CN115629278A - Switch cabinet insulation state detection device and method - Google Patents
Switch cabinet insulation state detection device and method Download PDFInfo
- Publication number
- CN115629278A CN115629278A CN202211151021.4A CN202211151021A CN115629278A CN 115629278 A CN115629278 A CN 115629278A CN 202211151021 A CN202211151021 A CN 202211151021A CN 115629278 A CN115629278 A CN 115629278A
- Authority
- CN
- China
- Prior art keywords
- switch cabinet
- data
- insulation state
- detection device
- state detection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
- G01R31/1209—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 using acoustic measurements
-
- 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
- G01R31/1218—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 using optical methods; using charged particle, e.g. electron, beams or X-rays
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a device and a method for detecting the insulation state of a switch cabinet, wherein the device comprises a synchronous pulse emitter, two sensor modules and a terminal, wherein the two sensor modules are electrically connected with the synchronous pulse emitter and used for receiving a synchronous pulse signal and acquiring an acoustic signal, an optical signal, an electric signal, a magnetic signal and gas concentration of the switch cabinet to be detected so as to generate acquired data, and the acquired data is acquired and processed through the terminal so as to generate detection data. The switch cabinet insulation state detection device and method provided by the invention realize comprehensive detection of sound, light, electricity, magnetic signals and gas all-factor discharge defects of the switch cabinet to be detected on the same time scale, and effectively improve the insulation state detection efficiency, accuracy and timeliness of the switch cabinet to be detected on the basis of reducing the workload of workers and the burden of the number of detection equipment.
Description
Technical Field
The invention relates to the technical field of switch cabinets, in particular to a switch cabinet insulation state detection device and method.
Background
The power supply reliability is the capability of a power supply system for continuously supplying power, is an important index for assessing the power quality of the power supply system, reflects the satisfaction degree of the power industry on the national economic power demand, becomes one of the standards for measuring the national economic development degree, and is important for social stability and economic development. The switch cabinet is used as an important unit in a power supply system, and a disconnecting switch, a circuit breaker and a related protection device are integrated in the switch cabinet and are mainly used for disconnecting and closing a normal power line and transmitting and switching operation loads. The switch cabinet can timely and effectively disconnect the circuit when the operating equipment and the circuit in the power supply system suddenly break down, thereby ensuring the safety of important equipment, and reliably grounding the equipment and the circuit which are withdrawn from operation, thereby ensuring the operation safety of workers. At present, the switch cabinet becomes the switch equipment with the largest application number and the widest application range.
However, limited by different working conditions, some switch cabinets work under severe working conditions such as high temperature, high voltage and humidity for a long time, and are easy to cause faults due to self insulation performance degradation. Research shows that faults generated in the switch cabinet are mainly insulation faults, detection equipment is generally required to be used for detecting and judging the faults of the switch cabinet, but in the prior art, the equipment for detecting the insulation state of the switch cabinet is independent from each other, the use workload of various detection equipment is large, the efficiency is low, the detection and judgment methods are single, detection limitation exists, technicians cannot accurately judge whether insulation defects exist in the switch cabinet through the obtained criterion of a single-property signal source, and the defect types and the defect positions cannot be accurately identified.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a switch cabinet insulation state detection device and method, and mainly aims to solve the technical problems that in the prior art, the switch cabinet insulation state detection method is single, detection equipment is independent, criteria are single, and detection efficiency and accuracy are low.
The invention provides a switch cabinet insulation state detection device on one hand, which comprises:
a synchronization pulse transmitter;
the first sensor module is electrically connected with the synchronous pulse emitter and is used for receiving the synchronous pulse signals emitted by the synchronous pulse emitter and acquiring the acoustic signals, the optical signals, the electric signals and the magnetic signals of the switch cabinet to be tested so as to generate first acquisition data;
the second sensor module is electrically connected with the synchronous pulse emitter and is used for receiving a synchronous pulse signal emitted by the synchronous pulse emitter and collecting the gas concentration of the switch cabinet to be tested so as to generate second collected data;
and the terminal is respectively electrically connected with the first sensor module and the second sensor module and is used for acquiring and processing the first acquisition data and the second acquisition data so as to generate detection data.
