1 |
操作风力涡轮机发电厂的方法 |
CN201380073041.7 |
2013-02-15 |
CN104995812A |
2015-10-21 |
M·古普塔; D·K·古鲁; A·K·古普塔 |
本发明提供了操作风力涡轮机发电厂的方法。这种风力涡轮机发电厂包括至少一个传输支路,其包括多个风力涡轮发电机并且通过包括遮断容量的至少一个断路器而在公共耦合点处耦合至电网。所述方法包括:针对低电压故障事件来监测所述风力涡轮机发电厂;以及如果检测到低电压故障事件,则:计算电网短路强度;如果所述电网短路强度要求超过所述断路器的遮断容量的初始故障电流贡献通过所述断路器,那么确定短路电流限制;基于所述短路电流限制来确定最大故障电流贡献;以及操作所述风力涡轮发电机,以向所述电网提供所述最大故障电流贡献。 |
2 |
故障电流限制器装置 |
CN201380061454.3 |
2013-10-21 |
CN104823257A |
2015-08-05 |
D·根奇 |
用于低、中至高电压电网的故障电流限制器装置,其包括设置成对齐真空断续器(断路器单元)(2)的故障电流限制器单元(1),真空断续器有连接至下部电终端(4)的固定电接触件(3)和连接至上部电终端(6)的可移动电接触件(5),以便在故障电流检测器件检测到故障因而故障电流限制器单元(1)已限制电流后中断电流,其中故障电流限制器单元(1)包括可移动的电滑动接触部件(8),其电气地设置在真空断续器(断路器单元)(2)的上部电终端(6)和真空断续器(断路器单元)(2)的可移动电接触件(5)之间,并且能够在邻近上部电终端(6)的短路位置(A)和远离上部电终端(6)的远程位置(B)之间移动以向电流提供最大电阻。 |
3 |
带串联隔离开关的自动开关的操作机构 |
CN00809349.0 |
2000-05-26 |
CN1357152A |
2002-07-03 |
K·J·约翰森 |
一种用于自动开关的操作机构,提供了一种自动开关的断路器元件(3)和与其串联的隔离开关(2)之间机械联锁的改进形式。一个轴(82)在断路器的动触头和双臂曲柄(50)的轮廓之间传递线性运动,双臂曲柄和一个连杆(70)相连接,用来手动旋转双臂曲柄,还和一个连杆(60)相连接,使隔离开关的动触头(20)在断开和闭合位置之间移动。双臂曲柄的轮廓和连杆的几何形状是这样的:当双臂曲柄位于起始位置时,断路器和隔离开关的动触头都位于闭合位置,当双臂曲柄从起始位置顺时针方向旋转一个角度X,断路器的动触头移动到断开位置,而隔离开关的动触头(20)仍然保持在闭合位置。当双臂曲柄(50)在顺时针方向进一步旋转经过一个预定的角度Z而达到双臂曲柄预定的运动极限时,隔离开关的动触头(20)移向断开位置,而断路器的动触头保持在断开位置,这是通过双臂曲柄型面(59)一个具有固定半径R2的扇区来实现的。当双臂曲柄(50)旋转回到起始位置时,在断路器的动触头移动回到其闭合位置之前,隔离开关的动触头(20)回到闭合位置。 |
4 |
操作风力涡轮机发电厂的方法 |
CN201380073041.7 |
2013-02-15 |
CN104995812B |
2017-09-19 |
M·古普塔; D·K·古鲁; A·K·古普塔 |
本发明提供了操作风力涡轮机发电厂的方法。这种风力涡轮机发电厂包括至少一个传输支路,其包括多个风力涡轮发电机并且通过包括遮断容量的至少一个断路器而在公共耦合点处耦合至电网。所述方法包括:针对低电压故障事件来监测所述风力涡轮机发电厂;以及如果检测到低电压故障事件,则:计算电网短路强度;如果所述电网短路强度要求超过所述断路器的遮断容量的初始故障电流贡献通过所述断路器,那么确定短路电流限制;基于所述短路电流限制来确定最大故障电流贡献;以及操作所述风力涡轮发电机,以向所述电网提供所述最大故障电流贡献。 |
5 |
故障电流限制器装置 |
CN201380061454.3 |
2013-10-21 |
CN104823257B |
2017-09-12 |
D·根奇 |
用于低、中至高电压电网的故障电流限制器装置,其包括设置成对齐真空断续器(断路器单元)(2)的故障电流限制器单元(1),真空断续器有连接至下部电终端(4)的固定电接触件(3)和连接至上部电终端(6)的可移动电接触件(5),以便在故障电流检测器件检测到故障因而故障电流限制器单元(1)已限制电流后中断电流,其中故障电流限制器单元(1)包括可移动的电滑动接触部件(8),其电气地设置在真空断续器(断路器单元)(2)的上部电终端(6)和真空断续器(断路器单元)(2)的可移动电接触件(5)之间,并且能够在邻近上部电终端(6)的短路位置(A)和远离上部电终端(6)的远程位置(B)之间移动以向电流提供最大电阻。 |
6 |
