Crosslinked polyethylene insulation shielding type cable for frequency changer
A cross-linked polyethylene, insulation and shielding technology, applied in the direction of insulated cables, insulated conductors, cables, etc., can solve the problems of frequency converter work influence, signal disorder, short circuit, etc., to improve service life, improve reliability, and good insulation resistance burn effect
Inactive Publication Date: 2012-07-25
ANHUI XINKE CABLE GROUP
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Problems solved by technology
When the inverter converts the current frequency, it will have great interference and influence on the electromagnetic field near the inverter cable, resulting in signal disorder and short circuit, which will seriously affect the operation of the inverter.
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[0011] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with the embodiments and accompanying drawings. The embodiments are only used to explain the present invention and do not limit the protection scope of the present invention.
[0012] Such as figure 1 As shown, a cross-linked polyethylene insulated and shielded frequency converter cable of the present invention includes an outer sheath layer 5, and a copper wire braided shielding layer 4 is arranged inside the outer sheath layer 5, and the copper wire braided shielding layer 4 is provided with a wrapping layer 3, and three phase wires are arranged in the wrapping layer 3, and each phase wire includes a copper conductor 1 and a cross-linked polyethylene phase wire insulation layer 2, and two of the three phase wires are There is a ground wire evenly distributed between them, and each ground wire includes a ground wire conductor 6 and a c...
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The invention relates to a crosslinked polyethylene insulation shielding type cable for a frequency changer, which comprises an outer jacket layer (5) that is internally provided with a copper wire weaved shielding layer (4). The copper wire weaved shielding layer (4) is internally provided with a wrapping layer (3) which is provided with three phase lines. Each phase line comprises a copper conductor (1) and a crosslinked polyethylene phase line insulating layer (2). Ground wires are uniformly among the three phase lines. Each ground line comprises a ground line conductor (6) and a crosslinked polyethylene ground line insulating layer (7). Filling layers (8) are arranged among the phase lines, the ground lines and the wrapping layer (3). The copper wire weaved shielding layer (4) is weaved by copper wires that have thickness of 0.1-0.2mm. The filling layers (8) use polypropylene ropes and glass fiber ropes as fillers. The outer jacket layer (5) is extruded by using halogen free low smoke polyolefin materials as raw material.
Description
technical field [0001] The invention relates to a cable for a frequency converter, in particular to a cable for a shielded frequency converter with cross-linked polyethylene insulation. Background technique [0002] The frequency converter is a power control device that converts the power frequency power supply to another frequency by using the on-off function of the power semiconductor device, and has a large number of applications in industry. When the inverter converts the current frequency, it will cause great interference and influence on the electromagnetic field near the inverter cable, resulting in signal disorder and short circuit, which will seriously affect the operation of the inverter. Contents of the invention [0003] The problem to be solved by the present invention is to provide a cross-linked polyethylene insulated and shielded frequency converter cable, which can well prevent the electromagnetic field near the cable from being disturbed by the frequency ...
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IPC IPC(8): H01B7/17H01B7/18H01B7/295H01B7/02
Inventor 巫后臻谢太阶巫菊
Owner ANHUI XINKE CABLE GROUP