CN115655356A - Cable joint abnormity detection method - Google Patents
Cable joint abnormity detection method Download PDFInfo
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- CN115655356A CN115655356A CN202211203687.XA CN202211203687A CN115655356A CN 115655356 A CN115655356 A CN 115655356A CN 202211203687 A CN202211203687 A CN 202211203687A CN 115655356 A CN115655356 A CN 115655356A
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Abstract
The invention provides a method for detecting the abnormality of a cable joint, which comprises the following steps: step (1): collecting cable joint temperature information, magnetic field information, current information, sound signals, environmental temperature and humidity information; (2): making preliminary judgment according to the temperature information of the cable joint, and directly alarming if obvious abnormity exists; if no obvious abnormality exists, entering into step (3); (3): judging whether the cable joint is abnormal or not according to the magnetic field information, and if the cable joint is obviously abnormal, directly alarming; if no obvious abnormality exists, entering into (4); (4): judging whether the cable joint is abnormal or not according to the current information, and if the cable joint is obviously abnormal, directly alarming; if no obvious abnormality exists, entering into step (5); (5): judging whether the cable joint is abnormal or not according to the sound signal, and if the cable joint is obviously abnormal, directly alarming; if no obvious exception exists, returning to the step (1). The invention provides a method for detecting the abnormity of a cable joint, which can accurately and quickly detect the abnormity condition of the cable joint so as to ensure the safety of the cable joint.
Description
Technical Field
The invention belongs to the technical field of electric power detection, and particularly relates to a method for detecting abnormality of a cable joint.
Background
The cable joint is used for locking and fixing incoming and outgoing lines, so that the lines are smooth, the cables are kept sealed, the influence of the environment is prevented, the insulation of the cables is reduced, and the safety and reliability of electric energy transmission are further reduced.
The invention provides a method for detecting the abnormality of a cable joint, which is used for collecting various parameters of the cable joint and selecting a proper reference value according to different environmental humiture so as to improve the accuracy of a detection result.
Disclosure of Invention
The invention provides a method for detecting the abnormity of a cable joint, which can accurately and quickly detect the abnormity condition of the cable joint so as to ensure the safety of the cable joint.
The invention specifically relates to a method for detecting the abnormality of a cable joint, which comprises the following steps:
step (1): collecting the temperature information, the magnetic field information, the current information, the sound signal, the environmental temperature and the humidity information of the cable joint;
step (2): making preliminary judgment according to the cable joint temperature information, and if obvious abnormity exists, directly alarming; if no obvious abnormality exists, entering the step (3);
and (3): judging whether the cable joint is abnormal or not according to the magnetic field information, and if the cable joint is obviously abnormal, directly alarming; if no obvious abnormality exists, entering the step (4);
and (4): judging whether the cable joint is abnormal or not according to the current information, and if the cable joint is obviously abnormal, directly alarming; if no obvious abnormality exists, entering the step (5);
and (5): judging whether the cable joint is abnormal or not according to the sound signal, and if the cable joint is obviously abnormal, directly alarming; and (4) if no obvious abnormality exists, returning to the step (1).
The specific method for making preliminary judgment according to the cable joint temperature information comprises the following steps:
judging whether the temperature information of the cable joint is larger than a temperature reference value or not, if so, obviously abnormal cable joint; if not, further judging; the temperature reference value is selected according to the ambient temperature information.
The specific method for judging whether the cable joint is abnormal or not according to the magnetic field information comprises the following steps:
judging whether the magnetic field information is larger than a magnetic field reference value or not, if so, obviously abnormal cable joints; if not, further judging; the magnetic field reference value is selected according to the ambient temperature information.
The specific method for judging whether the cable joint is abnormal or not according to the current information comprises the following steps:
judging whether the current information is larger than a current reference value or not, if so, obviously abnormal cable joints; if not, further judging; the current reference value is selected according to the ambient temperature information.
The specific method for judging whether the cable joint is abnormal or not according to the sound signal comprises the following steps:
firstly, calculating a sound reference value according to the humidity signal;
secondly, judging whether the sound signal is larger than the sound reference value, if so, judging that the cable joint is abnormal; if not, the cable joint is normal.
The specific method for calculating the sound reference value according to the humidity signal comprises the following steps:
Compared with the prior art, the beneficial effects are: the cable joint abnormity detection method collects various parameters of the cable joint and selects a proper reference value according to different environmental humiture, thereby improving the accuracy of a detection result.
Drawings
Fig. 1 is a flowchart of the method for detecting an abnormality of a cable joint according to the present invention.
Detailed Description
The following describes in detail a specific embodiment of the method for detecting an abnormality of a cable joint according to the present invention with reference to the accompanying drawings.
