Address
Nanzhai village, Liushi Town, yueqingCity, zhejiang Province, china
Tel
+86-13375775325
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Technology Parameter:
Product Name: Silicone Surge Arrester, is also named Polymer Surge Arrester, Oxide Zinc Surge Arrester, Composite Lightning Arrester.
Product Type: 9KV 10KA-285mm
Technical Parameters：
Rated voltage: 9kv
Norminal discharge current: 10kA
Maximum continuous operating voltage (MCOV): 7.05kv
1/4µs steep current residual voltage: 33.7 kv
8/20µs lightning current residual voltage : 27kv
30/60µs switching current residual voltage: 23.8kv
2000µs rectangular wave current impulse: 250A
4/10µs high current withstand discharge capacity : 100KA
Discharge classic: 1
Creepage distance: 285mm
Specific Description:
Line-Type 9kv 10kA Zinc Oxide (ZnO) Surge Arrester
Application:Designed specifically for overvoltage protection on medium-voltage overhead distribution lines (typically up to 35kV systems).
Rated Voltage: 9kV. This indicates the maximum continuous operating voltage (MCOV or Uc) the arrester is designed to withstand under normal system conditions. It's suitable for protecting systems with nominal voltages like 6.6kV or 7.2kV.
Discharge Capacity: 10kA. This is the nominal discharge current (In), representing the peak value of the lightning impulse current (8/20 µs waveform) that the arrester is rated to handle at least 20 times. A 10kA rating signifies robust protection capability for typical distribution line lightning threats.
Type:Protection Grade / Transmission Line Type. This arrester is engineered for direct exposure to harsh outdoor environments on power lines. Its primary function is to limit lightning-induced and switching-induced overvoltages, protecting line equipment like insulators, transformers, and switches.
Housing Design: Features a 4-shed polymer housing. The sheds (umbrella-like protrusions) are crucial for:
Creepage Distance:Providing the specified 285mm of creepage distance along the insulating housing surface. This is a critical parameter for preventing flashover under polluted or wet conditions.
Pollution Performance:The shed profile significantly enhances performance in polluted environments (salt, dust, industrial) by increasing the leakage path and promoting water runoff.
Dry Arc Distance: While not specified, the housing design also provides the necessary dry arc distance for basic insulation coordination.
Housing Material: Utilizes high-quality grey (gray) polymer (silicon rubber or EPDM). Polymer housings offer excellent hydrophobicity (water repellency), UV resistance, tracking and erosion resistance, and are lightweight compared to porcelain.
Core Technology: Employs a Zinc Oxide (ZnO) resistor valve block as the active element. This block exhibits highly non-linear voltage-current characteristics:
Acts as an excellent insulator under normal system voltage.
Becomes highly conductive within nanoseconds when subjected to dangerous overvoltages (like lightning strikes), clamping the voltage to a safe level.
Returns to insulating state automatically once the overvoltage subsides.
Key Advantages:
Effective Overvoltage Protection: Clamps lightning and switching surges to safe levels, preventing insulation failures and equipment damage.
Sealed Design:The polymer housing provides a robust hermetic seal around the ZnO block, preventing moisture ingress and ensuring long-term stability.
Lightweight & Vandal-Resistant: Polymer construction makes it significantly lighter than porcelain equivalents and less prone to damage.
Maintenance-Free: ZnO arresters generally require no maintenance during their service life.
High Pollution Performance: The 4-shed design and 285mm creepage distance ensure reliable operation in polluted areas (typically corresponding to IEC/ANSI Pollution Severity Level III/Heavy).
Durability:Designed to withstand environmental stresses like UV radiation, temperature extremes, rain, and wind.
Typical Mounting: Installed directly on overhead line structures (poles, towers), often in parallel with line insulators or near critical equipment like transformers or cable terminations. Suitable for both horizontal (crossarm) and vertical (pole-top) mounting configurations.
Company Display:
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Product Size:
Technology Parameter:
Product Name: Silicone Surge Arrester, is also named Polymer Surge Arrester, Oxide Zinc Surge Arrester, Composite Lightning Arrester.
Product Type: 9KV 10KA-285mm
Technical Parameters：
Rated voltage: 9kv
Norminal discharge current: 10kA
Maximum continuous operating voltage (MCOV): 7.05kv
1/4µs steep current residual voltage: 33.7 kv
8/20µs lightning current residual voltage : 27kv
30/60µs switching current residual voltage: 23.8kv
2000µs rectangular wave current impulse: 250A
4/10µs high current withstand discharge capacity : 100KA
Discharge classic: 1
Creepage distance: 285mm
Specific Description:
Line-Type 9kv 10kA Zinc Oxide (ZnO) Surge Arrester
Application:Designed specifically for overvoltage protection on medium-voltage overhead distribution lines (typically up to 35kV systems).
Rated Voltage: 9kV. This indicates the maximum continuous operating voltage (MCOV or Uc) the arrester is designed to withstand under normal system conditions. It's suitable for protecting systems with nominal voltages like 6.6kV or 7.2kV.
Discharge Capacity: 10kA. This is the nominal discharge current (In), representing the peak value of the lightning impulse current (8/20 µs waveform) that the arrester is rated to handle at least 20 times. A 10kA rating signifies robust protection capability for typical distribution line lightning threats.
Type:Protection Grade / Transmission Line Type. This arrester is engineered for direct exposure to harsh outdoor environments on power lines. Its primary function is to limit lightning-induced and switching-induced overvoltages, protecting line equipment like insulators, transformers, and switches.
Housing Design: Features a 4-shed polymer housing. The sheds (umbrella-like protrusions) are crucial for:
Creepage Distance:Providing the specified 285mm of creepage distance along the insulating housing surface. This is a critical parameter for preventing flashover under polluted or wet conditions.
Pollution Performance:The shed profile significantly enhances performance in polluted environments (salt, dust, industrial) by increasing the leakage path and promoting water runoff.
Dry Arc Distance: While not specified, the housing design also provides the necessary dry arc distance for basic insulation coordination.
Housing Material: Utilizes high-quality grey (gray) polymer (silicon rubber or EPDM). Polymer housings offer excellent hydrophobicity (water repellency), UV resistance, tracking and erosion resistance, and are lightweight compared to porcelain.
Core Technology: Employs a Zinc Oxide (ZnO) resistor valve block as the active element. This block exhibits highly non-linear voltage-current characteristics:
Acts as an excellent insulator under normal system voltage.
Becomes highly conductive within nanoseconds when subjected to dangerous overvoltages (like lightning strikes), clamping the voltage to a safe level.
Returns to insulating state automatically once the overvoltage subsides.
Key Advantages:
Effective Overvoltage Protection: Clamps lightning and switching surges to safe levels, preventing insulation failures and equipment damage.
Sealed Design:The polymer housing provides a robust hermetic seal around the ZnO block, preventing moisture ingress and ensuring long-term stability.
Lightweight & Vandal-Resistant: Polymer construction makes it significantly lighter than porcelain equivalents and less prone to damage.
Maintenance-Free: ZnO arresters generally require no maintenance during their service life.
High Pollution Performance: The 4-shed design and 285mm creepage distance ensure reliable operation in polluted areas (typically corresponding to IEC/ANSI Pollution Severity Level III/Heavy).
Durability:Designed to withstand environmental stresses like UV radiation, temperature extremes, rain, and wind.
Typical Mounting: Installed directly on overhead line structures (poles, towers), often in parallel with line insulators or near critical equipment like transformers or cable terminations. Suitable for both horizontal (crossarm) and vertical (pole-top) mounting configurations.
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