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Polymer Arrester
Polymer Surge arreter 66 kV/10kA
Posted:2016-12-08 | Browse: 630 【Close this page

Polymer Surge arreter

Polymer Surge arreter 66 kV/10kA

1.Product Type:

Surge arrester can be divided into many types according to its application as below:

Distribution type,power station type,protecting capacitor type,transformer neutral point type ,protecting motor type,electrified railway type,line type.etc.

Line type surge arrester can be divided into series spacing type and without spacing type and in series spacing type can be divided into supporting spacing and sure air spacing type.

2.Main Product Features:

2.1It has a series of outstanding features such as good protection performance,high circulating capacity ,less reaction time,smooth steep-wave characteristic.

2.2 Excellent silicon rubber material is used in composite housing,possessing good anti-tracking and ageing-resistant performance as well as good hydrophobicity ,ion transferring and high pollution proof.

2.3 Special technique and internal structure are used in composite housing surge arrester,possessing higher technical strength and good explosion-proof performance.

3.Service Conditions:

3.1 Ambient Temperature:≥ - 40 ℃≤ + 50 ℃ ;

3.2 Altitude: ≤ 1000m;

3.3 Frequency ≥ 48 Hz ≤ + 50 Hz;

3.4 Power Frequency Voltage exerted long-time on surge arrester shall not exceeds continuous operation voltage;

3.5 Earthquake intensity is not more than 7 grades;

3.6 Wind speed is not more than 35mm/s;

Usage under exceptional conditions shall be negotiated by both parties.


Polymer Surge arreter

5 Technical Character:

5.1 Type designation : Polymer type

5.2 Applicable standard :IEC 60099-4

5.3 Class (outdoor/indoor):Outdoor

5.4 Ambient temperature : -40 to +55 °c

5.5 Max. design altitude :2500m

5.6 Pollution level :Very heavy

5.7 Design siesmic acceleration :0.35

5.8 max. permissible wind velocity :50 m/s

5.9 Relative humidity 90%

5.10 Solar radiation 1.1 w/m²

5.11 Nominal system voltage66kV

5.12 Max. system voltage :72.5kV

5.13 Rated voltage (Ur) :72

5.14 Continuous operating voltage (Uc):58 KVrms

5.15 Nominal discharge current (In) : 10 KApeak

5.16 Line discharge class (LDC) : 2

5.17 Energy absorption capability (2 Impulse) :≥5.2 Kj/KV(Ur)

5.18 High current impulse withstand :600Apeak

5.19 Duration of peak:2000us

5.20 High current impulse withstand : 100kA

5.21 lightning impulse residual voltages (8/20 µs): 5 KA ≤172KV peak ,10 KA ≤186 KV peak,

20 KA≤ 208 KV peak

5.22 Switching impulse residual voltages (30/60 µs): 500(A) ≤146KV peak; 1000(A) ≤152 KV peak; 2000(A) ≤159KV peak

5.23Temporary overvoltage withstand (Prestressed) 1 Second 83 KVrms ; 10 Second 79.2 KVrms ; 100 Second75.6KVrms

5.24Max. internal partial discharge at 1.05Uc <10 pc

5.25 Power-frequency withstand voltage : Dry140kV ; Wet 130 kV

5.26 lightning impulse withstand voltage: Dry 316kV; Wet330 kV

5.27Rated frequency: 50-60 Hz.

5.28Reference voltage of 1mA DC (U1mA DC) 1mA ≥103 KVDC

5.29Diameter : φ210/φ174 mm

5.30Height : 896 mm

5.31 Total weight of arrester :35kg

5.32Total creepage distance of arrester :2450mm

5.33 Total arc distance of arrester770mm

5.34 Specified Short term Load (SSL) :4500 N.m

5.35 Specified Long term Load (SLL) : 12200 N.m

5.36Mean value of Breaking Load (MBL): 5400N.m

5.37Torsional strength : 50N.m

5.38 Tensile strength: 4.1KN

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