Directional current based shutting method of high-speed switching device of industrial enterprise power supply,
A fast switching and current technology, applied in circuit devices, emergency power supply arrangements, electrical components, etc., can solve problems such as interference in industrial enterprises, inability to lead out protection action contacts, and no protection, and achieve the effect of avoiding the expansion of accidents.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0020] The invention integrates the directional current criterion, the negative sequence voltage criterion and the low voltage criterion into the fast switching device of the power supply to form a blocking logic; in normal operation, the current amplitude at the inlet switch is less than the rated value, and the direction flows to the working bus, and works The bus voltage amplitude is between 95% and 105%, and the phase sequence is positive. When an asymmetrical fault or a symmetrical fault occurs to the working bus and the equipment it carries, the current amplitude increases and the direction flows to the working bus, and a large negative sequence voltage or low voltage appears on the bus.
[0021] The increase in current amplitude and the direction of the current flow to the working bus are the main criteria for external power failure detection.
[0022] Take the negative sequence voltage and low voltage criterion of the busbar as a means to prevent misjudgment.
[0023] Under ...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap