Zero-sequence iron core
An iron core and zero-sequence technology, applied in the field of cable detection, can solve problems such as high-voltage cable damage, waste of labor costs, and economic losses of power companies, and achieve the effects of safe use, convenient detection, and simple structure
Inactive Publication Date: 2017-05-24
TIANJIN SAISI TECH DEV
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Problems solved by technology
At present, for the maintenance of high-voltage cables, it is usually sent to the site for inspection, which not only wastes labor costs, but also may cause damage to high-voltage cables due to untimely inspection, and also greatly reduces the service life and work efficiency of high-voltage cables. , bringing huge economic losses to power companies
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[0012] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0013] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0014] Such as figure 1 As shown, a zero-sequence iron core includes a left stand 1, a right stand 2, a fixed card 3, a steel sheet 4 and a coil 5, and the tops of the left stand 1 and the right stand 2 respectively set There is an opening, and the steel-absorbing sheet 4 and the fixed card 3 are put into the opening in turn, the fixed card 3 fixes the steel-absorbing sheet 4, and the steel-absorbing sheet 4 collects the magnetic field on the cable, and the magnetic field on the left vertical The outer sides of the frame 1 and the right stand 2 are respectively provided with a threaded hole, and an adjusting bolt 6 is arranged in the threaded hole, and the absorbing steel sheet 4 and th...
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The invention provides a zero-sequence iron core which comprises a left vertical frame, a right vertical frame, fixing clamps, steel attracting pieces and a coil. The top of the left vertical frame and the top of the right vertical frame are each provided with an open pore, the steel attracting pieces and the fixing clamps are sequentially put into the open pores, and the steel attracting pieces are fixed by the fixing clamps and collect a magnetic field on a cable; the outer side of the left vertical frame and the left side of the right vertical frame are each provided with a threaded pore, adjusting bolts are arranged in the threaded pores, and the steel attracting pieces and the fixing clamps can be fastened and clamped to the left vertical frame and the right vertical frame through the adjusting bolts; the coil is arranged between the left vertical frame and the right vertical frame and connected with a circuit board and transmits a signal to the circuit board. The steel attracting pieces collect the magnetic field on the cable and transmit the magnetic field to the circuit board through the coil, and the circuit can analyze whether the cable is grounded or not to achieve the cable grounding detection purpose; the zero-sequence iron core has the advantages of being simple in structure, safe in use, convenient to detect and the like.
Description
technical field [0001] The invention belongs to the field of cable detection, in particular to a zero-sequence iron core. Background technique [0002] With the continuous development of my country's power industry, the use of high-voltage cables can be seen everywhere, and faults such as grounding will occur in high-voltage cables during use. At present, for the maintenance of high-voltage cables, it is usually sent to the site for inspection, which not only wastes labor costs, but also may cause damage to high-voltage cables due to untimely inspection, and also greatly reduces the service life and work efficiency of high-voltage cables. , bringing huge economic losses to power companies. Contents of the invention [0003] In view of this, the present invention aims to propose a zero-sequence iron core with simple structure and safe use, so as to detect the grounding current of a 10kv cable. [0004] In order to achieve the above object, technical solution of the presen...
Claims
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IPC IPC(8): H01F38/14G01R31/02
Inventor 曲泰洲付宝龙
Owner TIANJIN SAISI TECH DEV