带串联隔离开关的自动开关的操作机构 |
CN00809349.0 |
2000-05-26 |
CN1177346C |
2004-11-24 |
K·J·约翰森 |
一种用于自动开关的操作机构,提供了一种自动开关的断路器元件(3)和与其串联的隔离开关(2)之间机械联锁的改进形式。一个轴(82)在断路器的动触头和双臂曲柄(50)的轮廓之间传递线性运动,双臂曲柄和一个连杆(70)相连接,用来手动旋转双臂曲柄,还和一个连杆(60)相连接,使隔离开关的动触头(20)在断开和闭合位置之间移动。双臂曲柄的轮廓和连杆的几何形状是这样的:当双臂曲柄位于起始位置时,断路器和隔离开关的动触头都位于闭合位置,当双臂曲柄从起始位置顺时针方向旋转一个角度X,断路器的动触头移动到断开位置,而隔离开关的动触头(20)仍然保持在闭合位置。当双臂曲柄(50)在顺时针方向进一步旋转经过一个预定的角度Z而达到双臂曲柄预定的运动极限时,隔离开关的动触头(20)移向断开位置,而断路器的动触头保持在断开位置,这是通过双臂曲柄型面(59)一个具有固定半径R2的扇区来实现的。当双臂曲柄(50)旋转回到起始位置时,在断路器的动触头移动回到其闭合位置之前,隔离开关的动触头(20)回到闭合位置。 |
7 |
SELF-RECOVERY CURRENT LIMITING FUSE |
US12741464 |
2008-10-20 |
US20100259354A1 |
2010-10-14 |
Shinya Ohtsuka; Hiroki Suetomi; Fumihiro Akiyoshi; Hiroo Arikawa |
A liquid matrix of a nonmagnetic material is accommodated within an insulative container of a nonmagnetic material, and a pair of electrodes is disposed within the insulative container such that the electrodes face each other via the liquid matrix. Conductive particles are fluidly dispersed in the liquid matrix. A magnetic field generation section is provided externally of the insulative container so as to generate a magnetic field in a direction orthogonal to a fuse element to be formed between the paired electrodes through chaining of the solid particles. |
8 |
Terminal pad for an insulator assembly |
US09961402 |
2001-09-25 |
US06713679B2 |
2004-03-30 |
Gerald B. Roberts |
An insulator assembly includes first and second terminal pads having angularly oriented first and second portions. First openings in the first portions facilitates connecting to the first and second switch assemblies. Second openings in the second portions receives fasteners. The first and second switch assemblies and a bypass switch assembly are mounted to a base. The bypass switch assembly is electrically parallel to the first and second switch assemblies. A support mounting bracket is attached to the base to secure the base to a support. |
9 |
Terminal pad for an insulator assembly |
US09961402 |
2001-09-25 |
US20030057186A1 |
2003-03-27 |
Gerald
B.
