CN118033477A - Insulation electric leakage detection system and detection method - Google Patents
Insulation electric leakage detection system and detection method Download PDFInfo
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- CN118033477A CN118033477A CN202311784348.XA CN202311784348A CN118033477A CN 118033477 A CN118033477 A CN 118033477A CN 202311784348 A CN202311784348 A CN 202311784348A CN 118033477 A CN118033477 A CN 118033477A
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- electric leakage
- leakage detection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
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- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The application discloses an insulation electric leakage detection system and a detection method, which relate to the field of insulation performance detection, wherein the detection system comprises: the electric leakage detection module comprises an electric leakage detection head and an electric leakage detection circuit, and the electric leakage detection head is electrically connected with the electric leakage detection circuit; the temperature detection module comprises a temperature sensor; the electric leakage detection circuit and the temperature sensor are electrically connected with the controller; the data information transmitting circuit is used for transmitting the acquired information to the data information transmitting circuit by the controller; the alarm information receiving platform is characterized in that the alarm information receiving platform is connected with the data information sending circuit, the data information sending circuit sends data information to the alarm information receiving platform, the alarm information receiving platform directly detects whether voltage exists on a cable or not, and the alarm information receiving platform does not need to rely on external insulation resistance for judgment.
Description
Technical Field
The invention belongs to the field of insulating property detection, and particularly relates to an insulating electric leakage detection system and a detection method.
Background
The insulation performance is detected at present mainly by detecting insulation resistance, wherein the insulation resistance is a measure for the safety of electrical equipment, and is used for inspecting the insulation performance of the electrical equipment, and a specified voltage is applied to an insulation part under specified temperature, humidity and pressure conditions, so that the measured resistance value directly relates to the safety of equipment or the safety of equipment users, and the insulation of equipment such as cables, substations and the like is an indispensable link in the process of power construction.
The insulation resistance is the resistance between the electrified part of the electric appliance and the exposed non-electrified insulation part, if the insulation material of the electric appliance is aged, the insulation performance of the insulation material is reduced, dangerous accidents such as electric leakage or short circuit of the electric appliance are easily caused, the insulation material can generate some bubble gaps and impurities during production, after the electric appliance is electrified, the bubbles easily cause circuit faults to generate some substances capable of corroding the insulation material, and the insulation material is seriously possibly broken down to cause irreparable loss.
The existing insulation leakage detection equipment mainly utilizes the following three methods to detect insulation leakage:
1. The direct measurement method is to directly measure the measured object, measure the direct voltage and current value, and calculate the insulation resistance value according to ohm's law, and the measuring instruments that can be used include insulation resistance tester (megohmmeter), high resistance meter, and galvanometer;
2. Comparing the known standard resistance data with the measured insulation resistance value by a comparison measurement method, wherein the comparison measurement method comprises a bridge method and a current comparison method;
3. The charge and discharge measurement method generally uses a standard capacitor to measure, and can also use an electrometer to measure insulation resistance, the self-discharge measurement method uses a high-voltage direct-current voltage source to measure, and can also use an electrostatic voltmeter to measure insulation resistance;
The three methods are all based on external devices, and the method is accurate in judging whether the leakage condition exists or not only when the insulation resistance is not affected in a specific temperature and humidity environment, and is not high in applicability.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an insulation electric leakage detection system and a detection method, and solves the problems in the background art.
The technical scheme is as follows:
in order to achieve the above purpose, the invention is realized by the following technical scheme:
an insulation electric leakage detection system and a detection method thereof, wherein the detection system comprises:
The electric leakage detection module comprises an electric leakage detection head and an electric leakage detection circuit, and the electric leakage detection head is electrically connected with the electric leakage detection circuit;
The temperature detection module comprises a temperature sensor;
the electric leakage detection circuit and the temperature sensor are electrically connected with the controller;
the data information transmitting circuit is used for transmitting the acquired information to the data information transmitting circuit by the controller;
the data information sending circuit sends the data information to the alarm information receiving platform;
The detection method comprises the following steps:
S1, disposing a leakage detection head on a detected insulator;
S2, binding an induction end of a temperature sensor on the insulator to be detected, and collecting the current temperature of the insulator to be detected by the temperature sensor;
s3, the controller uploads temperature information acquired by the temperature sensor to an alarm information receiving platform through a data information transmitting circuit, and the alarm information receiving platform displays the temperature information of the current measured insulator;
And S4, if the insulating material is broken, the electric leakage detection head can detect voltage, the electric leakage detection circuit starts to work, the detected voltage is converted into a digital signal and is sent to the controller for processing, and when the controller judges that electric leakage occurs, the electric leakage information is uploaded to the alarm information receiving platform through the data information sending circuit, and the platform displays an alarm and reminds a user.
