ZERO-PASSAGE PROTECTOR AND OPERATIONAL METHOD

DE602019085520T2Active Publication Date: 2026-06-03GE AVIATION SYST LTD
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
GE AVIATION SYST LTD
Filing Date
2019-04-12
Publication Date
2026-06-03

AI Technical Summary

Technical Problem

Traditional AC contactors switch at any point during the AC cycle, leading to voltage or current spikes, contact wear, arcing, deposition, and noise, without considering the current or voltage direction.

Method used

A zero-crossing contactor assembly that operates by determining a total time delay based on sensor inputs to coincide switch operations with zero-crossing points in the AC waveform, reducing wear and noise by ensuring operations occur at zero current.

Benefits of technology

Reduces contact wear, deposition, and electromagnetic noise, while minimizing stress on electrical loads and eliminating voltage spikes, resulting in cleaner power consumption.

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