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33kv Lightning Arrester

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33kv Lightning Arrester Specification

Product Type
33KV Lightning Arrester

Material
Porcelain Housing, Metal Oxide Varistor (MOV)

Protection Class
Class I

Protection Mode
Surge Protection, Overvoltage Protection

Usage
Outdoor and Indoor, Power Distribution and Transmission Lines

Installation Options
Pole Mounted, Substation Mounted

Response Time
<1 nanosecond

Function
Limits overvoltage surges, Diverts lightning current to ground

Protection Level
Up to 33kV

Frequency (MHz)
50/60 Hz (Standard Power Frequency)

Height
400-450 mm

Weight
6-9 kg (approx.)

Creepage Distance
850 mm

Leakage Current
< 500 A

Maximum Continuous Operating Voltage (MCOV)
27 kV

Terminal Type
Clamp / Bolt

Rated Voltage
33 kV

Housing Color
Grey / Brown

Rated Discharge Current
10 kA

Mounting
Horizontal / Vertical

Enclosure Protection
IP65

Ambient Temperature Range
-40C to +60C

About 33kv Lightning Arrester

Distribution Class, Metal Oxide Gapless

Type: Surge Arrester

Specification:-

Rated Voltage: 33kV (kilovolts).
Rated Current: 10kA (kiloamperes) is common, but can vary.
Type: Typically Type 2, but can be Type 1 or Type 3 depending on the application.
Housing Material: Silicone rubber or other polymeric materials.
Core Material: Zinc oxide (ZnO) varistors are commonly used.
Frequency: 50-60 Hz.
Ambient Temperature: Typically rated for -40 deg C to +40 deg C.
Altitude: Generally suitable for altitudes up to 2000 meters.
Mechanical Strength: Polymer housing offers good mechanical strength and resistance to impacts

Comprehensive Surge Protection

Engineered for both transmission and distribution lines, this 33kV Lightning Arrester delivers robust surge protection, efficiently diverting high-voltage currents from lightning and power disturbances to the ground. The metal oxide varistor technology ensures a rapid response, providing lasting security even in harsh electrical environments.

Durable Construction for Extreme Conditions

Housed in high-grade porcelain and rated for continuous operation at 27kV, this arrester is suitable for installations where reliability under demanding conditions is crucial. The device is moisture-resistant (IP65), functions across -40C to +60C temperatures, and supports both horizontal and vertical mounting for versatile deployment.

FAQs of 33kv Lightning Arrester:

Q: How does the 33kV Lightning Arrester provide protection to power systems?

A: This lightning arrester detects and limits voltage surges caused by lightning or switching operations. It features a metal oxide varistor (MOV) that rapidly diverts excessive electrical current safely to the ground, effectively shielding transformers and other electrical equipment from overvoltage damage.

Q: What installation options are available for this 33kV Lightning Arrester?

A: The arrester supports both pole-mounted and substation-mounted installations. It can be mounted horizontally or vertically, making it versatile for a range of outdoor and indoor power distribution setups. Terminal connections can be made via clamp or bolt, depending on system requirements.

Q: When should this arrester be installed in a power network?

A: Install the lightning arrester during the systems initial setup or when upgrading surge protection for existing networks. Timely installation is crucial before the monsoon or stormy seasons to ensure maximum protection against unexpected voltage surges and lightning strikes.

Q: Where is this arrester most effectively used?

A: The arrester is ideal for outdoor and indoor deployment on distribution and transmission lines, especially in substations or on utility poles. Its weatherproof porcelain housing and IP65 protection rating ensure dependable performance even in demanding environments across India.

Q: What is the process for maintaining the 33kV Lightning Arrester?

A: Routine maintenance involves visual inspections for cracks, contamination, or physical damage to the porcelain housing, and checking for leakage current levels (which should remain below 500 A). Regular assessments ensure long-term effectiveness in surge protection.

Q: What are the main benefits of using this lightning arrester?

A: Key benefits include rapid response to voltage surges (<1 nanosecond), reliable overvoltage protection up to 33kV, suitability for harsh climates, and a long service life due to its robust construction. It significantly reduces the risk of electrical outages and equipment damage caused by lightning or switching surges.

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