Shorting Block for Current Transformers Using Activation Contacts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing shorting blocks for current transformers are large and expensive due to their complex design and number of components, which complicates installation and maintenance procedures.
Innovation Solution
A simplified shorting block design that eliminates bridging elements by using activation contacts to transition between operating and shorting positions, reducing size and cost through a reduced component count, with shorting contacts configured to directly contact each other in the shorting position and form a gap in the operating position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing shorting block design with bridging elements is used, then reliable shorting function is achieved, but device size and manufacturing cost increase
Solution Approach 1:
The patent removes the bridging elements from the shorting block design, extracting only the essential shorting contacts and activation mechanism. This elimination of unnecessary components reduces device complexity and manufacturing cost while preserving the core shorting function through direct contact between shorting contacts.
Solution Approach 2:
The patent combines the shorting contact and activation contact functions into a single integrated structure where the activation contact serves dual purposes: activating the shorting mechanism and maintaining the shorting circuit. This merging reduces the total component count while ensuring reliable operation.
2Device complexity
If simplified shorting block design is used, then manufacturing cost and device size are reduced, but maintaining closed loop circuit during transitions becomes more challenging
Solution Approach 1:
The patent designs the shorting contacts to be in direct contact in the default position, establishing the closed loop circuit before activation contacts are inserted. This preliminary establishment of the shorting circuit ensures continuity during the transition process, eliminating the risk of open circuits that could occur with sequential breaking of connections.
Solution Approach 2:
The shorting contacts are designed to automatically maintain contact and preserve the closed loop circuit during the activation process. The mechanical design ensures that the shorting function is self-maintaining throughout the transition, without requiring additional control mechanisms or monitoring systems.
Data Source
AI summary
A shorting block includes a first shorting contact having a first contact portion, a second shorting contact having a second contact portion, the first contact portion and the second contact portion may electrically couple the first shorting contact and the second shorting contact in a shorting position of the shorting block, a first activation, and a second activation contact, the first activation contact and the second activation contact may be inserted into the first shorting contact and the second shorting contact, respectively, such that the first activation contact and the second activation contact direct the first contact portion and the second contact portion away from one another to form a gap between the first contact portion and the second contact portion in an operating position of the shorting block.