公开(公告)号：US3588520A

公开(公告)日：1971-06-28

申请号：US3588520D

申请日：1969-10-29

Applicant: GEN ELECTRIC

Inventor： BARKAN PHILIP ,  KOTOS PETER

IPC: H01H9/52 ,  H01H33/34 ,  H01H33/42 ,  H01H31/00

CPC classification number: H01H9/52 ,  H01H33/34 ,  H01H33/423 ,  H01H2009/526 ,  H01H2033/6613 ,  Y10T307/74

Abstract: RELATES TO A HIGH-VOLTAGE ELECTRIC CIRCUIT BREAKER WITH HIGHSPEED TRIPPING MEANS COMPRISING A CAPACITOR LOCATED IN A REGION OF LINE POTENTIAL. TRIPPING IS EFFECTED BY DISCHARGING THE CAPACITOR. THE CAPACITOR IS MAINTAINED IN A CHARGED CONDITION BY MEANS COMPRISING A HYDRAULIC MOTOR IN THE REGION OF LINE POTENTIAL, A PUMP IN A REGION OF GROUND POTENTIAL, AND A HYDRAULIC CIRCUIT INTERCONNECTING THE PUMP AND MOTOR. THE HYDRAULIC CIRCUIT HAS PORTIONS EXTENDING BETWEEN SAID LINE POTENTIAL REGION AND SAID GROUND POTENTIAL REGION WHICH ARE PRIMARILY OF ELECTRICAL INSULATING MATERIAL.

公开(公告)号：US3646398A

公开(公告)日：1972-02-29

申请号：US3646398D

申请日：1970-07-16

Applicant: GEN ELECTRIC

Inventor： KOTOS PETER

IPC: H02H7/12 ,  H03K17/082 ,  H02H7/14

CPC classification number: H02H7/1216 ,  H03K17/0824

Abstract: A protective circuit is provided for a thyristor switch connected between an AC source and a load. The switch includes a commutation thyristor and a DC charged commutation capacitor. The protective circuit includes a DC sensitive relay which, when energized, actuates a backup circuit breaker connected in series with said switch to isolate the source from the load. The relay is actuated by the discharge of the commutation capacitor if the commutation thyristor has shorted.

公开(公告)号：US3555354A

公开(公告)日：1971-01-12

申请号：US3555354D

申请日：1969-03-11

Applicant: GEN ELECTRIC

Inventor： KOTOS PETER

IPC: H01H33/00 ,  H01H33/59 ,  H02H3/08

CPC classification number: H01H33/593 ,  H01H33/006

Abstract: Discloses a fault current responsive opening control for an AC circuit breaker which is capable of fully separating its contacts within an operating time of less than 4 milliseconds following reception of a tripping signal from the control. The control comprises means for measuring during each full loop of fault current the time period from zero crossing to peak current. Means responsive to the length of this time period delivers a tripping signal to the circuit breaker at a point between peak current and the immediately following current zero if the measured time period exceeds a preselected value at least as great as said operating time.

公开(公告)号：US3893052A

公开(公告)日：1975-07-01

申请号：US50950574

申请日：1974-09-26

Applicant: GEN ELECTRIC

Inventor： KOTOS PETER ,  KOKOLIS HARRY G

IPC: G08B5/32 ,  H01F7/122 ,  H01F7/16 ,  H01H71/10 ,  H01H71/32 ,  H01F7/08

CPC classification number: H01F7/1615 ,  G08B5/32 ,  H01F7/122 ,  H01H71/1054 ,  H01H71/322

Abstract: In the disclosed indicating device a plunger is normally held in a retracted, non-indicating position by a permanent magnet. An electro-magnet, upon energization, develops a flux opposing the holding flux of the permanent magnet to allow the plunger to be displaced by a spring into its indicating position. The magnetic circuit for most of the holding flux from the permanent magnet comprises a wall of magnetic material containing an aperture through which the plunger extends with a loose fit and through which it moves upon displacement by the spring. For preventing undesired displacement of the plunger out of its retracted position as a result of mechanical shocks and vibrations, there is developed on the plunger in the region where it passes through the aperture a radially-acting magnetomotive force that holds the outer periphery of the plunger in contact with a restricted portion of the internal wall of the aperture.

