Gas Discharge Tube Surge Arrester

Gas Discharge Tube Surge Arresters utillzed a gas-filled discharge tube(GDT).The GDT works as an insulator but can be automatically conductive in very short time when the lightening current flows into the protector,then the lightening current will be diverted to earth viaouter contact and grounding means.Once the suge subsided,the GDT rever to its oringinal condition,and be ready for next spark-over.
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Description

FEATURES & APPLICATION

 

Gas Discharge Tube Surge Arresters utillzed a gas-filled discharge tube(GDT).The GDT works as an insulator but can be automatically conductive in very short time when the lightening current flows into the protector,then the lightening current will be diverted to earth viaouter contact and grounding means.Once the suge subsided,the GDT rever to its oringinal condition,and be ready for next spark-over.

Surge arresters can work repeatedly if on damage done to the GDT and the miantenance is easy since the GDT is replaceable.It has the characteristics of wide frequency range,low VSWR,low insert loss and easy installation.(Some modenls were developed with CITEL).

tECHNICAL CHARACTERISTICS

 

Temoerature Range -55℃~+155℃
Frequency Range Dc~2500MHz (Segmented according to user needs)
Impeddance 50Ω/75Ω
Vibration 100 m/s² ( 10~500Hz ),10g
Salt spray test 5% NaCl solution; test time ≥ 48h
Waterproof sealing IP 67

tECHNICAL CHARACTERISTICS

 

Connectors type 7/16,N,UHF,BNC,TNC
Insulation resistance 5000MΩ
D.C.Breakdown voltage 90V/ 150V /250V / 500V
Peak Power 25W/ 70W / 190W /790W
Discharge Current 20 KA ( 8/20 US)
V.S.W.R ≦1.20 (1.15)
Insertion Loss ≦ 0.25 dB
Durability ≥500 (cycles)

MATERIAL & PLATING

 

Body Brass/ CuSnZn3,Nickel plated
Pin contact Brass/Gold,Silver plated 
Socket contact Tin Copper/ Gold or Silver plated
Resilient contact Tin Copper/CuSnZn3 plated
Insulators PTFE
O-ring sealing 6146 silicone rubb

APPLICABLE STANDARDS

 

MIL-C-39012;CECC 22110.

Pb, Hg, Cd, Cr6, PBB, PBDE in all products and raw materials are both EuRoHS and China RoHS compliance.

APPLICATIONS

 

Our gas discharge tube surge arresters are widely used in various industries, including:

Power Systems: Transmission lines, distribution networks, substations

Telecommunications: Base stations, communication lines, signal systems

Railway & Transportation: Signaling systems, trackside equipment

Oil & Gas / Petrochemical: Hazardous and explosion-proof environments

Renewable Energy: Solar power systems, wind farms

STRUCTURE & DESIGN

 

The gas discharge tube surge arrester mainly consists of:

Discharge Tube: Gas-filled chamber that conducts during overvoltage

Electrodes: High-conductivity, erosion-resistant materials

Insulating Housing: Ceramic or composite structure for insulation and strength

Arc-Extinguishing System: Efficient gas exhaust design to eliminate arc quickly

Connection Components: Terminals, mounting accessories, and sealing parts

 

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