摘要:
Le transformateur électrique 1 comporte une cuve 4 contenant un diélectrique liquide ou gazeux 5, et dans laquelle sont immergés : un circuit primaire et un circuit secondaire, et un dispositif de protection relié au circuit primaire et comportant un disjoncteur 15 commandé par des moyens de déclenchement et un ou plusieurs fusibles 11. Les fusibles sont disposé entre une traversée 6 de la cuve et le disjoncteur 15. Les fusibles 11, le disjoncteur 15 et les moyens de déclenchement sont associés de telle manière que dans des conditions correspondant à un court-circuit aux bornes du circuit secondaire, les organes de contact du disjoncteur se séparent et interrompent le courant sans que ne débute une fusion du fusible, et qu'il existe une valeur seuil d'intensité du courant traversant le fusible, inférieure au pouvoir de coupure du pôle correspondant du disjoncteur et au delà de laquelle la fusion du fusible est achevée avant qu'un ordre de séparation des organes de contact donné par les moyens de déclenchement ait pu entraîner la séparation des contacts.
摘要:
The present invention relates to a measurement module (100, 100', 101, 101', 100") for a fuse block base which is more versatile, useful and optimal than existing measurement modules, needing less space for cables, where said measurement module (100, 100', 101, 101', 100") is connectable to output contacts (5, 5') of a fuse block base (1), on which at least one intensity transformer is mounted to provide at least one analog current measurement signal; where the measurement module (100, 100', 101, 101', 100") additionally comprises an analog-to-digital converter (40) with at least one analog input (41) configured to receive said analog current measurement signal, and with at least one digital connection port comprising at least one digital output (110).
摘要:
The present invention relates to a subassembly for a switch fuse arrangement (110), in particular a switch fuse arrangement for bus bar systems or installed devices, in particular having one or multiple switch fuse units to receive a fuse holder (100) each, which is constructed such that it is able to receive a fuse insert (200), and having a measuring device for determining electric operating values of the switch fuse arrangement, wherein the measuring device has measuring electronics (300) and at least one indicating device (120) for indicating at least one of the electric operating values determined by the measuring device, and wherein the subassembly comprises at least one coil device (400), which is designed such that, by means of induction, it is able to provide energy for the measuring electronics (300) and/or the at least one indicating device (120). Furthermore, the present invention relates to a fuse holder for a subassembly, in particular for a switch fuse arrangement.
摘要:
The present invention relates to a measurement module (100, 100', 101, 101', 100") for a fuse block base which is more versatile, useful and optimal than existing measurement modules, needing less space for cables, where said measurement module (100, 100', 101, 101', 100") is connectable to output contacts (5, 5') of a fuse block base (1), on which at least one intensity transformer is mounted to provide at least one analog current measurement signal; where the measurement module (100, 100', 101, 101', 100") additionally comprises an analog-to-digital converter (40) with at least one analog input (41) configured to receive said analog current measurement signal, and with at least one digital connection port comprising at least one digital output (110).
摘要:
The electrical equipment comprises electrical elements (2, 2A, 3, 4, 8) corresponding to at least one phase (8) of the distribution network and housed in a tank (6). The equipment is insulated by means of a dielectric liquid (5) wherein the elements are immersed. The equipment comprises an input (9) for each phase (8) in the tank (6), and also a protection device (7), associated to at least one failure detector (10) and configured so that, in the event of detecting such a failure, a short circuit will be established in the phases (8). The protection device (7) is situated so as to establish said short circuit in a position before any protection (4), control (2, 2A) or transformer (3) element of the electrical equipment (1).