Roberts |
One of the foregoing objectives is basically attained by providing an insulator assembly including a terminal pad having a base that has angularly oriented first and second portions. A first opening in the first portion of the base facilitates connecting to the switch assembly. A second opening in the second portion of the base receives a fastener. |
10 |
Fault current limiter arrangement |
US14693412 |
2015-04-22 |
US09912141B2 |
2018-03-06 |
Dietmar Gentsch |
A fault current limiter arrangement for a low, medium and high voltage electricity grid, including a fault current limiter unit which is arranged in line with a circuit breaker unit including a fixed electrical contact which is connected to a lower electrical terminal and a movable electrical contact which is connected to an upper electrical terminal, in order to interrupt the current flow after the fault current limiter unit has limited the current flow in a detected fault event. The fault current limiter unit includes a movable electrical sliding contact part which is electrically arranged between the upper electrical terminal of the circuit breaker unit and the movable electrical contact of the circuit breaker unit, and which is movable between a short circuit position adjacent to the upper electrical terminal and a remote position far from the upper electrical terminal for providing a maximum electrical resistance for the current flow. |
11 |
FAULT CURRENT LIMITER ARRANGEMENT |
US14693412 |
2015-04-22 |
US20150236497A1 |
2015-08-20 |
Dietmar GENTSCH |
A fault current limiter arrangement for a low, medium and high voltage electricity grid, including a fault current limiter unit which is arranged in line with a circuit breaker unit including a fixed electrical contact which is connected to a lower electrical terminal and a movable electrical contact which is connected to an upper electrical terminal, in order to interrupt the current flow after the fault current limiter unit has limited the current flow in a detected fault event. The fault current limiter unit includes a movable electrical sliding contact part which is electrically arranged between the upper electrical terminal of the circuit breaker unit and the movable electrical contact of the circuit breaker unit, and which is movable between a short circuit position adjacent to the upper electrical terminal and a remote position far from the upper electrical terminal for providing a maximum electrical resistance for the current flow. |
12 |
Operating mechanism for autorecloser with series disconnector |
US09744725 |
2001-04-24 |
US06653918B1 |
2003-11-25 |
Kenneth Joseph Johnson |
An operating mechanism for an autorecloser provides an improved form of mechanical interlock between the circuit breaker element (3) of an autorecloser and a disconnector (2) in electrical series with it A shaft (82) transmits linear motion between the circuit breaker's moveable contact and the profile of a bell crank (50), the bell crank being attached to a link (70) for manual rotation of the bell crank and also to a link (60) for moving a moveable contact (20) of the disconnector between CLOSED and OPEN positions. The geometry of the bell crank profile and linkages is such that when the bell crank is rotated clockwise through an angle X from a starting position in which the moveable contacts of both the circuit breaker and the disconnector are in the CLOSED position, the moveable contact of the circuit breaker is moved to an OPEN position while the moveable contact (20) of the disconnector is maintained CLOSED. During further clockwise rotation of the bell crank (50) through a further set angle Z to a predetermined limit of movement of the bell crank, the moveable contact (20) of the disconnector is moved to an OPEN position while the moveable contact of the circuit breaker is maintained in the OPEN position by a sector of the bell crank profile (59) which is of constant radius R2. When the bell crank (50) is rotated back to its starting position, the moveable contact (20) of the disconnector is moved back to its CLOSED position before the moveable contact of the circuit breaker is moved back to its CLOSED position. |
13 |
Self-healing current-limiting fuses |
JP2007291555 |
2007-11-09 |
JP5050265B2 |
2012-10-17 |
信也 大塚; 広樹 末富; 史博 秋吉; 浩雄 蟻川 |
|
14 |
Self-recovering current-limiting fuse |
JP2007291555 |
2007-11-09 |
JP2009117271A |
2009-05-28 |
OTSUKA SHINYA; SUETOMI HIROKI; AKIYOSHI FUMIHIRO; ARIKAWA HIROO |
PROBLEM TO BE SOLVED: To surely secure a cut-off operation at the time of overcurrent in a self-recovering current-limiting fuse in which a current flowing state is secured by concatenating conductive particles in a liquid matrix by using dielectrophoretic force.
SOLUTION: The liquid matrix of a non-magnetic material is housed in an insulated container of a non-magnetic material, and a pair of electrodes mutually opposing via this liquid matrix are arranged. The conductive particles are fluidized and dispersed in the liquid matrix. The insulated container is outside equipped with a magnetic field generating part to generate the magnetic field in a direction orthogonal to a fuse element formed by concatenation of solid particles between a pair of electrodes.