Optionally, the first sensor module includes a piezoelectric sensor, a fluorescent optical fiber sensor, a capacitive voltage divider, and a complementary dipole double patch antenna connected in parallel;
the piezoelectric sensor is used for collecting an acoustic signal of the switch cabinet to be tested;
the fluorescent optical fiber sensor is used for collecting optical signals of the switch cabinet to be tested;
the capacitive voltage divider is used for collecting an electric signal of the switch cabinet to be tested;
the complementary dipole double patch type antenna is used for acquiring a magnetic signal of the switch cabinet to be tested;
the piezoelectric sensor, the fluorescent optical fiber sensor, the capacitive voltage divider and the complementary dipole double patch type antenna are respectively and electrically connected with the synchronous pulse emitter and are used for synchronously receiving synchronous pulse signals emitted by the synchronous pulse emitter.
Optionally, peak value holders are disposed in the piezoelectric sensor, the fluorescent optical fiber sensor, the capacitive voltage divider, and the complementary dipole double patch antenna, and the peak value holders are used for performing frequency-down sampling on the switch cabinet to be tested.
Optionally, the insulation state detection device of the switch cabinet further includes an analog-to-digital converter, an input end of the analog-to-digital converter is electrically connected to the first sensor module, an output end of the analog-to-digital converter is electrically connected to the terminal, and the analog-to-digital converter is configured to convert the first collected data into a digital signal and transmit the digital signal to the terminal.
Optionally, the second sensor module includes an electrochemical sensor, and the electrochemical sensor is used for collecting the gas concentration of the switch cabinet to be tested.
Optionally, the terminal includes a data judgment module and an alarm module;
the data judgment module is used for receiving the detection data and judging the detection data based on a preset data range to obtain a judgment result, wherein the judgment result comprises data normality and data abnormity;
the alarm module is electrically connected with the data judgment module and is used for receiving an instruction of data abnormity and triggering an alarm.
Optionally, the switch cabinet insulation state detection device further comprises an industrial personal computer, and the industrial personal computer is electrically connected with the synchronous pulse emitter and used for setting detection time.
According to the insulation state detection device for the switch cabinet, the sensors for detecting different element indexes are integrated, the synchronous pulse signal is transmitted to the two sensor modules through the synchronous pulse transmitter, so that the multiple sensors under the two sensor modules can comprehensively detect sound, light, electricity and magnetic signals and gas all-element discharge defects of the switch cabinet to be detected under the same time scale, and finally, detection data are output through the terminal, and on the basis of reducing the workload and the number burden of detection equipment, the insulation state detection efficiency, accuracy and timeliness of the switch cabinet to be detected are effectively improved.
The invention provides a method for detecting the insulation state of a switch cabinet, which comprises the following steps:
arranging the switch cabinet insulation state detection device on the cabinet wall of the switch cabinet to be detected;
when a first sensor module in the switch cabinet insulation state detection device receives a synchronous pulse signal, acquiring an acoustic signal, an optical signal, an electric signal and a magnetic signal of the switch cabinet to be detected, and generating first acquisition data;
when a second sensor module in the switch cabinet insulation state detection device receives a synchronous pulse signal, collecting the gas concentration of the switch cabinet to be detected and generating second collected data;
and receiving and processing the first collected data and the second collected data by using a terminal in the switch cabinet insulation state detection device, and generating detection data.
Optionally, before the device for detecting the insulation state of the switchgear is disposed on the cabinet wall of the switchgear to be tested, the method further includes:
and checking the switch cabinet insulation state detection device, confirming that the connection state of the first sensor module and the second sensor module is normal, and setting the detection time of the switch cabinet insulation state detection device.
