Abstract:
A switching module (38), intended to be used in a medium or high voltage DC breaker or a DC current limiter, comprises at least one power semiconductor switching element (1, 2), a gate unit (31 ) arranged to turn the at least one power semiconductor switching element on and off, respectively, according to a switching control signal, and an energy storage capacitor (25) arranged to provide power to a power supply input (29) of the gate unit. The switching module comprises further power transformation means (20) arranged to receive an optical power signal, to transform the optical power signal into an electrical power signal and to provide the electrical power signal to the energy storage capacitor (25).
Abstract:
A device (13) to break an electrical current flowing through a power transmission or distribution line (14) comprises a parallel connection of a main breaker (8) and a non-linear resistor (11), where the main breaker (8) comprises at least one power semiconductor switch of a first current direction. The device (13) further comprises a series connection of a high speed switch (10) comprising at least one mechanical switch and of an auxiliary breaker (9), the auxiliary breaker having a smaller on-resistance than the main breaker (8) and comprising at least one power semiconductor switch of the first current direction. The series connection is connected in parallel to the parallel connection. In a method to use the device (13) first the auxiliary breaker (9) is opened, thereby commutating the current to the main breaker (8), afterwards the high speed switch (10) is opened and afterwards the main breaker (8) is opened thereby commutating the current to the non-linear resistor (11). The device (13) can further be used in a current limiting arrangement.
Abstract:
A switching module (38), intended to be used in a medium or high voltage DC breaker or a DC current limiter, comprises at least one power semiconductor switching element (1, 2), a gate unit (31 ) arranged to turn the at least one power semiconductor switching element on and off, respectively, according to a switching control signal, and an energy storage capacitor (25) arranged to provide power to a power supply input (29) of the gate unit. The switching module comprises further power transformation means (20) arranged to receive an optical power signal, to transform the optical power signal into an electrical power signal and to provide the electrical power signal to the energy storage capacitor (25).
Abstract:
Un dispositivo (13) para interrumpir una corriente eléctrica que fluye a través de una línea de transmisión o distribución de energía (14) que comprende una conexión en paralelo de un interruptor principal (8) y un resistor no lineal (11), donde el interruptor principal (8) comprende por lo menos un conmutador semiconductor de energía de una primera dirección de corriente. El dispositivo (13) comprende adicionalmente una conexión en serie de un conmutador de alta velocidad (10) que comprende por lo menos un conmutador mecánico y de un interruptor auxiliar (9), el interruptor auxiliar tiene una resistencia de encendido más pequeña que el interruptor principal (8) y comprende por lo menos un conmutador semiconductor de energía de la primera dirección de corriente. La conexión en serie se conecta en paralelo a la conexión en paralelo. En un método para utilizar el dispositivo (13) primero se abre el interruptor auxiliar (9), conmutando por consiguiente la corriente al interruptor principal (8), después se abre el conmutador de alta velocidad (10) y después se abre el interruptor principal (8) conmutando por consiguiente la corriente al resistor no lineal (11). El dispositivo (13) se puede utilizar adicionalmente en una disposición que limita la corriente.
Abstract:
A device (13) to break an electrical current flowing through a power transmission or distribution line (14) comprises a parallel connection of a main breaker (8) and a non-linear resistor (11), where the main breaker (8) comprises at least one power semiconductor switch of a first current direction. The device (13) further comprises a series connection of a high speed switch (10) comprising at least one mechanical switch and of an auxiliary breaker (9), the auxiliary breaker having a smaller on-resistance than the main breaker (8) and comprising at least one power semiconductor switch of the first current direction. The series connection is connected in parallel to the parallel connection. In a method to use the device (13) first the auxiliary breaker (9) is opened, thereby commutating the current to the main breaker (8), afterwards the high speed switch (10) is opened and afterwards the main breaker (8) is opened thereby commutating the current to the non-linear resistor (11). The device (13) can further be used in a current limiting arrangement.
Abstract:
Un módulo de conmutación (38) destinado para ser utilizado en un disyuntor DC de voltaje alto o medio o un limitador de corriente DC comprende al menos un elemento de conmutación de semiconductor de energía (1, 2), una unidad de compuerta (31) acomodada para encender y apagar, respectivamente, al menos un elemento de conmutación de semiconductor de energía, de acuerdo con una señal de control de conmutación, y un condensador de almacenamiento de energía (25) acomodado para proporcionar energía a una entrada de suministro de energía (29) de la unidad de compuerta; el módulo de conmutación comprende además medios de transformación de energía (20) acomodados para recibir una señal de energía óptica, transformar la señal de energía óptica en una señal de energía eléctrica y proporcionar la señal de energía eléctrica al condensador de almacenamiento de energía (25).
Abstract:
A switching module (38), intended to be used in a medium or high voltage DC breaker or a DC current limiter, comprises at least one power semiconductor switching element (1, 2), a gate unit (31 ) arranged to turn the at least one power semiconductor switching element on and off, respectively, according to a switching control signal, and an energy storage capacitor (25) arranged to provide power to a power supply input (29) of the gate unit. The switching module comprises further power transformation means (20) arranged to receive an optical power signal, to transform the optical power signal into an electrical power signal and to provide the electrical power signal to the energy storage capacitor (25).