Switch Arrangement With Photoelectric Ignition For High-Voltage
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Solution Overview
Problem
Existing high-voltage switch arrangements face inefficiencies due to the use of mechanical drives, which slow down the switching process and introduce potential isolation issues in series circuits.
Innovation Solution
The solution involves connecting multiple switches in series or parallel configurations, with galvanic isolation of propelling charges and the use of photoelectric devices for ignition, along with vacuum chambers and conical contact designs to enhance dielectric strength and current carrying capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a mechanical drive is used to actuate the moving contact, then the switching device can be operated, but the switching process slows down
Solution Approach 1:
The patent replaces the mechanical drive system with a direct electromagnetic actuation system. The moving contact is actuated by an ignition charge that creates an electromagnetic force, eliminating the need for intermediate mechanical components such as levers, linkages, or motors. This substitution of mechanical systems with electromagnetic fields directly increases switching speed while reducing mechanical complexity.
2Strength
If multiple switches are connected in series, then high dielectric strength is achieved, but potential isolation issues occur due to marginally different ignition times
Solution Approach 1:
The patent replaces galvanic electrical connections with photoelectric isolation for controlling multiple switches in series. Each switch's ignition charge is triggered by light signals rather than direct electrical connections, which eliminates potential isolation issues while maintaining synchronized operation. The photoelectric transducers convert optical signals to electrical impulses that ignite the ignition charges, ensuring reliable series operation without galvanic interference.
Solution Approach 2:
The patent introduces photoelectric transducers as intermediary devices between the control system and the ignition charges in series-connected switches. These transducers receive optical signals and convert them to electrical impulses that trigger the ignition charges, serving as a non-galvanic mediator that maintains synchronization while preventing potential isolation issues.
3Quantity of substance
If multiple independent switches are used in parallel, then high current carrying capacity is achieved, but synchronous operation becomes difficult to control
Solution Approach 1:
The patent employs a common ignition device that serves multiple parallel-connected switches simultaneously. This single control mechanism can trigger all switches in parallel to operate synchronously, providing a universal solution that maintains ease of operation while achieving high current carrying capacity through the parallel configuration.
Solution Approach 2:
The patent uses electromagnetic ignition charges actuated by a common control system to synchronize multiple parallel switches. By replacing complex mechanical synchronization mechanisms with electromagnetic actuation, the system achieves synchronous operation of parallel switches with improved ease of control.
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 faster switching with high effective current and dielectric strength, while minimizing potential increases from asynchronous ignition times.
Implementation Method 1
the propelling charge of the second switch is ignited by means of a photoelectric device
Implementation Method 2
at least the chambers in which the switching path lies are vacuum chambers
Data Source
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Figure 2
AI summary
The invention relates to a switch arrangement for medium and high-voltage switching devices having switches (12), with which at least one of the contacts is a moving contact which can be actuated by means of a propelling charge, in order to ensure that both a high-current arrangement and a high-voltage arrangement can be taken into account, according to the invention it is proposed that, for a plurality of switches, a dedicated propelling charge is provided for each switch, and that the propelling charges are coupled together with regard to the time of the ignition.