Current sensor
US-2026056268-A1 · Feb 26, 2026 · US
Protective relaying device
US9057744B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9057744-B2 |
| Application number | US-201213687019-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 28, 2012 |
| Priority date | May 28, 2010 |
| Publication date | Jun 16, 2015 |
| Grant date | Jun 16, 2015 |
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Abstract
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According to one embodiment, a protective relaying device includes a phase difference calculating unit configured to calculate a phase difference between a phase obtained by shifting a phase of first current data by 180°, and a phase of second current data, a setting unit configured to calculate a target value of elimination of a sampling synchronization error caused by a difference between a transmission delay time of up-transmission, and a transmission delay time of down-transmission on the basis of the phase difference, and to set the calculated target value, and a sampling synchronization control unit configured to carry out control of sampling synchronization such that a difference between a time TM and a time TF.
First claim
Opening claim text (preview).
What is claimed is: 1. A protective relaying device comprising: a measuring unit configured to measure a time TM necessary for a first protective relaying device to receive data of a specific position on a transmission format of a second protective relaying device from a specific position on a transmission format of the first protective relaying device, and a time TF necessary for the second protective relaying device to receive data of a specific position on the transmission form…
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Frequently asked questions
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- What does patent US9057744B2 cover?
- According to one embodiment, a protective relaying device includes a phase difference calculating unit configured to calculate a phase difference between a phase obtained by shifting a phase of first current data by 180°, and a phase of second current data, a setting unit configured to calculate a target value of elimination of a sampling synchronization error caused by a difference between a t…
- Who is the assignee on this patent?
- Takeuchi Atsushi, Toshiba Kk
- What technology area does this patent fall under?
- Primary CPC classification G01R17/12. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jun 16 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).