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Electric Power Surge Arrester

Electric Power Surge Arrester
1.Good protection performance,high circulating capacity
2.Excellent silicon rubber material
3.Special technique and internal structure
Product Details


Electric Power Surge Arrester


1. About Surge Arrester 

YONGDE Surge Arresters can be applied to a variety of systems including substation equipment,

railway power system and power distribution units ranging from 0.28kV to 500kV systems. 
These surge arresters demonstrate excellent protection properties. Our surge arresters incorporate

non-linear resistor ZnO elements with superior non-linear current- voltage characteristics,

high quality and reliability. Metal oxide type surge arresters offer such special features 
inherent in the gapless structure, such as a quick response to surge voltage,

high energy dissipation capability, safe operation, compactness / lightweight and freedom from pollution.


2. Surge Arrester Technical Parameters

TypeYH5W5-27/72

Rated voltage---------kV274/10µS High current impulse kA 65
MCOV  ----------------kV22Lightning impulse withstand kV150
Nominal Current-------kA5Power frequency voltage withstand(dry/wet)kV70
Residual voltage of steep impulse----at 5kA(kV)780.1S TOV--------------kV32.4
8/20µS Residual voltage of lightning impulse current kV(Peak value)-----at 5kA(kV)721S TOV----------------kV31.05
Residual voltage of switching impulse current kV (peak value)----at 1kA  (kV)/10S TOV---------------kV29.7
1mA D.C reference voltage (kV)38.51200S TOV-------------kV27
Line discharge level1Creepage distance ----mm915
2mS long duration impulse current A250Material employed in series non-linear resistorZinc Oxide 


3. Lightning Arrestor Working Condition

Environment temperature: -40--+40 degree
altitude:<1000m
48HZ<Rated frequency<62HZ
Power frequency voltage should not be more than continuous running voltage
Max wind speed should be less than 35m/s
Earthquake intensity should be less than 7 degree
If used in contamination area, should be noted in advance.


4. Detail Shipping

Product Name:27kV,5kA ,Lightning arrester(L,A)Item No:YH5W5-27/72
Size:370mmX130mmX300mm with 3pieces per cartonPacking:carton with polyfoam insert parts
MOQ:1setsproduction capacity: 500 sets per day
Payment Terms:T/T 30%before shipment,balance 70% L/C after received B/LWeight:7.0kg/carton
Trade Terms:FOB,CIF(or we can discuss details)Loading Port:Ningbo/ Shanghai(Or as customer requirement)
Loading Ability:20'GP2426sets
40'GP3913sets


5. Product's Characteristics: 

   5.1 The Core column applied winding structure, Polymer Housed core pillar molded on the core column, with almost no     internal air gap, and outstanding sealing performance Simple in structure, small in size and light in weight. 

  5.2 Polymer Housed with silicone rubber, explosion-proof ZnO varistor as the core component is largein flow capacity.

  5.3 International standard IEC 60099-4 and ANSI 62.22, and with high reliability. With fully insulated tops,the product can     be applied to the complete cabinet installation, which can reduce the designing size of cabinet. 

    5.4  Products with detachment device can provide signals for quitting operation when failure occurs, avoiding arrester       explosion, and it is maintenance-free. 

   5.5 Polymer housed products with a six CTI level,  creepage  distance meets the requirements of IV level in heavy    pollution areas.





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