Optionally, after the receiving and processing the first collected data and the second collected data by using the terminal in the insulation state detection device of the switch cabinet and generating the detection data, the method further includes:
judging the detection data based on a preset data range to obtain a judgment result;
if the judgment result indicates that the detection data is out of the preset data range, the detection data is abnormal, and the terminal triggers an alarm;
if the judgment result indicates that the detection data are within the preset data range, the detection data are normal, and when a detection continuing instruction is responded, synchronous pulse signals are continuously sent to the first sensor module and the second sensor module to detect the switch cabinet to be detected.
The switch cabinet insulation state detection method provided by the invention aims at the difference of sound, light, electricity, magnetism and gas in the sensitivity and timeliness of the insulation performance detection of the switch cabinet to be detected, utilizes detection equipment with various sensors with different functions to comprehensively detect the full-element discharge defect of the switch cabinet to be detected under the same time scale, and utilizes the terminal to synchronously process and analyze the acquired data, thereby effectively improving the detection efficiency and accuracy of the insulation performance defect of the switch cabinet.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a switch cabinet insulation state detection device according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a method for detecting an insulation state of a switchgear according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a method for detecting an insulation state of a switchgear according to an embodiment of the present invention.
1. A synchronization pulse transmitter; 2. a first sensor module; 3. a second sensor module; 4. a terminal; 5. an analog-to-digital converter; 6. and an industrial personal computer.
Detailed Description
The present invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In one embodiment, the invention provides a switch cabinet insulation state detection device, which comprises a synchronous pulse emitter 1, a first sensor module 2, a second sensor module 3 and a terminal 4; the first sensor module 2 is electrically connected with the synchronous pulse emitter 1 and is used for receiving the synchronous pulse signals emitted by the synchronous pulse emitter 1 and acquiring the acoustic signals, the optical signals, the electric signals and the magnetic signals of the switch cabinet to be tested so as to generate first acquisition data; the second sensor module 3 is electrically connected with the synchronous pulse emitter 1 and is used for receiving a synchronous pulse signal emitted by the synchronous pulse emitter 1 and collecting the gas concentration of the switch cabinet to be detected so as to generate second collected data; the terminal 4 is electrically connected to the first sensor module 2 and the second sensor module 3, respectively, and is configured to acquire and process the first collected data and the second collected data to generate the detection data.
According to the insulation state detection device for the switch cabinet, the sensors for detecting different element indexes are integrated, the synchronous pulse emitter 1 emits synchronous pulse signals to the two sensor modules, so that the multiple sensors under the two sensor modules can comprehensively detect the discharge defects of sound, light, electricity, magnetism and all elements of the switch cabinet to be detected under the same time scale, and finally the detection data are output through the terminal 4, so that the insulation state detection efficiency, the accuracy and the timeliness of the switch cabinet to be detected are effectively improved on the basis of reducing the workload of workers and the number of detection devices.
Further, the first sensor module 2 includes a piezoelectric sensor, a fluorescent optical fiber sensor, a capacitive voltage divider and a complementary dipole dual patch type antenna connected in parallel; the piezoelectric sensor is used for collecting an acoustic signal of the switch cabinet to be tested; the fluorescent optical fiber sensor is used for collecting optical signals of the switch cabinet to be tested; the capacitive voltage divider is used for acquiring an electric signal of the switch cabinet to be tested; the complementary dipole double-patch antenna is used for acquiring a magnetic signal of the switch cabinet to be tested; the piezoelectric sensor, the fluorescent optical fiber sensor, the capacitive voltage divider and the complementary dipole double patch type antenna are respectively and electrically connected with the synchronous pulse transmitter 1 and used for synchronously receiving synchronous pulse signals transmitted by the synchronous pulse transmitter 1.
