G01R 31/3336
Synthetic testing, i.e. with separate current and voltage generators simulating distance fault
Official title: {Synthetic testing, i.e. with separate current and voltage generators simulating distance fault conditions}
G01R31/3336 (Synthetic testing, i.e. with separate current and voltage generators simulating distance fault) appears on 22 US grants and 20 published applications in this corpus.
Search patents in G01R- Granted patents
- 22
- Published applications
- 20
- Assignees
- 24
- Inventors
- 69
- Latest grant
- 28 Nov 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 2 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 2 | 2 |
| 2017 | 1 | 2 |
| 2018 | 1 | 1 |
| 2019 | 2 | 1 |
| 2020 | 1 | 2 |
| 2021 | 2 | 2 |
| 2022 | 0 | 1 |
| 2023 | 2 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for testing capacitive current switching of a circuit breaker28 Nov 2023US 11,828,803 B2Schneider Electric Industries SAS
- Test apparatus and method for synthetically testing at least one switch device for a high-voltage battery of a vehicle22 Aug 2023US 11,733,299 B2Bayerische Motoren Werke Aktiengesellschaft
- Protective relay test equipment operation device and method24 Aug 2021US 11,101,635 B2Korea Electric Power Corporation
- Thyristor valve test system based on cooperation of logical functions of software18 May 2021US 11,009,542 B2Nr Electric Co., Ltd
- DC high potential insulation breakdown test system and method28 Apr 2020US 10,634,711 B2Hubbell Incorporated
- System and method for detecting failures of solid-state switches in a main circuit28 May 2026US 2026/0147043 A1Schneider Electric Industries SAS
- Assistance apparatus for localizing errors in a monitored technical system2 Jun 2022US 2022/0170976 A1Siemens Aktiengesellschaft
- Method for testing capacitive current switching of a circuit breaker16 Sep 2021US 2021/0286006 A1Schneider Electric Industries SAS
- Test Apparatus and Method for Synthetically Testing at Least One Switch Device for a High-Voltage Battery of a Vehicle18 Feb 2021US 2021/0048477 A1Bayerische Motoren Werke Aktiengesellschaft
- Protective relay test equipment operation device and method16 Jan 2020US 2020/0021100 A1Korea Electric Power Corporation
Most cited
By later US patents
- Method and apparatus for testing an arcing fault circuit interrupter57US 6,218,844 B1Square D Company · 2001
- Electric arc synthesis for arc detector testing and method for arc testing7US 6,781,381 B2Hendry Mechanical Works · 2004
- Test circuit for high voltage apparatus5US 4,326,167 ABBC Brown, Boveri & Company, Limited · 1982
- Fault current test equipment of direct current thyristor valve3US 8,339,153 B2China Electric Power Research Institute · 2012
- Protective relay test equipment operation device and method2US 11,101,635 B2Korea Electric Power Corporation · 2021