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1. 发明专利

JPS58112416A PROTECTIVE RELAY UNIT 失效
公开(公告)号：JPS58112416A
公开(公告)日：1983-07-04
申请号：JP21201981
申请日：1981-12-24
申请人： MITSUBISHI ELECTRIC CORP
发明人： KOTANI GENZABUROU , YAMAOKA JIYUNTAROU
IPC分类号： H02H3/05

2. 发明专利

JPS56136126A PROTECTION RELAY 失效
公开(公告)号：JPS56136126A
公开(公告)日：1981-10-24
申请号：JP3981780
申请日：1980-03-25
申请人： MITSUBISHI ELECTRIC CORP
发明人： KOTANI GENZABUROU
IPC分类号： H02H3/40 , G01R23/12

3. 发明专利

JPS55110962A TROUBLE POINT ORIENTATING APPARATUS 失效
公开(公告)号：JPS55110962A
公开(公告)日：1980-08-27
申请号：JP1925779
申请日：1979-02-20
申请人： MITSUBISHI ELECTRIC CORP
发明人： KOTANI GENZABUROU
IPC分类号： G01R31/08 , H02H3/40
摘要： PURPOSE:To prevent the miss orientation due to the exciting current of the transformer by computing the orientation value with the instantaneous voltage value as the zero and 180 deg. in the current phase and selecting the larger result as the true value. CONSTITUTION:The system voltage and current introduced through respective current transformers are introduced to the input terminals 41 and 42. The pulse signals generated with zero point pulse generating circuits 43-H and 43-L which is fed with the system current when the phase of the current is 0 deg. or 180 deg. are each fed to the voltage derivation circuits 44-H and 44-L with which the system voltage is derived each time the pulse signal is applied. A signal is formed at a time interval proportional to the input level by the gate circuits to which the output of the circuits 44-H and 44-L is provided. The voltage obtained in the circuit 46 through multiplica tion the settled reactance of the system current is fed to the circuit 47. Thus, the number of pulse is generated corresponding to the frequency inversely proportional to the input level. The pulses which will pais while the signals are derived from the gate circuits 45-H and 45-L are derived by circuits 48-H and 48-L. The pulses larger in the number among those derived is derived by the circuit 50 thereby orientating the trouble point.

4. 发明专利

JPS60164264A GROUND FAULT POINT LOCATOR 失效
公开(公告)号：JPS60164264A
公开(公告)日：1985-08-27
申请号：JP2016384
申请日：1984-02-06
申请人： MITSUBISHI ELECTRIC CORP
发明人： SUZUKI MAKOTO , KOTANI GENZABUROU , KASHIWAMORI WATARU
IPC分类号： G01R31/08
摘要： PURPOSE:To make the equipment simple and inexpensive by measuring the distance to a fault point from affected current and voltage generated in the power system when a ground fault occurs in one line. CONSTITUTION:An arithmetic circuit 104 computes Lkm (total length of parallel two lines), Z0A (zero phase impedance of the first line) and ZR0 (impedance obtained by addition of zero phase impedance XTR behind the power receiving side and neutral resistance 3RNR) to obtain LZ0A+ZR0. An arithmetic circuit 105 computes L, Zm (mutual impedance between circuits) and ZR0 to obtain LZm+ZR0. An arithmetic circuit 106 computes L, Z0B (zero impedance of the second line) and ZR0 and outputs LZ0B+ZR0. An addition circuit 111 adds a zero phase voltage V0, at the set point of a fault point locator and outputs of integration circuits 107 and 108. An addition circuit 112 adds V0 and outputs of integration circuits 109 and 110. An arithmetic circuit 113 computes outputs of the addition circuits 111 and 112 and the arithmetic circuits 104 and 105 and a division circuit 115 divides the output of the arithmetic circuit 113 by the output of an arithmetic circuit 114 to output the distance to a ground fault point.

5. 发明专利

JPS60164262A GROUND FAULT POINT LOCATOR 失效
公开(公告)号：JPS60164262A
公开(公告)日：1985-08-27
申请号：JP2016184
申请日：1984-02-06
申请人： MITSUBISHI ELECTRIC CORP
发明人： SUZUKI MAKOTO , KOTANI GENZABUROU , KASHIWAMORI WATARU
IPC分类号： G01R31/08
摘要： PURPOSE:To make the equipment simple and inexpensive by measuring the distance to a fault point from affected current and voltage generated in a power line when a fault occurs. CONSTITUTION:In case of a fault in the first line, a fault detector connects a change-over switch 104 to the upper position. As a result, the output of an integration circuit 106 gives L(Z0+Zm)I02 derived from information of Lkm from a memory unit 105 and zero phase impedance Z0 from the system conditions and information of mutual impedance Zm between circuits and zero phase current I02 of the second line introduced through the change-over switch 104. Then, an integration circuit 107 provides ZROI01, ZR0I02 and 2ZR0I02 derived from information of impedance ZR0 obtained by addition of zero phase impedance XTR behind the power receiving side and neutral resistance 3RNR on the power receiving side and the phase zero current I01 in the first line and that I02 in the second line. Addition circuits 108 and 109 input outputs of components derived from the integration circuits 106 and 107 and components derived from an input terminal 103 into an arithmetic circuit 110 and output the distance (x) to a fault point to an output terminal 111.

