Number | Date | Country | Kind |
---|---|---|---|
10-291967 | Oct 1998 | JP |
Number | Name | Date | Kind |
---|---|---|---|
4357666 | Matsushima et al. | Nov 1982 | A |
4405966 | Cavero | Sep 1983 | A |
4433353 | Wilkinson | Feb 1984 | A |
4507700 | Andow et al. | Mar 1985 | A |
4577254 | Yamaura | Mar 1986 | A |
5140492 | Schweitzer, III | Aug 1992 | A |
6046895 | Jurisch et al. | Apr 2000 | A |
Number | Date | Country |
---|---|---|
3-20969 | Mar 1991 | JP |
Entry |
---|
“Protective Relay Techniques, chapter 3”, Tokyo Denki University Publications Office, (1981), pp 252-254. |
Denki Kyodo Kenkyu, “Backup Protective Relay Systems”, vol. 37, No. 1, (Electrical Joint Research), (1981), pp 41. |
“Protective Relay Engineering” (1981), pp 119-127. |
Yamaura MITSURU, Derwent Abstract of Japanese Reference No. 60-039312 (1985). |