Fully insulated Polymer Surge Arrester
Product introduction:
An insulated lightning surge arrester refers to a type of surge
arrester that has insulation integrated into its design. This
insulation provides additional protection and electrical isolation
for the surge arrester and the connected equipment or system.
The insulation in an insulated lightning surge arrester serves
multiple purposes:
1. Electrical Isolation: The insulation helps to create a barrier
between the surge arrester and the surrounding conductive
components or structures. It prevents electrical contact and
minimizes the risk of stray currents or faults.
2. Dielectric Strength: The insulation material used in the surge
arrester possesses high dielectric strength, which allows it to
withstand high voltages without breaking down. This property
ensures the surge arrester's effective performance and protection
capability.
3. Environmental Resistance: The insulation protects the surge
arrester from environmental factors such as moisture, dirt, dust,
chemicals, and UV radiation. This helps maintain the insulation
integrity and overall functionality of the surge arrester.
Insulated lightning surge arresters are commonly used in various
applications, including power distribution systems,
telecommunications networks, industrial installations, and
residential settings. They provide reliable surge protection while
also ensuring electrical safety and insulation coordination within
the system.
The specific design and construction of insulated lightning surge
arresters can vary depending on the application and voltage rating.
It's essential to select surge arresters with appropriate voltage
ratings and ensure proper installation in accordance with industry
standards and guidelines. Regular inspection and maintenance of
insulated surge arresters are recommended to ensure their ongoing
effectiveness in protecting against voltage surges.
Entire insulation polymer-housed MOA, of which protection
performance is the same as polymer-housed MOA. HV insulated
conductor length of this kind of product is 500mm.
Advantage:
1/ Excellent sealing;
2/ Miniaturization;
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 | Nominal voltage of system | | Height
HA/HB (mm) | Shed diameter
ФA/ ФB mm |
| | | | S | Z | R/D |
| 1 | 3~6 | kV | 124/155 | 76/44 | 82/44 | 88/50 |
| 2 | 10 | kV | 185/185 | 76/44 | 82/44 | 88/50 |
| 3 | 20 | kV | 305/300 | 114/48 | 114/48 | 120/- |
| 4 | 35 | kV | 485/485 | 114/48 | 114/48 | 120/- |
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.