As shown in fig. 1, the method for detecting an abnormality of a cable splice of the present invention includes the steps of:
step (1): collecting temperature information, magnetic field information, current information, sound signals, and environmental temperature and humidity information of the cable joint;
step (2): judging whether the temperature information of the cable joint is greater than a temperature reference value, if so, directly alarming when the cable joint is obviously abnormal; if not, no obvious abnormality exists, and the step (3) is carried out;
and (3): judging whether the magnetic field information is larger than a magnetic field reference value or not, if so, directly alarming when the cable joint is obviously abnormal; if not, no obvious abnormality exists, and the step (4) is carried out;
and (4): judging whether the current information is larger than a current reference value or not, if so, directly alarming when the cable joint is obviously abnormal; if not, no obvious abnormality exists, and the step (5) is carried out;
and (5): judging whether the cable joint is abnormal or not according to the sound signal, and if the cable joint is obviously abnormal, directly alarming; and (4) if no obvious abnormality exists, returning to the step (1).
The temperature reference value, the magnetic field reference value, the current reference value are selected according to the environment temperature information.
The specific method for judging whether the cable joint is abnormal or not according to the sound signal comprises the following steps:
firstly, calculating a sound reference value according to the humidity signal;
secondly, judging whether the sound signal is larger than the sound reference value, if so, judging that the cable joint is abnormal; if not, the cable joint is normal.
The specific method for calculating the sound reference value according to the humidity signal comprises the following steps:
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same. It will be understood by those skilled in the art that various modifications and equivalents may be made to the embodiments of the invention as described herein, and such modifications and variations are intended to be within the scope of the claims appended hereto.
Claims (6)
1. A cable joint abnormality detection method is characterized by comprising the following steps:
step (1): collecting temperature information, magnetic field information, current information, sound signals, and environmental temperature and humidity information of the cable joint;
step (2): making preliminary judgment according to the cable joint temperature information, and directly alarming if obvious abnormity exists; if no obvious abnormality exists, entering the step (3);
and (3): judging whether the cable joint is abnormal according to the magnetic field information, and if the cable joint is obviously abnormal, directly alarming; if no obvious abnormality exists, entering the step (4);
and (4): judging whether the cable joint is abnormal or not according to the current information, and if the cable joint is obviously abnormal, directly alarming; if no obvious abnormality exists, entering the step (5);
and (5): judging whether the cable joint is abnormal or not according to the sound signal, and if the cable joint is obviously abnormal, directly alarming; and (4) if no obvious abnormality exists, returning to the step (1).
2. The method for detecting the abnormality of the cable joint according to claim 1, wherein the specific method of making a preliminary judgment based on the temperature information of the cable joint is as follows: judging whether the temperature information of the cable joint is greater than a temperature reference value or not, if so, obviously abnormal cable joint; if not, further judging; the temperature reference value is selected according to the ambient temperature information.
3. The method for detecting the abnormality of the cable joint according to claim 2, wherein the specific method for judging whether the cable joint is abnormal or not according to the magnetic field information is as follows: judging whether the magnetic field information is larger than a magnetic field reference value or not, if so, obviously abnormal cable joints; if not, further judging; the magnetic field reference value is selected according to the ambient temperature information.
4. The method for detecting the abnormality of the cable joint according to claim 3, wherein the specific method for judging whether the cable joint is abnormal or not according to the current information is as follows: judging whether the current information is larger than a current reference value or not, if so, obviously abnormal cable joints; if not, further judging; the current reference value is selected according to the ambient temperature information.
5. The method for detecting the abnormality of the cable joint according to claim 4, wherein the specific method for judging whether the cable joint is abnormal or not according to the sound signal is as follows:
firstly, calculating a sound reference value according to the humidity signal;
secondly, judging whether the sound signal is larger than the sound reference value, if so, judging that the cable joint is abnormal; if not, the cable joint is normal.
6. The method of claim 5, wherein the specific method of calculating the acoustic reference value from the humidity signal is:
wherein d is the diameter of the cable joint conductor, B is the equivalent radius of the cable joint, h is the ambient humidity signal, h 1 Is a first ambient humidity reference value, h 2 Is the second ambient humidity reference value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211203687.XA CN115655356A (en) | 2022-09-29 | 2022-09-29 | Cable joint abnormity detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211203687.XA CN115655356A (en) | 2022-09-29 | 2022-09-29 | Cable joint abnormity detection method |
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| Publication Number | Publication Date |
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| CN115655356A true CN115655356A (en) | 2023-01-31 |
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| CN202211203687.XA Pending CN115655356A (en) | 2022-09-29 | 2022-09-29 | Cable joint abnormity detection method |
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| CN (1) | CN115655356A (en) |
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2022
- 2022-09-29 CN CN202211203687.XA patent/CN115655356A/en active Pending
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