What is Bushing Aluminum Shield Ground? How does a corona shield work? What are the benefits of using aluminum shield in bushing?
Read on to know about the bushing aluminum shield ground guide.
If you are the beginner of this area, this article is helpful for you.
So, keep reading to learn more.
What is Bushing?
In the field of electric power, a bushing is a hollow insulating component that enables an electrical conductor to pass safely through a conductive barrier, such as the casing of a transformer or circuit breaker, without direct electrical contact.
Bushings are used for connecting transformers both indoors and outdoors. They typically operate at voltages ranging from 12 kV to 36 kV, with current capacities between 250 and 3150 amps.
Split bushings, often rated at 200 amps, are composed of two parts: a bushing well that interfaces with the transformer tank and a bushing insert that fits into the well to form a secure connection. A fully insulated rubber elbow connector is employed for cable connections, facilitating load break operations. These bushings are designed for voltage levels of 15 kV, 25 kV, and 35 kV. The 200 A insulated high-voltage bushings, used in pad-mounted transformers, are positioned to allow operation with hot-line tools after installation.
Properties of Bushing
Bushings are compact, lightweight components with excellent load-bearing capabilities, making them one of the most cost-effective types of bearings. Depending on the application, some bushings come with added lubrication, while others are engineered to operate without any additional lubrication, functioning efficiently in dry conditions.
What is Aluminum Shield?
The purpose of a corona shield is to ensure a uniform distribution of the local electric field. Corona shields are commonly utilized in high voltage testing equipment and power systems, such as substations, high voltage bushings, AC/DC voltage systems, and circuit breakers. They are primarily constructed from aluminum alloy and copper.
Why Choose Bushing Aluminum Shield Ground?
The aluminum shield has an excellent quality, can be used for a long time, and is not easy to age.
The corona shield has high temperature resistance, the surface is smooth and free of oil, no burr and pores.
FAQs about Bushing Aluminum Shield Ground
Why aluminum alloy is used for shielding?
Aluminum is easy to mold, making it a popular choice for various EMI shielding applications. It can be formed into a variety of shapes and sizes, and it is also lightweight and durable. The material is also a good reflector of electromagnetic radiation.
Conclusion
The bushing aluminum shield is the commonly used part in bushing industry.
Having some knowledge about aluminum corona shield and what it does best can help you to make decisions that will enable your bushing testing processes to work at maximum.
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