摘要:
A surge arrester is described which includes at least two electrodes. At least one of the electrodes includes a ventilation channel. The internal area of the surge arrester is connected to an external area of the surge arrester via the ventilation channel, wherein the ventilation channel is closed by means of a fusible element. The fusible element is preferably arranged at that end of the ventilation channel which faces the external area of the surge element.
摘要:
An overvoltage arrester includes at least two electrodes and a melt element that connects one of the electrodes to an outer terminal of the overvoltage arrester. An extinguishing device is designed to extinguish an electric arc.
摘要:
An overvoltage arrester includes at least two electrodes and a melt element that connects one of the electrodes to an outer terminal of the overvoltage arrester. An extinguishing device is designed to extinguish an electric arc.
摘要:
A surge arrester is described which includes at least two electrodes. At least one of the electrodes includes a ventilation channel. The internal area of the surge arrester is connected to an external area of the surge arrester via the ventilation channel, wherein the ventilation channel is closed by means of a fusible element. The fusible element is preferably arranged at that end of the ventilation channel which faces the external area of the surge element.
摘要:
An electrical protection component with a short-circuiting device includes a gas-filled surge arrester that includes at least two electrodes. Preferably, one electrode in each case is arranged at the ends of the surge arrester. The electrical protection component has a thermal short-circuiting device, wherein the thermal short-circuiting device includes a clip having at least two sections. At least a first section of the clip is attached to the surge arrester by snap action. At least a second section of the clip at least partly surrounds the first section and is spaced apart from the first section by means of a fusible element. The second section has a short-circuiting link at an end. The short-circuiting link electrically connects the electrodes of the surge arrester to one another in the case where the fusible element melts.
摘要:
In order to simplify the mountability of electrode terminals in the form of band-like clips on either two-electrode or three-electrode arresters, the clips are resiliently fashioned in a circumferential direction. When such a clip axially projects beyond a foot part of the respective end electrode, the projecting region in a three-electrode arrester can be part of a short-circuit device which electrically connects to the middle electrode, potentially in combination with an auxiliary discharge path.
摘要:
An electrical protection component with a short-circuiting device includes a surge arrester including at least two electrodes. The electrical protection component has at least one fusible element having a geometrical form including at least one cavity. A short-circuiting link is arranged at the surge arrester, wherein the short-circuiting link presses onto the fusible element. The short-circuiting link is spaced apart from the electrodes by means of the fusible element.
摘要:
A surge arrester includes a short-circuit device. The short-circuit device includes at least one first base element. The first base element is rigidly connected in an electrically conducting and mechanical manner to a first electrode of the surge arrester. The short-circuit device also includes at least one spring arm arranged on the base element. The free end of the spring arm has a distance to the base element, and the spring arm extends over at least two adjoining electrodes of the surge arrester.
摘要:
A surge arrester includes an outer electrode and an other electrode. An electrically conductive contact element is spaced apart from the outer electrode by an air gap. The electrically conductive contact element is pretensioned by a spring mechanism that exerts a spring force on the contact element in the direction towards the outer electrode. An electrically conductive connection is located between the other electrode and the contact element. The air gap between the outer electrode and the contact element is arranged in a tightly enclosed hollow space.
摘要:
The invention is directed to a surge arrestor having a middle electrode and at least one outer electrode, in which an electrically conductive spring clip is secured to the middle electrode and exerts a spring power on the outer electrode; in which an electrical component part that is non-conductive at the trigger voltage of the surge arrestor and generates heat given a flow of current is arranged between the spring clip and the outer electrode; in which the spring clip lies against an electrically conductive contact element that is secured to a spacer element using a fusible mass and that is spaced from the outer electrode; and in which, when the fusible mass melts, the contact element is pressed against the outer electrode by the spring clip. The trigger mechanism has the advantage that it reacts very quickly and thereby reduces the formation of sparks and the fire hazard as well.