Abstract:
본 발명은 진공차단부와 가스차단부를 직렬로 연결하여 고전압 DC 선로에 흐르는 고장전류를 차단하도록 하는 고전압 DC 차단기에 관한 것이다. 본 발명에 따른 고전압 DC 차단기는, 직류(DC) 선로에 설치되고 상기 DC 선로의 일측 또는 타측에 고장발생시 동작하여 상기 DC 선로의 전류를 차단하기 위한 진공차단부; 상기 진공인터럽터의 일측에 직렬로 연결된 가스차단부; 상기 진공차단기(110)에 병렬연결되고 LC 공진을 발생하기 위해 직렬연결된 커패시터 및 리액터를 포함하는 LC 회로; 상기 LC 회로에 직렬연결되어 양방향 전류흐름을 스위칭하는 제1 양방향 스위칭소자; 및 상기 LC 회로에 병렬연결되어 양방향으로 LC 공진이 이루어지도록 전류흐름을 스위칭하는 제2 양방향 스위칭소자를 포함한다.
Abstract:
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.
Abstract translation:用于低,中,高电压电网的故障限流器装置,包括与包括固定电触点(3)的真空断路器(断路器单元)(2)配合的故障限流器单元(1) 其连接到下电端子(4)和连接到上电端子(6)的可移动电触头(5),以便在故障限流器单元(1)限制了电流限制器单元 由故障电流检测装置检测到的故障事件中的电流,其中故障限流器单元(1)包括可动电滑动接触部分(8),其电气地布置在真空断路器的上电端子(6) 断路器单元)(2)和真空断路器(断路器单元)(2)的可移动电触头(5),并且其可在与上电气端子(6)相邻的短路位置(A)和 REM 远离上电气端子(6)的位置(B),用于为电流提供最大的电阻。
Abstract:
A dropout recloser is capable of in accordance with its operating programming after a predetermined number of fault interrupting operations, e.g., 1, 2, 3 or more but typically 3, to drop out of a cutout and hang freely in a hinge contact of the cutout providing sectionalization with an observable visible gap. The recloser includes fault interrupting and reclosing components, a drop out mechanism and a controller. The drop out mechanism may include a bi-stable actuator to affect fault interrupting operation and dropout operation. The device may include motion limiting structures. The recloser may have a number of operating modes or sequences.
Abstract:
Die Erfindung betrifft ein elektrisches Bauelement mit einem elektrischen Funktionsraum und einem elektrischen Isolationsraum, dadurch gekennzeichnet, dass der Isolationsraum zumindest teilweise mit einem Gemisch gefüllt ist, das folgende Komponenten umfasst: - eine flüssige Komponente, die wiederum 1,1 Diphenylethan und/oder Benzyltoluene enthält und - ein feste Komponente, die ein granuliertes Polymer umfasst, wobei ein Unterschied zwischen der Dichte des Polymers und der Dichte der flüssigen Komponente weniger als 0,5 g/cm³ beträgt.
Abstract:
A high-speed arc terminator for an electrical power distribution system includes a sealed, evacuated housing, and a controllable mechanical switch having first and second electrically conductive contacts enclosed within the housing and adapted to be coupled to the power distribution system outside the housing. A trigger conductor extends into the housing and has an exposed end near the gap between the contacts when the contacts are in the open position. At least one of the contacts is movable between an open position in which the contacts are separated by a gap, and a closed position in which the contacts engage each other, and an operating mechanism is provided for moving the at least one contact between the open and closed positions. A high voltage source is controllably coupled to the trigger conductor for supplying a high-voltage pulse to the trigger conductor in response to the detection of an arcing fault. The high-voltage pulse produces an arc within the gap between the contacts, to shunt fault current from the power distribution system across the gap, from one of the contacts to the other, before the contacts engage each other.