400Hz in-parallel balanced structure cable for ships and manufacture method thereof

Abstract

The invention relates to a 400Hz in-parallel balanced structure cable for ships and a manufacture method of the 400Hz in-parallel balanced structure cable. The center of a neutral wire conductor is provided with a steel wire stiffening member, wherein a neutral wire insulating layer extrudes outside the steel wire stiffening member; the periphery of a neutral insulated wire core is evenly distributed with six phase line insulated wire cores which are completely the same as one another and are sequentially tangent with one another, the two phase line insulated wire cores which are centro-symmetric with each other are taken as a mutual in-parallel set, gaps which are far away from the neutral insulated wire core among the two adjoining phase line insulated wire cores are respectively embedded with a control wire core set, and each control wire core set comprises three control wire cores which are twisted with one another and a copper braid shielding layer coated outside the control wire cores; and each control wire core set and each phase line insulated wire core are respectively and internally tangent with the same circle and are jointly twisted with the neutral insulated wire cores into a cable core, the periphery of the cable core is wound with a glass fiber tape, and the periphery of the glass fiber tape is extruded with an internal protecting bush and an external protecting bush. The cable simultaneously has the functions of a power cable and a control cable, and is large in carrying capacity, balanced in structure, and small in outer diameter and bending radius.

Description

technical field [0001] The invention relates to a composite cable, in particular to a balanced structure cable for 400 Hz parallel connection for ships. The invention also relates to a manufacturing method of a 400Hz parallel cable with a balanced structure for ships. Background technique [0002] The traditional ship equipment power system adopts 50Hz, which has been consistent with the popular supporting equipment, which is convenient for equipment selection. However, with the development of large ships, high power and light and flexible generator sets, the current 400Hz equipment system is gradually used in large ship equipment, requiring 400Hz special cables to match it. In the prior art, when a 50Hz cable is used in a 400Hz system, the resistance of the cable will increase greatly due to the increase in frequency, resulting in an increase in the line voltage drop during use, which restricts the realization of the expected purpose of the project; if the same current loa...

AI Technical Summary

Problems solved by technology

The three kinds of cables are distributed in a triangle in the cable core, and the roundness of the cable core is poor due to the large difference in outer diameter.

The three power cables of this cable have poor current-carrying capacity and large bending radius

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