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Substation Station Class Surge Arrester , High Performance Metal Oxide Surge Arrester

Categories Station Class Surge Arrester
Brand Name: Changgong
Model Number: Metal Oxide Surge Arrester
Certification: ISO9001/ ISO14001/ OHSAS18001
Place of Origin: China
MOQ: No Limitation
Price: from 15 USD -2500 USD
Supply Ability: 10kV-300,000pcs per year ,35kV-60,000pcs per year110kV-25,000pcs per year,220kV-12,000pcs per year
Delivery Time: According to the type and quantity of products
Packaging Details: Carton or wooden cases
Product Name: Station class surge arrester
Material: Porcelain-housing,polymer-housing,tank,resistor
Type 1: Porcelain-housed,polymer-housed,and GIS
Type 2: 10kV-500kV Metal Oxide Surge Arrester
Type 3: 35kV-500kV GIS arrester
Application: In power systems, protect electrical equipments from being damaged by overvoltage.
Standard: GB11032,JB/T8952,IEC60099-4
Tests: All type tested and deisng tested
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Substation Station Class Surge Arrester , High Performance Metal Oxide Surge Arrester


Substation Station Class Surge Arrester , High Performance Metal Oxide Surge Arrester


Description:


In power systems, metal oxide surge arresters are used to protect electrical equipments from being damaged by overvoltage.


The surge arrester presents a high resistance state at normal operating voltage. Under the over-voltage impulse, it would be a low resistance status and release the surging current into the earth quickly so as to make the residual voltage of the equipments which are connected in parallel with it to be controlled within the required voltage and ensured the insulation and safety of the equipments.


The type of arresters as follows:


Specifications:

Main electrical parameters of 0.22kV-220kV polymer-housed surge arrester:


Type

Rated voltage

kV r.m.s

Nominal voltage of the system

kV r.m.s

Continuous operating voltage

kV r.m.s

D.C reference voltage not less than ≥kVResidual voltage ≤ kV

2ms rectangular impulse current withstand

A

4/10μs high current impulse withstand kALine discharge

30/60μs

Switching impulse

8/20μs

Lightning impulse

1/10μs steep current impulse
YH10W-204/523W20422015929645253259410001003
YH10W-216/562W216220168.531447856263010001003
YH10W-102/266W10211079.614822626629710001003
YH10W—108/281W1081108415723928131510001003
YH5W-51/134W51354173114134154600652
YH5W-52.7/134W52.7354274.5114134154600652
YH5W-17/45171013.62438.34551.840065-
YH5WS-17/50171013.62542.55057.510065-
YH1.5W-0.50.500.380.421.2-2.6-10025-
YH1.5W-0.280.280.220.240.6-1.3-10025-

Applications:

In power systems, metal oxide surge arresters are used to protect electrical equipments from being damaged by overvoltage.

Service conditions as follows:

  1. ambient air temperature within the range of -40℃to +40℃;
  2. solar radiation not exceeding 1.1KW/m2;
  3. altitude not exceeding 2,000m;
  4. frequency of the a.c.power supply not less than 48 Hz and not exceeding 62 Hz ;
  5. power -frequency voltage applied continuously between the terminals of the arrester not exceeding its continuous operating voltage ;
  6. earthquake intensity ≤8;
  7. wind speeds ≤35 m/s;

Competitive Advantages:

Main characteristics of arresters

a. Excellent protection feature

Metal -oxide surge arrester is used to protect electrical equipment in power systems from being damaged by overvoltage .As the core component of an arrester ,metal -oxide resistors have a very good nonlinear volt-ampere characteristic ,which limits the overvoltage amplitude and releases the energy of overvoltage intrudes and the current passing through resistor increases rapidly .After that ,the resistor restore a high impedance state ,making the power system work properly ,through which only micor-ampere current passes under the normal working voltage .Due to such a characteristic ,the arrester can be designed to be a structure without gaps ,thus making the arrester have features of small size ,light weight and good protection .


b. High discharge current capability

The discharge current capability of metal-oxide surge arresters indicates that the arredters can absorb the energy of various lightening overvoltage and switching overvoltage .

This capability of our products meets the national standard completely and even better than the standard .Indices such as 4/10µs high current impulse withstand ,2ms rectangular impulse current withstand ,line discharge class all reach the domestic advanced level .


c. Strong power-frequency voltage withstand

Because of various reasons such as single-phase grounding ,long-line capacitance effect and load rejection in power system ,the power -frequency voltage may rise or temperature overvoltage with high amplitude may appear ,and the arrester has the ability to withstand the rise of power-frequency voltage to a certain extent in a given period of time .This is the power -frequency overvoltage versus time characteristic of the arrester.


d. Good contamination withstand

Metal-oxide surge arresters without gaps have good performance in contamination withstand because it is unnecessary to consider the influence on gap discharge voltage .The minimum specific creepage distance of the insulated housing of arresters that our company mass- produces is as follows :

20mm/KV for medium polluted conditions of Grade Ⅱ

25mm/KV for heavy polluted conditions of Grade Ⅲ

31mm/KV for very heavy polluted conditions of Grade Ⅳ


Quality Substation Station Class Surge Arrester , High Performance Metal Oxide Surge Arrester for sale
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