FIELD: electricity.
SUBSTANCE: cartridge of disconnector is made in the form of a disposable replaceable slot, comprising a body of dielectric installed in a seat of the bottom station body, and the external walls of the dielectric body in the upper part form a cavity to arranged connecting current-conducting elements, which are electrically connected to a current-conducting element. At diametrically opposite walls in the upper part of the body there are slots made to arrange a fusible element in the form of a thread, ends of which are pulled via the cartridge body and are mechanically connected with movable elements of the bottom station disconnector. The current-conducting element is arranged in the form of a spiral from a heat-conducting material with high electric resistance. Ends of spiral are electrically connected with contacts of the bottom station. The external ends of each of two connecting current-conducting elements by means of a sealed input-output provide for spiral connection with a source of electric current, and the internal ends are connected to the opposite ends of the spiral wound around a fusible element to ensure heat transfer from the spiral heated during current passage to a refractory element made of material that ensures tensile load developed by movable elements of the bottom station disconnector.
EFFECT: invention provides for reliable actuation of mechanical joint of bottom station for disconnection from ballast, possibility to operate in water with low concentration of salts and simplified operation.
12 cl, 5 dwg
