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Metal Oxide Lightning Surge Arrester

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


Metal Oxide Lightning Surge Arrester

1.Product Description:

Protection of medium/high voltage AC networks againt both, multiple atmospheric and switching overvoltages as well as Very Fast Transients(VFT).Suitable for the protection of transformers,transformers in arc furnace application,cables,generators,parallel to capacitor banks,and railway vehicles.Metal Oxide Surge Arrester can be used mechanically as support insulator or as suspension insulator in case of application as line arrester for indoor and outdoor installation.

2.Keystone:

The Metal-Oxide Surge Arrester(MOSA)is the most advanced overvoltage protector in the world. Due to make the varistor of core component mainly adopt MOSA. Compared with the conventional silicone carbide arrester,this prescription of the product improves greatly the Voltage-Current(U-I) characteristic of the metal-oxide varistor and increased through-current capability at over-voltage so as to bring a radical-changes for the characteristic of the MOSA.
Under the circumstance of normal operating voltage,the current through the MOSA just on microampere degree.When suffered from overvoltage,the MOSA'sexcellent none-linear characteristic will make the current through the MOSA increase to several thousand ampere,while the MOSA will be under the circulating state and release overvoltage energy so as to protecting the power transmission equipments against the damage caused by the overvoltage.

3.Usual Service Condition:

   3.1 Ambient air temperature within the range of -55℃to+55℃.

   3.2 Altitude not exceeding 2000m.
   3.3 Frequency of the A.C.power supply not less than 48Hz and not exceeding 62Hz.
   3.4 Power frequency voltage applied continuously between the terminals of the arrester not exceeding its continuous operating    voltage.
   3.5 Maximun wind speed not exceeding 35m/s.
   3.6 Earthquake intensity not exceeding 7 degrees.

4.Advantage (SWITOL MOSA):

   4.1 Low residual voltage
   4.2 Long protection distance

   4.3 High energy input capacity
   4.4 Stable U-I characteristic even after multiple strokes
   4.5 Proof against ageing
   4.6 Explosion and shatter-resistant design

   4.7 Pollution resisitant and UV-stable
   4.8 Housing resistant to rough handing
   4.9 Stable against shock and vibration
   4.10 High mechanical resistance

5.Technical Performance:

The technical performance of metal-oxide surge arrester is according to IEC60099-4,IEEE(ANSI)C62.11 and GB11032

Specifications:

Type MOA Rated Voltage  MCOV    Current Impulse Residual Voltage 
2ms Rectangular Current Impulse Withstand  
4/10 us High Current Impulse Withstand  
 
 1/4 us Lightning Current Impulse 8/20 us Lightning Current Impulse30/60 us Switching Current Impulse  
 kV(rms) kV(rms) kV(crest) kV(crest) kV(crest) A KA(crest)
 YH10W-3 3 2.55 11.3 9 8.9 250 100
 YH10W-6 6 5.1 22.6 18 16.8 250 100
 YH10W-9 9 7.65 33.7 27 23.8 250 100
 YH10W-10 10 8.4 36 30 23 250 100
 YH10W-11 11 9.4 40 33 30 250 100
 YH10W-12 12 10.2 42.2 36 27 250 100
 YH10W-15 15 12.7 51 45 38.5 25 100
 YH10W-18 18 15.3 61.5 54 46.2 250 100
 YH10W-21 21 17.0 71.8 83 54.2 250 100
 YH10W-24 24 19.5 82 72 62 250 100
 YH10W-27 27 22.0 92 81 69.8 250 100
 YH10W-30 30 24.4 102 90 79 250 100
 YH10W-33 33 27.5 112 99 86.7 250 100
 YH10W-36 36 29.0 123 108 92.4 250 100
 

6.Our Special Service:

   6.1 OEM,ODM is available

   6.2 Supply technical and price support 

   6.3 Supply test report if necessary 

   6.4 Customized type surge arrester is available 

   6.5 Try our best to meet customers' requirement




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