66kV Transmission Polymer With Gap 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;
3/ High dielectric insulation level;
4/ Tolerance to high/low temperature;
5/ Explosion-proof;
6/ Anti-corrosion;
7/ Anti-aging;
8/ Shorter lead time (Ex-work 1 week+).
Standard Technical Data:
Below info. only for your reference, all data shall be specified and determined by technical specification and customer demand.
| Item | Description | | Offered |
| 1 | Manufacture/ Country of Origin | | Xi'an Shendian/ China |
| 2 | Model | | YH5CX-75/218 |
| 3 | Applicable standard | | IEC 60099-4 |
| 4 | Type | | Outdoor, ZnO, gapless |
| 5 | Norminal voltage of system | kV | 66 |
| 6 | Earthing system | | Effectively earthed |
| 7 | Rated frequency | Hz | 50/60 |
| 8 | Rated voltage of SA | kV | 75 |
| 9 | Power frequency reference voltage | kV | 117 |
| 10 | - at reference current of
Note: State peak value or rms. | mA (D.C) | 1 |
| 11 | Nominal discharge current | kA | 5 |
| 12 | (a) Lightning impulse | kV | ≤218 |
| (b) Steeping impulse | kV | ≤246 |
| 13 | Material employed in series non-linear resistor | | ZnO etc. |
| 14 | Arrester housing: | | |
| - Material | | Polymer |
| - Minimum creepage distance | mm/kV | 25/31 |
| 15 | - HV terminal | | hot zip screw |
| - earth terminal | | hot zip screw |
| 16 | Diameter of bushing sheds | mm | 195 |
| 17 | Height | mm | 910/1600 |
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.