COPYRIGHT: (C)2009,JPO&INPIT |
15 |
Method of operating a wind turbine plant |
US14765938 |
2013-02-15 |
US09556853B2 |
2017-01-31 |
Manoj Gupta; Dilip Kumar Guru; Amit Kumar Gupta |
A method of operating a wind turbine plant is provided. Such a wind turbine plant comprises at least one transmission branch comprising a plurality of wind turbine generators and coupled to an electrical grid at a point of common coupling through at least one circuit breaker comprising a breaking capacity. The method comprises monitoring the electrical grid for a low voltage fault event; and if a low voltage fault event is detected: calculating a grid short circuit strength, determining a short circuit current limit if the grid short circuit strength requires an initial fault current contribution which exceeds the breaking capacity of the circuit breaker to be passed through the circuit breaker, determining a maximum fault current contribution based on the short circuit current limit and operating the wind turbine generators to provide to the electrical grid the maximum fault current contribution. |
16 |
A METHOD OF OPERATING A WIND TURBINE PLANT |
US14765938 |
2013-02-15 |
US20150369217A1 |
2015-12-24 |
Manoj GUPTA; Dilip Kumar GURU; Amit Kumar GUPTA |
A method of operating a wind turbine plant is provided. Such a wind turbine plant comprises at least one transmission branch comprising a plurality of wind turbine generators and coupled to an electrical grid at a point of common coupling through at least one circuit breaker comprising a breaking capacity. The method comprises monitoring the electrical grid for a low voltage fault event; and if a low voltage fault event is detected: calculating a grid short circuit strength, determining a short circuit current limit if the grid short circuit strength requires an initial fault current contribution which exceeds the breaking capacity of the circuit breaker to be passed through the circuit breaker, determining a maximum fault current contribution based on the short circuit current limit and operating the wind turbine generators to provide to the electrical grid the maximum fault current contribution. |
17 |
Self-recovery current limiting fuse |
US12741464 |
2008-10-20 |
US08299887B2 |
2012-10-30 |
Shinya Ohtsuka; Hiroki Suetomi; Fumihiro Akiyoshi; Hiroo Arikawa |
A liquid matrix of a nonmagnetic material is accommodated within an insulative container of a nonmagnetic material, and a pair of electrodes is disposed within the insulative container such that the electrodes face each other via the liquid matrix. Conductive particles are fluidly dispersed in the liquid matrix. A magnetic field generation section is provided externally of the insulative container so as to generate a magnetic field in a direction orthogonal to a fuse element to be formed between the paired electrodes through chaining of the solid particles. |
18 |
Method and Apparatus for Using Momentary Switches in Pulsed Power Applications |
US11844889 |
2007-08-24 |
US20080067980A1 |
2008-03-20 |
Frederick MacDougall |
A capacitor based pulse forming network includes a plurality of inductors adapted to be coupled to a load, a plurality of capacitor units, and a plurality of switches. Each switch couples a respective capacitor unit to a respective inductor. Multiple capacitor units are coupled to each inductor by separate switches and are adapted to be switched to a closed position to discharge the respective capacitor unit for a time interval of less than about 50 milliseconds. The plurality of switches are adapted to non-simultaneously discharge at least some of the multiple capacitor units to provide non-simultaneous pulses through a given inductor to the load and not through other inductors. |
19 |
Reset-type station protector |
US70156557 |
1957-12-09 |
US2866868A |
1958-12-30 |
CARLSON ROBERT C; WITTE WALTER W |
|
20 |
Fault current limiter arrangement |
EP12007263.2 |
2012-10-22 |
EP2722861B8 |
2016-09-21 |
Gentsch, Dietmar |
Fault current limiter arrangement for a low, medium to high voltage electricity grid, consisting of a fault current limiter unit (1) which is arranged in line with a vacuum interrupter (circuit breaker unit) (2) comprising a fixed electrical contact (3) which is connected to a lower electrical terminal (4) and a movable electrical contact (5) which is connected to an upper electrical terminal (6), in order to interrupt the current flow after the fault current limiter unit (1) has limited the current flow in fault event, detected by fault current detection means, wherein the fault current limiter unit (1) comprises a movable electrical sliding contact part (8) which is electrically arranged between the upper electrical terminal (6) of the vacuum interrupter (circuit breaker unit) (2) and the movable electrical contact (5) of the vacuum interrupter (circuit breaker unit) (2), and which is movable between a short circuit position (A) adjacent to the upper electrical terminal (6) and a remote position (B) far from the upper electrical terminal (6) for providing a maximum electrical resistance for the current flow. |