公开(公告)号：US3651377A

公开(公告)日：1972-03-21

申请号：US3651377D

申请日：1970-08-10

Applicant: COMPTEURS COMP D

Inventor： SOUILLARD MICHEL HENRY PIERRE

IPC: H02H3/38 ,  H02H3/26

CPC classification number: H02H3/385

Abstract: A triphase line current-directional relay includes a reference impedance fed by symmetrical components of the currents, a reference voltage and a phase computer connected both to the reference impedance and to the reference voltage.

Abstract translation: 三相线路电流方向继电器包括由电流的对称分量馈送的参考阻抗，参考电压和连接到参考阻抗和参考电压的相位计算机。

公开(公告)号：US3593124A

公开(公告)日：1971-07-13

申请号：US3593124D

申请日：1968-06-03

Applicant: COMPTEURS COMP D

Inventor： CAHEN GILBERT MOISE ,  GUYARD HENRI GEORGES ,  SOUILLARD MICHEL HENRY PIERRE

IPC: G01R31/08 ,  H02H3/08 ,  H02H3/40

CPC classification number: H02H3/40 ,  G01R31/08 ,  H02H3/081

Abstract: A method for detection of faults in a polyphase alternating current transmission line system includes the steps of measuring the voltage, current and derivative of the latter for each phase, formulating the equations for the relationship between the measured values of different phases in accordance with Ohm''s law, transforming these equations into forms having straight line characteristics by application of numerical coefficients, and repeating the foregoing steps at regular intervals to obtain successive straight lines which intersect in a single point and the coordinates of which characterize the operation of the system thus to show line operation in either a normal manner or the existence of a phase-to-phase or phase-to-earth fault. The related apparatus for carrying out the method includes various instruments for measuring the voltage, current and derivative of the current at regular intervals, instruments for recording the data and a computer for processing the data thus obtained.

公开(公告)号：US3626281A

公开(公告)日：1971-12-07

申请号：US3626281D

申请日：1969-07-03

Applicant: COMPTEURS COMP D

Inventor： SOUILLARD MICHEL HENRY PIERRE

IPC: G01R31/02 ,  G01R25/00 ,  G01R29/16 ,  H02H3/26 ,  H02H3/34

CPC classification number: G01R29/16 ,  H02H3/265 ,  H02H3/343

Abstract: A method for selecting a conductor or conductors of a threephase power transport line and device for operating the same which when an earth fault has been determined detects for which phase the negative sequence or inverse component makes with the zero sequence or homopolar component an angle less than 60* then for which of the detected phase the negative sequence or inverse and the positive sequence or direct components make an angle exceeding 90*, and which when a defect not earthed has been determined detects for which of the phases the angle between the inverse and direct components make an angle less than 60*.

公开(公告)号：US3513352A

公开(公告)日：1970-05-19

申请号：US3513352D

申请日：1968-04-22

Applicant: COMPTEURS COMP D

Inventor： SOUILLARD MICHEL HENRY PIERRE

IPC: H02H1/00 ,  H02H3/34 ,  H02H3/38 ,  H02H3/26 ,  H02H1/04

CPC classification number: H02H3/343 ,  H02H1/0053 ,  H02H3/387

公开(公告)号：US3612989A

公开(公告)日：1971-10-12

申请号：US3612989D

申请日：1969-02-20

Applicant: COMPTEURS COMP D

Inventor： SOUILLARD MICHEL HENRY PIERRE ,  FONTENY MICHEL LOUIS

IPC: G01R27/16 ,  G01R31/08 ,  H02H3/40

CPC classification number: G01R31/085 ,  G01R27/16 ,  G01R31/08 ,  H02H3/40 ,  H02H3/402

Abstract: A process for measuring the distance of a fault between phases and the earth of an electric power transport line where one effects, at the moment when the faulty current takes a zero value, the ratio between the voltage of the faulty loop at the measuring point and a reference voltage representing the voltage drop equivalent to a faulty current in a given length of the loop in question. A device for measuring the distance of a fault between phases or the earth comprising means for elaborating a reference voltage representing a voltage drop equivalent to a faulty current in a given length of the faulty loop at the measuring point means for detecting the moment when the faulty current passes by a zero value, means for remembering the value at this moment of the voltage of said loop and the reference voltage, and means for effecting the ratio of these two voltages.

公开(公告)号：US3488559A

公开(公告)日：1970-01-06

申请号：US3488559D

申请日：1967-08-28

Applicant: COMPTEURS COMP D

Inventor： SOUILLARD MICHEL HENRY PIERRE

IPC: H02H3/38 ,  H02H1/02 ,  H02H1/04 ,  H02H3/00

CPC classification number: H02H3/382