In the present embodiment, the sensing element of the piezoelectric sensor is made of a piezoelectric material, and when the piezoelectric material is stressed, the surface of the piezoelectric material generates charges, and the charges are amplified by the charge amplifier and the measuring circuit and converted into impedance, and then the charges can output electric quantity output in proportion to the external force. Piezoelectric sensors are often used for measuring force and converting energy into electrical non-electrical physical quantities, and have the advantages of wide frequency band, high sensitivity, high signal-to-noise ratio, simple structure, reliable operation, light weight and the like; the fluorescent optical fiber sensor has the characteristics of strong signal receiving capacity, small light scattering loss, low environmental sensitivity, strong anti-interference capacity and good insulating property, and changes fluorescent effect parameters by sensing temperature change; compared with a resistance voltage divider, the capacitive voltage divider has the characteristics of high compressive strength and difficulty in breakdown and is commonly used for measuring alternating-current high voltage; the complementary dipole double patch type antenna is composed of a pair of symmetrically placed conductors, and two ends of the conductors close to each other are respectively connected with the feeder line and used for transmitting and receiving signals with fixed frequency. In the present application, the piezoelectric sensor is specifically a PZT sensor, which is used for acquiring an acoustic signal, in the present application, ultrasonic waves are used, and the working frequency of the PZT sensor is 20kHz to 1MHz; the capacitive voltage divider is used for acquiring an electric signal, namely a transient voltage to ground in the application, and the working frequency of the capacitive voltage divider is 1MHz-50MHz or 20-400kHz; the complementary dipole double-patch antenna is used for acquiring ultrahigh frequency in magnetic signals, and the working frequency of the complementary dipole double-patch antenna is 300MHz-1500MHz; the fluorescence optical fiber sensor is of an enhanced type and is used for collecting optical pulse signals, the response wavelength range of the fluorescence optical fiber sensor is 250nm-280nm, synchronous combined measurement of various signals of the switch cabinet to be detected is achieved through integrated and modularized design of the first sensor module 2, and detection efficiency and detection accuracy are improved.
Furthermore, peak value holders are arranged in the piezoelectric sensor, the fluorescent optical fiber sensor, the capacitive voltage divider and the complementary dipole double-patch type antenna and are used for realizing frequency reduction sampling of the switch cabinet to be tested. In this embodiment, the peak value keeper is widely used in the automatic gain control circuit and the sensor maximum value obtaining circuit, and has the function of extracting the peak value of the input signal and keeping the output value of the circuit unchanged until a new larger peak value appears or the circuit is reset. In particular, in the present application, the down-sampling of the sensors is achieved by providing a peak-holder in each sensor, the holding time of the peak-holder being 1 μ s.
Specifically, in the above embodiment, the insulation state detection apparatus further includes an analog-to-digital converter 5, an input end of the analog-to-digital converter 5 is electrically connected to the first sensor module 2, an output end of the analog-to-digital converter 5 is electrically connected to the terminal 4, and the analog-to-digital converter 5 is configured to transmit the first collected data to the terminal 4 by converting an analog signal into a digital signal. In the present embodiment, the analog-to-digital converter 5 is a circuit that converts an analog signal into a digital signal, and functions to convert an analog quantity continuous in both time and amplitude into a digital signal discrete in both time and amplitude. Specifically, in the present application, after the first sensor module 2 and the second sensor module 3 realize the collection of multiple element signals, the analog-to-digital converter 5 with a sampling rate of 20MS/s is used to transmit the collected data to the terminal 4 for processing.
