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Device and method for checking cable wiring

A cable and calibration technology, which is applied in the direction of measuring devices, measuring electricity, and measuring electrical variables, etc., can solve problems such as low work efficiency, long on-site work hours, and normal production impact, so as to improve work efficiency, shorten downtime, The effect of reducing labor intensity

Pending Publication Date: 2018-02-02
MAANSHAN IRON & STEEL CO LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

[0002] In the power supply system, when performing cable maintenance and troubleshooting, the cable needs to be disconnected from the switch cabinet. When the maintenance is completed and the operation is resumed, in order to ensure the correctness of the wiring, the phase sequence of the multiple wires in the cable needs to be checked. Confirmation to prevent short-circuit accidents caused by cross-connection. The confirmation of this phase sequence often requires the removal of electrical equipment. This confirmation method results in long on-site working hours and low work efficiency. production impact

Method used

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  • Device and method for checking cable wiring

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Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with accompanying drawing, so that those skilled in the art can understand more clearly, as figure 1 Shown, as the device of the present invention comprises:

[0016] Transformer 2, the first terminal of the input terminal of the transformer 2 is connected to the control switch 1, the other end of the control switch 1 is connected to the first input conductor, and the second terminal of the input terminal of the transformer 2 is connected to the second input conductor; the transformer The first terminal of the output end of the transformer 2 is connected to the ammeter 3, the other end of the ammeter 3 is connected to the first output wire, and the second terminal of the output end of the transformer 2 is connected to the second output wire.

[0017] The input voltage of the transformer 2 is AC 220V, and the output voltage of the transformer 2 is AC 6V.

[0018] Described transformer 2, cont...

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Abstract

The invention discloses a device and a method for checking cable wiring. The device comprises a transformer, a control switch connected with an input end of the transformer, and an ampere meter connected with an output end of the transformer. The method comprises the following steps that: at a load side, any one of to-be-checked cables is connected with a shielding ground wire of the cable in a short-circuit mode; at a power-supply side, a second output wire of the device is connected with the shielding ground wire of the cable, and a first output wire of the device is connected with any one of the cables for a short period of time; the ampere meter is observed, and when an pointer of the ampere meter swings greatly, the wire connected with the first output wire of the device and the wireconnected with the shielding ground wire at the load side are the same wire, so the first wire is checked out. Electric equipment at the load side of the cable does not need to be disassembled duringchecking of the cable wiring, thereby reducing the labor intensity, improving the working efficiency and shortening the equipment shutdown time.

Description

technical field [0001] The invention belongs to the technical field of power supply, in particular to a device and method for checking cable connections. Background technique [0002] In the power supply system, when performing cable maintenance and troubleshooting, the cable needs to be disconnected from the switch cabinet. When the maintenance is completed and the operation is resumed, in order to ensure the correctness of the wiring, the phase sequence of the multiple wires in the cable needs to be checked. Confirmation to prevent short-circuit accidents caused by cross-connection. The confirmation of this phase sequence often requires the removal of electrical equipment. This confirmation method results in long on-site working hours and low work efficiency. Production is affected. Contents of the invention [0003] In order to solve the above existing problems, the present invention proposes a device and method for checking cable wiring, so that it is not necessary to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/02
CPCG01R31/58
Inventor 袁军芳吴勇李元胜
Owner MAANSHAN IRON & STEEL CO LTD
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