Grading Ring

Product Introduction

A grading ring, it is similar with corona ring, which is also used on high voltage equipment. But they encircle insulators rather than conductors.

Although they may also serve to suppress corona, grading rings main purpose is to reduce the potential gradient along the insulator, preventing premature electrical breakdown.

The grading ring is widely used for insulators industries.

The grading ring surrounds the end of the insulator next to the high voltage conductor.

It reduces the gradient at the end, resulting in a more even voltage gradient along the insulator, allowing a shorter, cheaper insulator to be used for a given voltage.

Grading rings also reduce aging and deterioration of the insulator that can occur at the high voltage end due to the high electric field there.

Product Features

• High moistureproof

• Anti-causticity

• High strengh

• Excellent silvery bright finish

• Good shielding advantage

• Tasteless&non-poisonous

• Competitive price with excellent quality

• Customized sizes and specifications/OEM is available

Application

• Transmission line Insulators Corona Rings/Grading rings/Guard rings Protection

• HV Surge Arresters(lightning Arresters)Aluminum Tube rings

• High Voltage Capacitor Banks Corona Shields/Grading rings

• GIS (Gas Insulated Switchgear) Corona Rings/Grading rings

• Power transformer/High Voltage current transformers Corona shields

• GIS (gas insulated switchgear) Aluminum Conductors

  
  

Technical Parameter