelite with epoxy board and plastic insulation materials (PVC, PE, PP, et...

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