In one possible implementation manner, the alarm information receiving platform sends alarm information to the user by using any one or more of a short message, a telephone and an APP.
In one possible implementation, the leakage detection head is composed of two copper wires.
In one possible implementation, before step S1, the power supply of the insulator to be tested is cut off, the connecting wires on the insulator to be tested are all removed, and the insulator to be tested is grounded for discharging.
The beneficial effects are that:
The invention directly detects whether the voltage exists on the cable or not, does not need to rely on external insulation resistance for judgment, has stronger anti-interference capability, is not easily influenced by external factors, and greatly improves the detection efficiency and stability;
In addition, use this scheme to detect the operation more convenient, with equipment deployment back login alarm information receiving platform, can look over the information in real time and need not to carry out other operations, availability factor is higher, more convenient and fast, and this scheme has increased a temperature measurement function, can real-time supervision survey thing surface temperature and demonstrate the temperature of survey thing at present through alarm information receiving platform.
Drawings
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a flow chart of the data information transmission circuit of the present invention processing data;
FIG. 3 is a circuit diagram of the leakage detection circuit of the present invention;
Fig. 4 is a circuit diagram of the data information transmission circuit of the present invention.
Detailed Description
The embodiment of the application solves the problems in the prior art by providing an insulation electric leakage detection system and a detection method.
The technical scheme in the embodiment of the application aims to solve the problems, and the overall thought is as follows:
Example 1
As shown in fig. 1 and 3, an insulation leakage detection system, the detection system includes:
The electric leakage detection module comprises an electric leakage detection head and an electric leakage detection circuit, and the electric leakage detection head is electrically connected with the electric leakage detection circuit;
The temperature detection module comprises a temperature sensor;
the electric leakage detection circuit and the temperature sensor are electrically connected with the controller;
the data information transmitting circuit is used for transmitting the acquired information to the data information transmitting circuit by the controller;
And the data information sending circuit sends the data information to the alarm information receiving platform.
Furthermore, the alarm information receiving platform sends alarm information to the user by adopting any one or a combination of a plurality of short messages, telephones and APP.
Furthermore, the electric leakage detection head consists of two copper wires, the oxidation resistance of the copper wires is good, the conductivity after oxidation is not easily affected, and the capacity of being affected by external environment is small.
Furthermore, before step S1, the power supply of the insulator to be tested needs to be cut off, all the connecting wires on the insulator to be tested need to be removed, and the insulator to be tested is grounded for discharging (large-sized insulator to be tested or equipment, and multiple discharging tests need to be performed for detecting).
Through the technical scheme:
When the electric leakage detecting head and the temperature sensor sensing end are deployed on the detected insulator, the temperature sensor collects the current temperature of the detected insulator, the temperature information collected by the temperature sensor is uploaded to the alarm information receiving platform through the data information sending circuit by the controller, and the alarm information receiving platform displays the current temperature information of the detected insulator so as to be used for grasping the temperature information of the detected insulator in real time;
If the insulating material breaks (the high-voltage insulator of the power equipment has partial discharge phenomenon in the degradation process and is easy to generate voltage), the electric leakage detection head can detect the voltage, the electric leakage detection circuit starts to work, the detected voltage is converted into a digital signal and is sent to the controller for processing, when the controller judges that the electric leakage occurs, the controller uploads the electric leakage information to the alarm information receiving platform through the data information sending circuit, and the platform displays an alarm and reminds a user;
The method directly detects whether voltage exists on the insulator to be detected, the electric leakage detection head is directly bound with the detected point, the electric leakage detection head is not easily interfered by external factors in the use process, the detection stability is improved, the judgment is not needed by depending on external insulation resistance (the insulation resistance detection is extremely easy to be interfered by external environment, the conductivity of the insulator is also increased along with the increase of external humidity, so that the insulation resistance value is reduced to influence the measurement accuracy), the anti-interference capability is stronger, the electric leakage detection head is not easily influenced by the external factors, and the detection efficiency and stability are greatly improved;
The scheme is used for detecting more conveniently, the equipment is deployed and then logged in the alarm information receiving platform, so that information can be checked in real time without other operations, the use efficiency is higher, the operation is more convenient and quick, the temperature measuring function is added, the temperature of the surface of a measured object can be monitored in real time, and the temperature of the current measured object is displayed through the alarm information receiving platform.
