An insulating part known as a bushing is utilised in transformers to join the electrical conductor to the grounded frame. High electrical stress may be withstood by the bushing, which also offers a dependable electrical connection to the transformer.
The bushing is often found close to the high voltage connections on the top or side of the transformer tank. The design, voltage rating, and other features of the transformer determine the precise placement and kind of bushing to employ.
A conductor, an insulator, and an exterior layer of protection make up the bushing. The insulating material creates a barrier between the conductor and the grounded frame of the transformer, while the conductor connects the transformer windings to the high voltage power grid.
The bushing not only offers electrical insulation but also aids in regulating the movement of electric fields close to the transformer, which can lessen corona discharge and other electrical issues. In order to ensure the safe and dependable operation of the transformer, it is crucial to maintain a bushing in good condition.
Where is the bushing on a transformer?
bushing transformer purpose
The primary purpose of a bushing in a transformer is to provide electrical insulation and to connect the transformer windings to the high voltage power grid. The bushing is designed to withstand high electrical stress and to provide a reliable electrical connection to the transformer.
The electrical insulation provided by the bushing helps to prevent electrical breakdown or arcing between the high voltage conductor and the grounded frame of the transformer. Without proper insulation, electrical faults can occur, leading to damage to the transformer and potential safety hazards.
In addition to providing electrical insulation, the bushing also helps to control the flow of electric fields around the transformer, which can help to reduce corona discharge and other electrical problems. The bushing is designed to minimize the amount of stress on the insulation and to provide a smooth transition from the conductor to the transformer tank.
Overall, the bushing is a critical component in a transformer, and its proper design, installation, and maintenance are essential to ensure the safe and reliable operation of the transformer.
