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High-Performance 35kV Insulators for Substations | China Suppliers & Factory
Product Overview
Designed to meet the rigorous demands of 35kV substations, our insulators serve two core functions: supporting conductors and securing them to pole towers or other substation structures, while strictly confining current flow along the conductor path and preventing leakage to grounded parts.
The store offers transparent round glass insulators with outstanding insulation stability, ideal for power engineering and industrial household lines. We also provide composite insulators featuring glass fiber epoxy resin pull-out rods and silicone rubber sheds. These composite models combine robust mechanical structure with advanced anti-pollution performance, making them a versatile choice for diverse substation working conditions.
Product Performance
The performance of our 35kV insulators is defined by four key dimensions: electrical properties, mechanical properties, thermal properties, and anti-aging properties, with the following standout advantages:
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1. High Mechanical StrengthThe glass fiber epoxy resin pull-out rods adopted in composite insulators deliver superior mechanical strength, capable of withstanding various mechanical loads during transmission line operation, and ensuring the stable operation of substation equipment and lines.
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2. Excellent Electrical PropertiesComposite insulators exhibit high voltage resistance and low leakage current, effectively preventing electrical faults in 35kV high-voltage systems. The electrical performance covers core indicators such as flashover characteristics, electrical stability under overvoltages, pollution flashover characteristics, and power frequency breakdown voltage in oil.
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3. Strong Pollution Flashover ResistanceThe silicone rubber sheds of composite insulators have excellent hydrophobicity and pollution flashover resistance. They can maintain reliable insulation performance even under harsh environmental conditions, significantly reducing the risk of substation line failures caused by pollution flashover.
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4. Superior Thermal & Anti-Aging PropertiesOur 35kV insulators are engineered with excellent thermal stability, capable of adapting to temperature changes in substation environments with stable hot and cold resistance. Meanwhile, the durable material composition ensures strong anti-aging performance, extending the service life of the products.
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5. Easy Installation & MaintenanceComposite insulators feature a lightweight and simple structure, facilitating quick installation and daily maintenance. Their long service life also helps lower the overall operation and maintenance costs of substations.
Applicable Scenarios
35kV Substations
As the core application scenario, the insulators are widely used to support busbars, disconnectors, circuit breakers and other key equipment in 35kV substations, realizing the electrical isolation between live parts and grounded structures.
35kV Overhead Transmission Lines
Matching the voltage level of substations, the insulators can be applied to 35kV overhead transmission lines connected to substations, ensuring the safe transmission of electric energy from substations to end users.
Industrial Power Supply Lines
The reliable insulation performance makes the insulators suitable for industrial power supply lines with 35kV voltage level, meeting the power demand of high-power industrial equipment.
Harsh Environment Power Systems
Thanks to the strong pollution flashover resistance of composite insulators, they can be used in power systems located in areas with heavy pollution, high humidity or large temperature differences, maintaining stable operation without frequent maintenance.
Frequently Asked Questions
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What are the two core functions of 35kV insulators in substations?
35kV insulators serve two primary functions: supporting conductors and securing them to pole towers or substation structures, and strictly confining current flow along the conductor path to prevent leakage to grounded parts.
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What is the difference between glass insulators and composite insulators?
Glass insulators (transparent round type) offer outstanding insulation stability and are ideal for power engineering and industrial household lines. Composite insulators, featuring glass fiber epoxy resin rods and silicone rubber sheds, combine robust mechanical strength with advanced anti-pollution performance, making them better suited for harsh or polluted environments.
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Why do composite insulators perform well in polluted environments?
The silicone rubber sheds used in composite insulators have excellent hydrophobicity, which prevents moisture and pollutants from forming a conductive layer on the surface. This significantly reduces the risk of pollution flashover and ensures reliable insulation even in heavily polluted, high-humidity, or temperature-extreme areas.
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Are these insulators suitable for overhead transmission lines as well as substations?
Yes. In addition to their core use in 35kV substations, these insulators are also applicable to 35kV overhead transmission lines connected to substations, ensuring safe and efficient electric energy transmission from substations to end users.
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How do 35kV composite insulators help reduce maintenance costs?
Composite insulators feature a lightweight and simple structure that enables quick installation and straightforward daily maintenance. Combined with their long service life and strong anti-aging properties, they significantly lower the overall operation and maintenance costs of substation systems over time.
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What key electrical performance indicators do your 35kV insulators cover?
Our 35kV insulators cover a comprehensive set of electrical performance indicators, including flashover characteristics, electrical stability under overvoltages, pollution flashover characteristics, and power frequency breakdown voltage in oil — ensuring reliable and safe operation across diverse high-voltage system conditions.
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