Porcelain Surge Arresters

Surge Arresters - Porcelain

Overview

Jacob and Jacob offer an extensive range of state-of-the-art Porcelain Surge Arresters designed to safeguard power transmission and distribution systems up to 500kV from over-voltages. These arresters are crucial in protecting electrical infrastructures from atmospheric and switching-over voltages, ensuring operational stability and equipment longevity.

Characteristics

• Arrester Classes: Gapless Station and Gapless Distribution
• Voltage Compatibility: Up to 420kV
• Operating Frequency: 50/60 Hz
• Pressure Relief: Up to 65 kArms

Advantages

• Robust Cage Construction: Made of fiberglass-reinforced plastic (FRP) rods, providing high mechanical strength.
• Advanced Sealing System: Prevents moisture ingress and eliminates partial discharges.
• Directional Pressure Relief: In the rare event of an overload, the arrester allows safe arc escape, with strong porcelain preventing the ejection of internal parts.
• Seismic and Wind Resistance: Ideal for regions with heavy seismic activity and strong winds.
• Longevity and Eco-Friendly: Decades of trouble-free service using environmentally compatible materials.
• Design Variability: Available in different finishes, including Brown and ANSI-Grey Porcelains, to meet diverse aesthetic requirements.

Compliance with Standards

• IEC 60099-4
• CFE VA410-17
• NMX-J-321/4-ANCE-2013.

Applications

Designed for a variety of electrical components, including:

• Transformers.
• Circuit Breakers.
• Generators.
• Motors.
• Capacitors.
• Bushings.
• Switchgear.

Accessories

• Surge Counters
• Insulating Bases
• Cable Conductors
• Grading Rings (provided for Class 3 & 4 Arresters and for ratings of 144 kV and higher)

Types Offered

• Distribution Class:
  • For systems ranging from 2.7kV to 36kV.
• Station Class Arresters:
  • Line Discharge Class 2: 2.7kV to 144kV
  • Line Discharge Class 3: 2.7kV to 420kV
  • Line Discharge Class 4: 54kV to 420kV