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1. 发明专利

JPS60183934A PROTECTIVE RELAYING SYSTEM 失效
公开(公告)号：JPS60183934A
公开(公告)日：1985-09-19
申请号：JP3806184
申请日：1984-02-28
申请人： CHUBU ELECTRIC POWER , MITSUBISHI ELECTRIC CORP
发明人： SUGIURA TOKUHIRO , SUGIYAMA TSUTOMU , HONMA AKIYOSHI , KAMIKUBO YASUHIRO , MAEDA KOUJI
IPC分类号： H02H3/48

2. 发明专利

JPS60183921A PROTECTIVE RELAY SYSTEM 失效
公开(公告)号：JPS60183921A
公开(公告)日：1985-09-19
申请号：JP3806384
申请日：1984-02-28
申请人： CHUBU ELECTRIC POWER , MITSUBISHI ELECTRIC CORP
发明人： SUGIYAMA TSUTOMU , SUZUKI KUNIO , HATSUTORI TOSHIKI , MAEDA KOUJI , HONMA AKIYOSHI
IPC分类号： H02H3/24 , H02H3/48

3. 发明专利

JPS60180428A PROTECTION RELAY SYSTEM 失效
公开(公告)号：JPS60180428A
公开(公告)日：1985-09-14
申请号：JP3805284
申请日：1984-02-28
申请人： CHUBU ELECTRIC POWER , MITSUBISHI ELECTRIC CORP
发明人： SUGIURA TOKUHIRO , SUZUKI KUNIO , ONO AKIRA , MAEDA KOUJI , HATSUTORI TOSHIKI
IPC分类号： H02H3/48

4. 发明专利

JPS60183931A PROTECTIVE RELAY SYSTEM 失效
公开(公告)号：JPS60183931A
公开(公告)日：1985-09-19
申请号：JP3805884
申请日：1984-02-28
申请人： CHUBU ELECTRIC POWER , MITSUBISHI ELECTRIC CORP
发明人： SUGIURA TOKUHIRO , SUZUKI KUNIO , SAKAI YUKITOSHI , KAMIKUBO YASUHIRO , MAEDA KOUJI
IPC分类号： H02H3/48

5. 发明专利

JPS59204419A Protecting relaying device 失效
公开(公告)号：JPS59204419A
公开(公告)日：1984-11-19
申请号：JP7968883
申请日：1983-05-07
申请人： Chubu Electric Power , Mitsubishi Electric Corp
发明人： SUGIYAMA TSUTOMU , SUZUKI KUNIO , MAEDA KOUJI , NARITA TOSHIHARU , KAMIKUBO YASUHIRO
IPC分类号： H02H3/48

6. 发明专利

JPS58186329A Distance relay 失效
公开(公告)号：JPS58186329A
公开(公告)日：1983-10-31
申请号：JP6901882
申请日：1982-04-22
申请人： Mitsubishi Electric Corp
发明人： MAEDA KOUJI , AIDA TADAHIRO , OSHIDA HIDEJI
IPC分类号： H02H3/40

7. 发明专利

JPS58157323A HYBRID PROCESS TYPE DIFFERENTIAL PROTECTING RELAY 失效
公开(公告)号：JPS58157323A
公开(公告)日：1983-09-19
申请号：JP4355182
申请日：1982-03-15
申请人： MITSUBISHI ELECTRIC CORP
发明人： MAEDA KOUJI , AIDA TADAHIRO
IPC分类号： H02H3/28

8. 发明专利

JPS5714755A METHOD OF REDUCING EFFECT DUE TO QUANTIZATION ERROR OF DIGITAL PROCESSING LOCATOR 失效
公开(公告)号：JPS5714755A
公开(公告)日：1982-01-26
申请号：JP9010680
申请日：1980-06-30
申请人： MITSUBISHI ELECTRIC CORP
发明人： MAEDA KOUJI
IPC分类号： G01R19/04 , G01R31/08 , H02H3/02
摘要： PURPOSE:To reduce the effect due to the quantization error in a low input area, etc., by obtaining a resistance component and inductance component through using three consecutive data near the peak values of voltage and electric current. CONSTITUTION:It is assumed that when an input terminal 10 receives data in corresponding to the n-th sampling No., the output of a storage circuit 1 contains in-1. In the subtraction circuit 2, subtraction of (in-in-1) is calculated, and its output is judged as positive, negative or zero by a comparator circuit 4. In a comparator circuit 5, calculation is performed on the data advanced by one sampling from the output of the comparator circuit 4, by using the output of a multiplication circuit 3 and that of the storage circuit 1, and the results of positive, negative and zero are outputted. Next, when a decision circuit 6 receives output having the identical sign from the comparator circuits 4 and 5, it is possible to determine the presence of the peak point between said two outputs and the point of time for the presence of the peak point. Therefore, said method can reduce the effects due to the quantization error in the low input area, etc.

9. 发明专利

JPS5713922A DIGITAL PROCESSING RELAY 失效
公开(公告)号：JPS5713922A
公开(公告)日：1982-01-25
申请号：JP8479780
申请日：1980-06-20
申请人： MITSUBISHI ELECTRIC CORP
发明人： MAEDA KOUJI
IPC分类号： H02H3/05

10. 发明专利

JPS55109121A PROTECTION RELAY 失效
公开(公告)号：JPS55109121A
公开(公告)日：1980-08-22
申请号：JP1763179
申请日：1979-02-15
申请人： MITSUBISHI ELECTRIC CORP
发明人： MAEDA KOUJI
IPC分类号： H02H3/02

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