CN213337842U - Transformer electrical fault early warning system - Google Patents
Transformer electrical fault early warning system Download PDFInfo
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- CN213337842U CN213337842U CN202022144835.8U CN202022144835U CN213337842U CN 213337842 U CN213337842 U CN 213337842U CN 202022144835 U CN202022144835 U CN 202022144835U CN 213337842 U CN213337842 U CN 213337842U
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Abstract
The utility model relates to a transformer technical field, specific transformer electrical fault early warning system that says so, include: the system comprises a power transformer, a coupling unit, a field acquisition terminal, a communication unit and a background, wherein the coupling unit comprises a high-frequency sensor, a leakage current sensor, a noise sensor and a vibration sensor. The utility model discloses an with high frequency partial discharge, iron core ground current, power transformer comprehensive early warning system of space noise and mechanical vibration as main detection mode, through high frequency sensor, leakage current sensor, noise sensor and vibration sensor carry out high frequency pulse to power transformer, electric current, noise and vibration detection, with the noise, vibrate, electric current and high frequency pulse data coupling and transmission to on-the-spot acquisition terminal, on-the-spot acquisition terminal shows on the spot and through appointed communication protocol, communication mode goes up to cloud platform or appointed backstage demonstration analysis.
Description
Technical Field
The utility model relates to a transformer technical field specifically is a transformer electrical fault early warning system.
Background
A transformer is a stationary electrical device that is used to transform an ac voltage (current) of a certain value into another voltage (current) of the same frequency or different values. The transformer electrical fault early warning system is mainly applied to the power energy related fields of power grids, power generation, petrifaction, high-speed rails, steel and the like. The existing transformer electrical fault system is single in functionality and good in using effect. Therefore, an electrical fault early warning system for the transformer is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a transformer electrical fault early warning system to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a transformer electrical fault early warning system, comprising:
a power transformer as a detection object;
the coupling unit comprises a high-frequency sensor, a leakage current sensor, a noise sensor and a vibration sensor, the coupling unit is electrically connected with the power transformer, and high-frequency pulse, current, noise and vibration detection is carried out on the power transformer through the high-frequency sensor, the leakage current sensor, the noise sensor and the vibration sensor;
the field acquisition terminal is electrically connected with the coupling unit, couples and transmits the acquired data to the field acquisition terminal through the coupling unit, and displays the data on site through the field acquisition terminal;
the communication unit is a wireless communication unit or a wired communication unit and is electrically connected with the field acquisition terminal;
the background is a cloud platform or a designated background, the background is electrically connected with the communication unit, and data acquired by the field acquisition terminal is uploaded to the background through the communication unit for display analysis.
As further optimization of the technical scheme, the high-frequency sensor has a multi-source separation technology, accurately separates the discharge signals, and diagnoses the separated discharge signals respectively, so that the problem that multi-source superposition influences type diagnosis is perfectly solved.
As a further optimization of the technical solution, the leakage current sensor detects leakage current at milliamp level and leakage current at ampere level based on a high-sensitivity zero-flux transformer, thereby realizing full-scale coverage using one sensor.
As further optimization of the technical scheme, the noise sensor acquires sound data of the power transformer under abnormal working conditions, carries out spectrum analysis, extracts odd-even harmonic ratio, spectrum complexity and high-frequency energy bit characteristic parameters of the power transformer, and combines sound pressure level parameters to realize effective discrimination and early warning of direct current magnetic biasing, harmonic load, accessory loosening, cooling device abrasion and discharge operation defects of the power transformer.
As further optimization of the technical scheme, the vibration sensor acquires vibration data of the power transformer under abnormal working conditions, carries out spectrum analysis, extracts odd-even harmonic ratio, spectrum complexity and high-frequency energy bit characteristic parameters of the power transformer, and combines vibration amplitude parameters to realize effective judgment and early warning of internal winding looseness, iron core looseness and discharge operation defects of the power transformer.
As a further optimization of the technical solution, the wireless communication unit is 4G, WIFI or LoRa, and the wired communication unit is an optical fiber.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an with high frequency partial discharge, iron core ground current, power transformer comprehensive early warning system of space noise and mechanical vibration as main detection mode, through high frequency sensor, leakage current sensor, noise sensor and vibration sensor carry out high frequency pulse to power transformer, electric current, noise and vibration detection, with the noise, vibrate, electric current and high frequency pulse data coupling and transmission to on-the-spot acquisition terminal, on-the-spot acquisition terminal shows on the spot and through appointed communication protocol, communication mode goes up to cloud platform or appointed backstage demonstration analysis.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a transformer electrical fault early warning system, comprising:
a power transformer as a detection object;
the coupling unit comprises a high-frequency sensor, a leakage current sensor, a noise sensor and a vibration sensor, the coupling unit is electrically connected with the power transformer, and high-frequency pulse, current, noise and vibration detection is carried out on the power transformer through the high-frequency sensor, the leakage current sensor, the noise sensor and the vibration sensor;
the field acquisition terminal is electrically connected with the coupling unit, couples and transmits the acquired data to the field acquisition terminal through the coupling unit, and displays the data on site through the field acquisition terminal;
the system comprises a communication unit, a field acquisition terminal and a communication unit, wherein the communication unit is a wireless communication unit or a wired communication unit, specifically, the wireless communication unit is 4G, WIFI or LoRa, the wired communication unit is an optical fiber, and the communication unit is electrically connected with the field acquisition terminal;
the background is a cloud platform or a designated background, the background is electrically connected with the communication unit, and data acquired by the field acquisition terminal is uploaded to the background through the communication unit for display analysis.
