Multifunctional ship electrical equipment grounding equipment and application thereof

Abstract

The invention discloses multifunctional ship electrical equipment grounding equipment and application thereof in the field of electrical automation so as to improve the current-carrying capacity of agrounding device and protect a local circuit. According to the technical scheme, the grounding equipment comprises a common grounding wire brake and a standby grounding wire brake, and a threshold valve and a shunt are arranged between the standby grounding wire brake and a main circuit; the standby grounding wire brake comprises a box body, a first helical gear electrically connected with the shunt, and a second helical gear engaged with the first helical gear; the head end of a driving shaft is connected with the second helical gear, the tail end of the driving shaft is connected with a limiting device, a cylindrical cam is arranged between the second helical gear and the limiting device, and a moving block is slidably connected in a sliding groove of the cylindrical cam. Compared with the prior art of overall circuit detection, the technical scheme has the advantages that the threshold valve is used for guiding the overload current, so that the current drives the standby grounding wire brake, the grounding wire is connected with the ground to form an open circuit, overload protection is carried out, and the circuit is prevented from being burnt out.

Description

technical field [0001] The invention belongs to the field of electrical automation, in particular to a multifunctional earthing device for ship electrical equipment and its application. Background technique [0002] The grounding of ship electrical equipment is an important task in the ship construction process, which effectively meets the safety of various equipment and life safety. As ships become increasingly electrified, equipment grounding becomes increasingly important. The traditional grounding uses a single-core cable with a yellow-green line as a grounding device. Since the cable is a cylindrical object, the two ends of the cable are not fully contacted when they are in contact with the equipment and the hull, which makes the grounding effect poor and cannot meet the needs of ship electrical equipment. Especially for some equipment with high grounding requirements, such as some special working grounding and some equipment that eliminates circuit harmonics through g...

AI Technical Summary

Problems solved by technology

[0004] Although the above-mentioned equipment utilizes the side pressure plate to maximize the grounding area, it has not yet realized the overload protection of the internal circuit of the hull, and at the same time, the use of the one-way grounding wire has limitations on the ampacity of the grounding device

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