Porcelain Insulator

Products Description

Designed for both indoor and outdoor use, they are ideal for power distribution and transmission lines, substations, and switchgear. Their glazed surface prevents moisture accumulation and ensures minimal leakage currents even under extreme environmental conditions.

Key Features:

• High Dielectric Strength: Excellent electrical insulation up to 132 kV and beyond.
• Weather-Resistant Glazing: Prevents dust and moisture buildup, ensuring long-term reliability.
• Thermal and Mechanical Stability: Withstands high temperatures and mechanical loads.
• Corrosion-Resistant: Performs consistently in polluted and coastal areas.
• Wide Application Range: Suitable for distribution, transmission, and substation equipment.

Applications:

• Power transmission and distribution lines
• Substations and circuit breakers
• Transformers and switchgear assemblies

How Porcelain Insulators Work:

An insulator’s primary function is to stop electric current from traveling in unexpected directions. This is accomplished by porcelain insulators through:

High Dielectric Strength: Porcelain can tolerate a high electric field without disintegrating and letting current flow through because of its exceptionally high dielectric strength. In order to isolate high-voltage conductors, this is essential.
High Insulation Resistance: By providing a very high electrical resistance, it successfully reduces leakage currents from the live conductor to the ground potential support structure (pole or tower).
Creepage Distance: The distinctive umbrella-like shapes known as “sheds” or “skirts” are frequently used in the construction of porcelain insulators. The creepage distance, or surface leakage path, is widened by these sheds. In unclean or humid surroundings, a greater creepage distance prevents flashovers by making it harder for pollutants and moisture to create a continuous conductive path.
Mechanical Strength: In addition to offering electrical isolation, insulators must be able to sustain the weight and strain of the conductors above them mechanically. They must also be able to tolerate vibrations, wind loads, and ice loads. Because of its natural compressive strength and hardness, porcelain can withstand these mechanical forces.
Chemical and Thermal Stability: Porcelain is resistant to deterioration from environmental elements such as UV rays, chemicals, and pollutants since it is chemically inert and has good thermal stability, which means it maintains its qualities across a broad temperature range.

Porcelain Insulators’ Benefits:

• Elevated Dielectric Power: Outstanding electrical insulating qualities that can resist high volts.
• High mechanical strength: Capable of withstanding mechanical forces and supporting hefty conductors.
• Good Thermal Stability: Preserves characteristics across a broad temperature spectrum.
• Chemical Inertness: Able to withstand the majority of chemical attacks and contaminants found in the environment.
• UV Resistance: Long service life outside is ensured by not being harmed by ultraviolet radiation from sunshine.
• Long Lifespan: Porcelain insulators have a 25–50 year lifespan when properly designed and maintained.