Example two
As shown in fig. 1 and 3, an insulation leakage detection method includes:
S1, disposing a leakage detection head on a detected insulator;
S2, binding an induction end of a temperature sensor on the insulator to be detected, and collecting the current temperature of the insulator to be detected by the temperature sensor;
s3, the controller uploads temperature information acquired by the temperature sensor to an alarm information receiving platform through a data information transmitting circuit, and the alarm information receiving platform displays the temperature information of the current measured insulator;
And S4, if the insulating material is broken, the electric leakage detection head can detect voltage, the electric leakage detection circuit starts to work, the detected voltage is converted into a digital signal and is sent to the controller for processing, and when the controller judges that electric leakage occurs, the electric leakage information is uploaded to the alarm information receiving platform through the data information sending circuit, and the platform displays an alarm and reminds a user.
Finally, it should be noted that: it is apparent that the above examples are only illustrative of the present invention and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. And obvious variations or modifications thereof are contemplated as falling within the scope of the present invention.
Claims (4)
1. An insulation electric leakage detection system and a detection method thereof, wherein the detection system comprises:
The electric leakage detection module comprises an electric leakage detection head and an electric leakage detection circuit, and the electric leakage detection head is electrically connected with the electric leakage detection circuit;
The temperature detection module comprises a temperature sensor;
the electric leakage detection circuit and the temperature sensor are electrically connected with the controller;
the data information transmitting circuit is used for transmitting the acquired information to the data information transmitting circuit by the controller;
the data information sending circuit sends the data information to the alarm information receiving platform;
The detection method comprises the following steps:
S1, disposing a leakage detection head on a detected insulator;
S2, binding an induction end of a temperature sensor on the insulator to be detected, and collecting the current temperature of the insulator to be detected by the temperature sensor;
s3, the controller uploads temperature information acquired by the temperature sensor to an alarm information receiving platform through a data information transmitting circuit, and the alarm information receiving platform displays the temperature information of the current measured insulator;
And S4, if the insulating material is broken, the electric leakage detection head can detect voltage, the electric leakage detection circuit starts to work, the detected voltage is converted into a digital signal and is sent to the controller for processing, and when the controller judges that electric leakage occurs, the electric leakage information is uploaded to the alarm information receiving platform through the data information sending circuit, and the platform displays an alarm and reminds a user.
2. The insulation leakage detection system and method according to claim 1, wherein: the alarm information receiving platform sends alarm information to the user by adopting any one or a combination of a plurality of short messages, telephones and APP.
3. The insulation leakage detection system and method according to claim 1, wherein: the electric leakage detection head consists of two copper wires.
4. The insulation leakage detection system and method according to claim 1, wherein: before S1, the power supply of the insulator to be tested is cut off, connecting wires on the insulator to be tested are removed completely, and the insulator to be tested is grounded for discharging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311784348.XA CN118033477A (en) | 2023-12-23 | 2023-12-23 | Insulation electric leakage detection system and detection method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311784348.XA CN118033477A (en) | 2023-12-23 | 2023-12-23 | Insulation electric leakage detection system and detection method |
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| CN118033477A true CN118033477A (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118566779A (en) * | 2024-07-26 | 2024-08-30 | 江苏顺辉电力工程有限公司 | Building circuit detection device with electric leakage positioning function |
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2023
- 2023-12-23 CN CN202311784348.XA patent/CN118033477A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118566779A (en) * | 2024-07-26 | 2024-08-30 | 江苏顺辉电力工程有限公司 | Building circuit detection device with electric leakage positioning function |
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