Shell-Type Transformer Tank Core Clamping With Screw-Set Plunger
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Solution Overview
Problem
There is a need for a reliable and stable transformer tank for shell type transformers that allows for precise setting of the clamping force on the magnetic core, as existing solutions fail to provide a consistent and adjustable clamping mechanism.
Innovation Solution
A transformer tank with a clamping arrangement comprising a beam and a movable plunger, where the clamping force is settable by controlling the position of the plunger relative to the beam, utilizing a screw device to exert a controlled torque and achieve a desired clamping force on the magnetic core.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a fixed clamping mechanism is used for the magnetic core, then the structure is simple, but the clamping force cannot be precisely adjusted
Solution Approach 1:
The clamping arrangement employs a movable plunger that can be positioned at different locations along the beam, transforming a static fixed clamping mechanism into a dynamic adjustable one. This allows the clamping force to be precisely controlled by adjusting the plunger position while maintaining structural simplicity through the use of a single movable component rather than multiple adjustable mechanisms.
2Force
If the plunger is positioned closer to the magnetic core, then the clamping force increases, but the installation space requirement changes
Solution Approach 1:
The solution transitions from a vertical clamping arrangement to a horizontal one by positioning the plunger to move along the beam in a direction parallel to the magnetic core rather than perpendicular. This dimensional change allows the plunger to be positioned closer to the magnetic core to increase clamping force while maintaining consistent installation space requirements, as the plunger moves along the length of the beam rather than requiring additional vertical or lateral space.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enables a stable and reliable clamping of the magnetic core, allowing for precise adjustment of the clamping force, which enhances the reliability and stability of the transformer tank and the transformer, enabling it to withstand short circuits and maintain performance over its lifetime.
Implementation Method 1
The transformer tank, in particular the clamping arrangement, comprises a screw device. The screw device is in contact with the second axial end of the plunger. The screw device is configured for moving the plunger along its longitudinal axis. By screwing one or more screws of the screwing device the plunger is pushable in the direction towards the magnetic core.
Implementation Method 2
The clamping force can be set dependent on the screws of the screw device, in particular dependent on a torque exerted on the screws.
Data Source
AI summary
A transformer tank for a shell type transformer includes a wall, the wall surrounding a tank interior, a clamping arrangement for exerting a clamping force on a magnetic core of the shell type transformer. The clamping arrangement includes a beam fixed on the wall, and a plunger, the plunger including a first axial end configured to exert the clamping force on the magnetic core. The plunger is movable with respect to the beam along its longitudinal axis and a value of the clamping force is settable depending on the position of the plunger relative to the beam.