Polymer Lightning Arrester
The polymer lightning arrester is a type of surge arrester that uses a polymer housing to protect electrical equipment from damage caused by lightning strikes. Polymer lightning arresters are a popular choice for a variety of applications due to their durability, low maintenance requirements, and excellent performance.
Description
Polymer Lightning Arrester
Benefits
There are many benefits to using polymer lightning arresters, including:
- Durability: They are made of a material that is resistant to moisture, UV radiation, and extreme temperatures. This makes them ideal for use in harsh environments.
- Low maintenance: They are virtually maintenance-free. They do not require regular cleaning or inspection.
- High performance: They offer excellent protection against lightning strikes. They can quickly and effectively dissipate high-voltage surges.
- Environmental friendliness: They are made of recyclable materials. They are also non-toxic and do not contain any hazardous substances.
Common Applications
They are commonly used in a variety of applications, including:
- Power transmission and distribution systems: They are used to protect transformers, substations, and other power system components from damage caused by lightning strikes.
- Industrial and commercial facilities: Polymer lightning arresters are used to protect sensitive electronic equipment from damage caused by lightning strikes. This includes equipment such as computers, servers, and industrial control systems.
- Residential buildings: Polymer lightning arresters are used to protect homes and other residential buildings from damage caused by lightning strikes.
Polymer Lightning Arrester Parameters
| Parameter | Value |
| Rated voltage (Ur) | 33 kV |
| Impulse withstand voltage (Uimp) | 170 kV |
| Long duration withstand voltage (Uil) | 11 kV |
| Discharge current (I1) | 10 kA |
| Residual voltage (Ur) | 4.5 kV |
How to Choose the Right Polymer Lightning Arrester
When choosing a polymer lightning arrester, it is important to consider the following factors:
- Rated voltage: The rated voltage of the arrester must be equal to or greater than the system voltage.
- Impulse withstand voltage: The impulse withstand voltage of the arrester must be high enough to withstand the most severe lightning strikes in the area.
- Long duration withstand voltage: The long duration withstand voltage of the arrester must be high enough to withstand normal system overvoltages.
- Discharge current: The discharge current of the arrester must be high enough to safely discharge lightning strikes.
- Residual voltage: The residual voltage of the arrester should be as low as possible to minimize damage to protected equipment.
