Compensation Choke Housing With Separable Connections for HV Testing
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Solution Overview
Problem
Existing compensation choke coils and grounding chokes in power supply networks are difficult to test due to their common housing design, which limits space efficiency but complicates testing procedures.
Innovation Solution
The compensation choke coils and grounding chokes are housed in a common housing with separable electrical connections, allowing for testing through plug-in high-voltage feedthroughs that maintain a hermetically sealed environment, and after testing, they are connected in series for operation, minimizing oil displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If compensation choke coils and grounding chokes are housed in a common housing, then space efficiency is improved, but testing difficulty increases
Solution Approach 1:
The patent applies segmentation by providing separable electrical connections between the compensation choke coils and grounding chokes within the common housing. The derivatives of the ground-side connection of the compensation choke coils and the derivative of the voltage-side connection of the ground choke are designed to be separable, allowing the components to be electrically disconnected for independent testing while remaining physically housed together, thus resolving the contradiction between space efficiency and testing difficulty
Solution Approach 2:
The patent uses test implementation connections as intermediaries to enable testing. During testing, the separable derivatives are connected to a test implementation, which acts as a mediator to provide the necessary test connections without requiring permanent external wiring, thus facilitating testing while maintaining the compact common housing design
2Ease of operation
If separable connections are provided for testing, then testing ease is improved, but connection complexity increases
Solution Approach 1:
The separable electrical connections are designed with multi-functionality to reduce complexity. The same separable connection structure serves both normal operation (when connected) and testing (when separable), eliminating the need for separate test-specific connection mechanisms. This universal design approach simplifies the overall connection system while enabling easy testing
3Ease of operation
If components are separated for testing, then testing accessibility is improved, but sealing integrity may worsen
Solution Approach 1:
The patent applies the extraction principle by removing only the electrical connections (derivatives) for separation during testing, while leaving the common housing and its sealing structure intact. The separable connections are designed to maintain the hermetic seal of the housing, extracting only the necessary electrical pathways for testing without compromising the physical sealing integrity of the containment structure
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 design enhances space efficiency while enabling effective testing and operation, ensuring the stability and efficiency of power supply networks by allowing for easy separation and reconnection of components without compromising the sealed environment.
Implementation Method 1
Compensation choke coils are used for various tasks: They compensate for capacitive reactive power of the transmission lines, which occurs particularly in lightly loaded or idle networks, reduce network frequency overvoltages in the event of sudden load drops or an idle network
Implementation Method 2
Compensation throttle coils with oil filling are generally designed with so-called ONAN cooling, i.e. with natural convection of the ambient air
Implementation Method 3
or for high performance also with ONAF cooling, in which the air flow is forced by means of a fan
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
The invention relates to a compensation device for high-voltage systems, comprising compensation choke coils and at least one earthing choke, wherein the compensation choke coils (3) and the earthing choke (4) are housed in a common housing (5) and wherein the electrical connection between compensation choke coils (3) and earthing choke (4) is separable.