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PRHLA Series Porcelain-housed Lightning Arrester
  • PRHLA Series Porcelain-housed Lightning Arrester
Atributos clave
Marca ROCKWILL
Número de modelo PRHLA Series Porcelain-housed Lightning Arrester
voltaje nominal 220kV
Serie PRHLA Series
Descripciones de productos del proveedor
Descripción

Overview

The porcelain-housed lightning arrester uses a porcelain bushing as the external insulation, with a single-column or multi-column resistor disc column as the core, featuring an independently sealed gas space, with voltage levels covering 10kV-1,000kV AC.

Features

Excellent Insulation Performance

Strict material selection and production in strict accordance with technical requirements ensure the strength and accuracy of the porcelain-housed lightning arrester, further enhancing its insulation performance.

High Bending Strength and Shock Resistance

The internal structure is designed reasonably, using high-quality semiconductor materials, high-strength rods, and metal pressure plates to fix the resistor discs within concentric circles, making the overall structure of the lightning arrester more robust.

Reliable Sealing

A double sealing structure is adopted, such as the core being encapsulated by silicone rubber. This design can completely solve the sealing problem of the porcelain housing and prevent internal components from moisture or contamination.

Aging Resistance and Long Life

The porcelain-housed material has good weather resistance and aging resistance, able to withstand long-term erosion from UV rays, ozone, heat, and humidity, maintaining stable insulation performance and extending the service life of the lightning arrester.

 

Technology parameters

Project

Value

rated voltage(AC)

10kV

20kV

35kV

66kV

110kV

220kV

330kV

500kV

750kV

1000kV

4/10µs High Current(kA)

100

8/20µs Repetitive Charge Transfer Qrs (C)

0.4~0.8

2ms Repetitive Charge Transfer Qrs(C)

0.8~6.0

200µs Repetitive Charge Transfer Qrs(C)

0.3~2.4

AC Aging Coefficient at 95% Charge Ratio

<0.9

 


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