Railway Polymer Gapless Surge Arrester
Product introduction:
Polymer-housed metal oxide surge arrester (MOA) combines advantages of organic insulation material and porcelain-housed MOA. It is of good electrical performance, high dielectric strength, resistance to high/low-temperature, to aging, as well as explosion-proof, excellent chemical stability, and hydrophobicity. Polymer housing is made of high-quality silicone rubber, formed by integral moulding and curing process which benefites sealing performance, service life and lead time.
Advantage:
1/ Low partial discharge;
2/ Low residual voltage;
2/ High dielectric insulation level;
3/ Tolerance to high/low temperature;
4/ Explosion-proof;
5/ Anti-corrosion;
6/ Anti-aging;
7/ Shorter lead time (Ex-work 1 week+).
8/Compact design
Standard Technical Data:
Below info. only for your reference, all data shall be specified and determined by technical specification and customer demand.
A: Nominal system voltage ≤55kV
| Item | Description | | Offered | Offered | Offered | Offered |
| 1 | Manufacture/ Country of Origin | | Xi'an Shendian/ China |
| 2 | Model | | YH5WT-42/105 | YH5WT-42/110 | YH5WT-42/120 | YH5WT-84/240 |
| 3 | Applicable standard | | IEC 60099-4 | IEC 60099-4 | IEC 60099-4 | IEC 60099-4 |
| 4 | Type | | Outdoor, ZnO, gapless |
| 5 | Norminal voltage of system | kV | 27.5 | 27.5 | 27.5 | 55 |
| 6 | Earthing system | | Effectively earthed |
| 7 | Rated frequency | Hz | 50/60 | 50/60 | 50/60 | 50/60 |
| 8 | Rated voltage of SA | kV | 42 | 42 | 42 | 84 |
| 9 | Maximum continuous operating voltage | kV | 31.5 | 31.5 | 34 | 68 |
| 10 | Power frequency reference voltage | kV | 58 | 60 | 65 | 130 |
| 11 | - at reference current of
Note: State peak value or rms. | mA (D.C) | 1 | 1 | 1 | 1 |
| 12 | Nominal discharge current | kA | 5 | 5 | 5 | 5 |
| 13 | (a) Lightning impulse | kV | ≤105 | ≤110 | ≤120 | ≤240 |
| (b) Steeping impulse | kV | ≤118 | ≤127 | ≤138 | ≤276 |
| (c) Switching impulse | kV | ≤89 | ≤94 | ≤98 | ≤196 |
| 14 | Material employed in series non-linear resistor | | ZnO etc. | ZnO etc. | ZnO etc. | ZnO etc. |
| 15 | - Material | | Polymer | Polymer | Polymer | Polymer |
| - Minimum creepage distance | mm/kV | 25/31 | 25/31 | 25/31 | 25/31 |
| 16 | - HV terminal | | hot zip screw | hot zip screw | hot zip screw | hot zip screw |
| - earth terminal | | hot zip screw | hot zip screw | hot zip screw | hot zip screw |
| 17 | Diameter of bushing sheds | mm | 128 | 128 | 128 | 195 |
| 18 | Height | mm | 525 | 525 | 525 | 1296 |
Schematic diagram:
B: Nominal system voltage ≤110kV
| Item | Description | | Offered | Offered | Offered | Offered |
| 1 | Manufacture/ Country of Origin | | Xi'an Shendian/ China |
| 2 | Model | | YH5WT-100/260 | YH5WT-100/275 | YH5WT-100/290 | YH5WT-100/295 |
| 3 | Applicable standard | | IEC 60099-4 | IEC 60099-4 | IEC 60099-4 | IEC 60099-4 |
| 4 | Type | | | Outdoor, ZnO, gapless | Outdoor, ZnO, gapless | Outdoor, ZnO, gapless |
| 5 | Norminal voltage of system | kV | 110 | 110 | 110 | 110 |
| 6 | Earthing system | | Effectively earthed |
| 7 | Rated frequency | Hz | 50/60 | 50/60 | 50/60 | 50/60 |
| 8 | Rated voltage of SA | kV | 100 | 100 | 100 | 100 |
| 9 | Maximum continuous operating voltage | kV | 73 | 73 | 73 | 73 |
| 10 | Power frequency reference voltage | kV | 145 | 150 | 158 | 160 |
| 11 | - at reference current of
Note: State peak value or rms. | mA (D.C) | 1 | 1 | 1 | 1 |
| 12 | Nominal discharge current | kA | 5 | 5 | 10 | 10 |
| 13 | (a) Lightning impulse | kV | ≤260 | ≤275 | ≤290 | ≤295 |
| (b) Steeping impulse | kV | ≤291 | ≤316 | ≤325 | ≤330 |
| (c) Switching impulse | kV | ≤221 | ≤234 | ≤247 | ≤251 |
| 14 | Material employed in series non-linear resistor | | ZnO etc. | ZnO etc. | ZnO etc. | ZnO etc. |
| 15 | - Material | | Polymer | Polymer | Polymer | Polymer |
| - Minimum creepage distance | mm/kV | 25/31 | 25/31 | 25/31 | 25/31 |
| 16 | - HV terminal | | hot zip screw | hot zip screw | hot zip screw | hot zip screw |
| - earth terminal | | hot zip screw | hot zip screw | hot zip screw | hot zip screw |
| 17 | Diameter of bushing sheds | mm | 195 | 195 | 195 | 195 |
| 18 | Height | mm | 1296 | 1296 | 1296 | 1296 |
Schematic diagram:
Reference:
1/ Shendian MOA is widely used in China EHV (Extra hight voltage) projects of State Grid, Southern Power Grid.
2/ Supplied MOA to ABB/Siemens/Schneider more than 20 years, as well as other capacitor/switchgear manufacturers.
3/ Shendian MOA has been exported to more than 30 counties all over the world.
Product Tags:
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GB 11032 Polymer Lightning Surge Arrester Gapless For Electrical Railway Images
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