Abstract translation: 在公开的指示装置中，柱塞通常由永磁体保持在缩回的非指示位置。 电磁体在通电时产生与永磁体的保持磁通相反的磁通，以允许柱塞被弹簧移位到其指示位置。 用于来自永磁体的大部分保持磁通的磁路包括磁性材料壁，该磁性材料壁包含孔，柱塞以松动配合的方式延伸穿过该孔，并且当弹簧移位时，磁路移动。 为了防止由于机械冲击和振动导致柱塞从其缩回位置的不希望的位移，在柱塞上穿过该孔的区域中形成径向作用的磁动势，其保持柱塞的外周 与孔的内壁的限制部分接触。

公开(公告)号：US3883838A

公开(公告)日：1975-05-13

申请号：US45670174

申请日：1974-04-01

Applicant: GEN ELECTRIC

Inventor： BOGERT ERNEST H ,  KOTOS PETER

IPC: H01H85/165 ,  H01H85/04

CPC classification number: H01H85/165

Abstract: A high-current current-limiting fuse comprises an aluminum plate containing two spaced-apart notches extending transversely of the central longitudinal axis of the plate from opposite lateral edges of the plate to points near said axis, thereby dividing the plate into two massive tang portions spaced apart along said axis and a restricted neck portion interconnecting the tang portions. The tang portions constitute fuse terminals, and the neck portion constitutes fusible conducting means for carrying current between the tang portions and for melting in response to overcurrents. The neck portion is integral with the tang portions, and the junctions between the neck portions and the tang portions are free of solder. A housing of insulating material surrounds the neck portion and comprises plates of insulating material at opposite faces of the aluminum plate and portions of insulating material extending into the notches. The insulating plates are secured to said tang portions and to each other, thereby effectively preventing motion of the tang portions relative to each other.

Abstract translation: 大电流限流熔断器包括铝板，该铝板包含两个间隔开的槽口，其横向于板的中心纵向轴线从板的相对侧边缘延伸到靠近所述轴线的点，从而将板分成两个块状柄部 沿着所述轴线间隔开，并且限制颈部部分互相连接柄脚部分。 舌部构成熔丝端子，并且颈部部分构成用于承载柄部之间的电流并响应于过电流而熔化的可熔导电装置。 颈部与柄脚部分成一体，并且颈部和脚部之间的接合处没有焊料。 绝缘材料的壳体围绕颈部并且包括在铝板的相对面处的绝缘材料的板和延伸到凹口中的绝缘材料的部分。 绝缘板固定到所述柄部和彼此上，从而有效地防止脚部相对于彼此的运动。

公开(公告)号：US3557382A

公开(公告)日：1971-01-19

申请号：US3557382D

申请日：1968-12-23

Applicant: GEN ELECTRIC

Inventor： KOTOS PETER

IPC: H01H33/59 ,  H01H9/54

CPC classification number: H01H33/596 ,  Y10T307/937

Abstract: Discloses a high-voltage, direct-current circuit breaker having a control circuit at substantially line potential. Operating power for the control circuit is derived directly from the high voltage DC line by utilizing the small ripple component in the direct current in the line to produce a changing flux in a magnetizable core mounted about the line. The core has a low permeability gap therein that is of sufficient size to maintain the core unsaturated at rated current through the DC line.

公开(公告)号：US3546534A

公开(公告)日：1970-12-08

申请号：US3546534D

申请日：1968-01-31

Applicant: GEN ELECTRIC

Inventor： KOTOS PETER

IPC: H02H3/46 ,  H02H7/04

CPC classification number: H02H3/46 ,  H02H7/04