Specification
| Content / Item |
Value |
| Rated voltage |
17 kV |
| Continuous operation voltage |
13.6 kV |
| The reference voltage at D.C. |
≤25.0 mA kVd.c |
| Nominal discharge current |
5 kA |
| Lightning impulse |
≥50 kV |
| Steeping impulse |
≥57.5 kV |
| Switching impulse |
≥42.5 kV |
The table above is just one of our product parameters. If you want more information, please get in touch with info@wishpower.net or download the file below.
What is Elbow Arrester?
Elbow Arrester is a form of surge protector that is applied to underground electrical distribution systems that are under medium voltage. The shape of an elongated pipe with a 90º angle can be mated with T-shaped coupling elements in underground cable arrays. The main objective is to safeguard electrical appliances like transformers, cables, etc. from voltages that are higher than can be handled by the system as a result of lightning, switching operations, and other transitory electrical occurrences. Excess voltage is thus taken away from electrical appliances in an attempt to protect them; it is then grounded safely hence contributing to system reliability. It is fully compact and hence ideal for the restricted harsh environments usually found in underground installations for they expose many equipment to moisture, dirt, and other environmental contaminants. The system also aids in easy installation of underground electrical networks and ensures easy maintenance making it a key in achieving the durability of its networks.
Features
- Compact Design:
It is available with a 90-degree bend, which makes it fit well in systems that contain underground cables especially where ‘T’ connectors are used.
- Surge Protection:
Transformer elbow arrester helps to safely discharge added voltage resulting from lightning or other operations that may affect substations or transformers and keep such effects from physically damaging other devices or components.
- Sealed Construction:
The arrester is also fully sealed and thus able to withstand harsh underground environments including moisture, dirt, and other such elements that might affect its proper functioning.
- Durability:
As it is developed for use in underground conditions, they are made very sturdy and can endure mechanical as well as environmental wear and tear.
- Easy Installation:
It is easy to install and maintain and thus can be easily applied in those complex and difficult-to-access sections of underground systems.
Benefits
- Enhanced Equipment Longevity:
From protecting the electrical equipment from overvoltage conditions, the elbow surge arrester ensures that transformers, and cables, among others do not need frequent replacement hence saving a lot of money that could have been used to repair them.
- Improved System Reliability:
Its surge protection capabilities ensure consistent performance of the electrical distribution system, minimizing the risk of system outages and improving overall reliability.
- Cost Efficiency:
Reducing and mitigating the level of damage done to the pipelines and decreasing the frequency of necessary maintenance, contributes to lower long-term costs of operation and less interruption, as seen with the utility providers.
- Increased Safety:
The arrester assists in protecting from electrical fires, and other risks that are connected with the overvoltage state of the electrical network, improving the safety of electrical distribution and personnel, and physical assets.
- Reduced Downtime:
Installation is fast and with minimal effort, the frequency of maintenance and repair works is also minimal; this affords greater service reliability to the electrical network.
Application
- Underground Cable Networks:
It is widely connected to underground power distribution networks; this ensures the safety of cables and equipment from overvoltage transients. Their design enables their direct connection to underground cables and they play an important role in protecting cables against transient voltage excursions.
- Urban Electrical Distribution:
In any given city with a large power distribution network involving underground cables, it is applied to protect the transformers and other accessories in cases where they may be at risk of being struck by lightning or during switching operations. They are compact and that makes them suitable to be used in cramped electrical vaults common in urban settings.
- Industrial Facilities:
It is used most extensively in industrial areas that use underground cable systems. They shield delicate cable workloads that include sensitive electrical equipment against voltage spikes that may compromise their running or can lead to equipment blow up.
- Renewable Energy Sites:
In solar and wind farms where electricity is conducted through cables buried underground they help to safeguard the electrical distribution network in case of surges therefore guaranteeing its performance and safeguarding equipment.
- Transportation Infrastructure:
Surge arresters are applied in underground cable systems for high-speed rails and metro to protect electrical supply from overvoltage hence enhancing the reliability and safety of the transport system.
Certificate
Factory
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