6. 发明专利

JPS58163221A PROTECTING RELAY UNIT 失效
公开(公告)号：JPS58163221A
公开(公告)日：1983-09-28
申请号：JP4508082
申请日：1982-03-19
申请人： MITSUBISHI ELECTRIC CORP
发明人： KOTANI GENZABUROU , YAMAOKA JIYUNTAROU
IPC分类号： H02H3/05

7. 发明专利

JPS5752321A Phase discriminator 失效
标题翻译：相位辨识器
公开(公告)号：JPS5752321A
公开(公告)日：1982-03-27
申请号：JP12581080
申请日：1980-09-10
申请人： Mitsubishi Electric Corp
发明人： SUZUKI SUNAO , KOTANI GENZABUROU
IPC分类号： G01R25/00 , H02H3/26
CPC分类号： G01R25/00 , H02H3/265

8. 发明专利

JPS60164266A GROUND FAULT POINT LOCATOR 失效
公开(公告)号：JPS60164266A
公开(公告)日：1985-08-27
申请号：JP2016584
申请日：1984-02-06
申请人： MITSUBISHI ELECTRIC CORP
发明人： SUZUKI MAKOTO , KOTANI GENZABUROU , KASHIWAMORI WATARU
IPC分类号： G01R31/08
摘要： PURPOSE:To make the equipment simple and inexpensive by measuring the distance to a fault point from current information. CONSTITUTION:A change-over switch 104 is connected to the upper position in case of a fault in the first line and a zero phase current (I02) on the zero phase current (I01)-sound circuit side in the affected circuit is outputted from a subtraction circuit 107. With an integration circuit 108, V(I01-I02) is derived from a component V (positive phase voltage at the set point of a ground fault point locator in the sound operation) from an input terminal 101 and the output component of the subtraction circuit 107. The positive phase current flowing to a parallel 2-line circuit is inputted into a memory circuit 109 through a change- over switch 106 from an input terminal 105, where positive currents IL and IP in the sound operation and at the fault respectively are memorized. An arithmetic circuit 110 outputs (IL-IE)E and 2(IL-IE)E from the output component of the memory circuit 109 and a power source voltage E. An integration circuit 111 integrates components including that of the subtraction circuit 107 and IL of the memory circuit 109. An arithmetic circuit 114 divides the output of an addition circuit 112 by the output of an addition circuit 113 to determine the distance to the fault point.

9. 发明专利

JPS60164263A GROUND FAULT POINT LOCATOR 失效
公开(公告)号：JPS60164263A
公开(公告)日：1985-08-27
申请号：JP2016284
申请日：1984-02-06
申请人： MITSUBISHI ELECTRIC CORP
发明人： SUZUKI MAKOTO , KOTANI GENZABUROU , KASHIWAMORI WATARU
IPC分类号： G01R31/08
摘要： PURPOSE:To make the equipment simple and inexpensive by measuring the distance to a fault point from affected current generated in the power system in case of a ground fault in one line. CONSTITUTION:A change-over switch 103 is connected to the lower position in case of a fault in one line. A multiplier 104 outputs a zero phase current I02 on the side of the sound circuit as introduced through the changeover switch 103 as 2-fold component. Then, an addition circuit 105 adds components applied from input terminals 101 and 102 and outputs I01 (zero phase current of the affected circuit)+I02. Then, an arithmetic circuit 107 divides the output component of the multiplier 104 by the output component of the addition circuit 105, subsequently, integrates the total length Lkm (total length of the parallel 2-line system) from a memory circuit 106 to compute the distance (x) to the fault point and outputs it to an output terminal 108.

10. 发明专利

JPS57156624A DISTANCE RELAY 失效
公开(公告)号：JPS57156624A
公开(公告)日：1982-09-28
申请号：JP4142381
申请日：1981-03-19
申请人： MITSUBISHI ELECTRIC CORP
发明人： KOTANI GENZABUROU
IPC分类号： H02H3/40

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