Specifically, the high-frequency sensor has a multi-source separation technology, accurately separates the discharge signals, and diagnoses the separated discharge signals respectively, thereby perfectly solving the problem that the type diagnosis is influenced by multi-source superposition.
Specifically, the leakage current sensor is based on a high-sensitivity zero-flux transformer to detect leakage current in milliampere level and leakage current in ampere level, so that full-range coverage with one sensor is realized.
Specifically, the noise sensor acquires sound data of the power transformer under abnormal working conditions, carries out spectrum analysis, extracts odd-even harmonic ratio, spectrum complexity and high-frequency energy bit characteristic parameters of the power transformer, and combines sound pressure level parameters to realize effective discrimination and early warning of direct current magnetic biasing, harmonic load, accessory loosening, cooling device abrasion and discharge operation defects of the power transformer.
Specifically, the vibration sensor acquires vibration data of the power transformer under abnormal working conditions, carries out spectrum analysis, extracts the odd-even harmonic ratio, the spectrum complexity and the high-frequency energy bit characteristic parameters of the power transformer, and combines the vibration amplitude parameter to realize effective judgment and early warning of the internal winding looseness, the iron core looseness and the discharge operation defects of the power transformer.
Specifically, during the use, the utility model discloses with high frequency partial discharge, iron core ground current, space noise and mechanical vibration synthesize early warning system for the power transformer of main detection mode, through high frequency sensor, leakage current sensor, noise sensor and vibration sensor carry out high frequency pulse to power transformer, electric current, noise and vibration detection, with the noise, vibrate, electric current and high frequency pulse data coupling and transmission to on-the-spot collection terminal, on-the-spot collection terminal shows on the spot and through appointed communication protocol, communication mode goes up to cloud platform or appointed backstage demonstration analysis.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A transformer electrical fault early warning system, comprising:
a power transformer as a detection object;
the coupling unit comprises a high-frequency sensor, a leakage current sensor, a noise sensor and a vibration sensor, the coupling unit is electrically connected with the power transformer, and high-frequency pulse, current, noise and vibration detection is carried out on the power transformer through the high-frequency sensor, the leakage current sensor, the noise sensor and the vibration sensor;
the field acquisition terminal is electrically connected with the coupling unit, couples and transmits the acquired data to the field acquisition terminal through the coupling unit, and displays the data on site through the field acquisition terminal;
the communication unit is a wireless communication unit or a wired communication unit and is electrically connected with the field acquisition terminal;
the background is a cloud platform or a designated background, the background is electrically connected with the communication unit, and data acquired by the field acquisition terminal is uploaded to the background through the communication unit for display analysis.
2. The transformer electrical fault early warning system of claim 1, wherein: the high-frequency sensor has a multi-source separation technology, accurately separates the discharge signals, respectively diagnoses the separated discharge signals, and perfectly solves the problem that the type diagnosis is influenced by multi-source superposition.
3. The transformer electrical fault early warning system of claim 1, wherein: the leakage current sensor is based on a high-sensitivity zero-flux transformer and is used for detecting leakage current in milliampere level and leakage current in ampere level, so that full-range coverage of one sensor is realized.
4. The transformer electrical fault early warning system of claim 1, wherein: the noise sensor acquires sound data of the power transformer under abnormal working conditions, carries out spectrum analysis, extracts characteristic parameters of odd-even harmonic ratio, spectrum complexity and high-frequency energy, and combines sound pressure level parameters to realize effective discrimination and early warning of direct current magnetic biasing, harmonic load, accessory loosening, cooling device abrasion and discharge operation defects of the power transformer.
5. The transformer electrical fault early warning system of claim 1, wherein: the vibration sensor acquires vibration data of the power transformer under abnormal working conditions, carries out spectrum analysis, extracts characteristic parameters of odd-even harmonic ratio, spectrum complexity and high-frequency energy, and combines vibration amplitude parameters to realize effective judgment and early warning of internal winding looseness, iron core looseness and discharge operation defects of the power transformer.
6. The transformer electrical fault early warning system of claim 1, wherein: the wireless communication unit is 4G, WIFI or LoRa, and the wired communication unit is optic fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022144835.8U CN213337842U (en) | 2020-09-25 | 2020-09-25 | Transformer electrical fault early warning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022144835.8U CN213337842U (en) | 2020-09-25 | 2020-09-25 | Transformer electrical fault early warning system |
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| Publication Number | Publication Date |
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| CN213337842U true CN213337842U (en) | 2021-06-01 |
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| CN202022144835.8U Active CN213337842U (en) | 2020-09-25 | 2020-09-25 | Transformer electrical fault early warning system |
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| CN (1) | CN213337842U (en) |
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- 2020-09-25 CN CN202022144835.8U patent/CN213337842U/en active Active
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