Further, the second sensor module 3 includes an electrochemical sensor, and the electrochemical sensor is used for acquiring the gas concentration of the switch cabinet to be measured. In the present embodiment, the electrochemical sensor is manufactured based on ion conduction, and may be classified into a potential sensor, an electrical conductivity sensor, an electrical quantity sensor, a polarographic sensor, an electrolytic sensor, and the like according to the formation of electrical characteristics thereof, and specifically, the electrochemical sensor is mainly used for analyzing parameters such as gas, liquid, solid components dissolved in liquid, and ph, electrical conductivity, oxidation-reduction potential, and the like of the liquid. Specifically, in the application, the measurement range of the electrochemical sensor is 0-1000 ppm, the gas concentrations of CO, NO2 and O3 in the environment where the switch cabinet to be detected is located can be effectively detected, the insulation state of the switch cabinet to be detected is further judged according to the gas dimension, and because the electrochemical detection method is not interfered by gas and has strong anti-interference capability, the electrochemical sensor receives a synchronous signal transmitted by the synchronous pulse transmitter 1, and a probe in the electrochemical sensor starts to complete information acquisition work of the gas concentrations of CO, NO2 and O3 in a single time.
Specifically, in the above embodiment, the terminal 4 includes a data determining module and an alarm module; the data judgment module is used for receiving the detection data and judging the detection data based on a preset data range to obtain a judgment result, wherein the judgment result comprises data normality and data abnormality; the alarm module is electrically connected with the data judgment module and is used for receiving the data abnormal instruction and triggering alarm, and the alarm time is less than 50ms. In this embodiment, the switch cabinet is in an insulating state, the numerical values of each element have a preset data range, the preset data range can be manually set before detection, the terminal 4 acquires the first acquired data and the second acquired data and processes the acquired data, the data acquired by each sensor is compared with the preset data range to generate a judgment result, specifically, when all the acquired numerical values are in the preset data range, the detection data are normal, which indicates that the switch cabinet to be detected is in an insulating state, and the acquired numerical values are outside the preset data range, which indicates that the switch cabinet to be detected is in an abnormal state, and generates a detection data abnormal instruction, which is transmitted to the data judgment module to trigger an alarm to remind a worker to timely maintain the switch cabinet.
Specifically, in the above embodiment, the insulation state detection device of the switch cabinet further includes an industrial personal computer 6, and the industrial personal computer 6 is electrically connected with the synchronization pulse emitter 1 for setting the detection time. In this embodiment, the industrial personal computer 6 is an industrial control computer, and is mainly used for performing self-inspection on the switch cabinet insulation state detection device before detecting the switch cabinet to be detected, the functions of the detection mainly include initialization time, connection condition of each sensor in the two sensor modules, test time delay and the like, and single detection time is set by the synchronous pulse emitter 1.
In another aspect, the present invention provides a method for detecting an insulation state of a switchgear, as shown in fig. 1 and fig. 2, firstly, any one of the above-mentioned switchgear insulation state detection apparatuses is disposed on a cabinet wall of a switchgear to be detected, when a first sensor module 2 in the switchgear insulation state detection apparatus receives a synchronous pulse signal, an acoustic signal, an optical signal, an electrical signal, and a magnetic signal of the switchgear to be detected are collected, and first collected data are generated, and when a second sensor module 3 in the switchgear insulation state detection apparatus receives the synchronous pulse signal, a gas concentration of the switchgear to be detected is collected, and second collected data are generated, and finally, a terminal 4 in the switchgear insulation state detection apparatus is used to receive and process the first collected data and the second collected data, and generate detected data.
The insulation state detection method of the switch cabinet provided by the invention aims at the difference of the sound, light, electricity, magnetism and gas in the sensitivity and timeliness of the insulation performance detection of the switch cabinet to be detected, utilizes the detection equipment with various sensors with different functions to comprehensively detect the full-element discharge defect of the switch cabinet to be detected under the same time scale, and utilizes the terminal 4 to synchronously process and analyze the acquired data, thereby effectively improving the detection efficiency and accuracy of the insulation performance defect of the switch cabinet.
Further, before the switch cabinet insulation state detection device is arranged on the cabinet wall of the switch cabinet to be detected, the switch cabinet insulation state detection device is checked, the connection state of the first sensor module 2 and the second sensor module 3 is confirmed to be normal, and the detection time of the switch cabinet insulation state detection device is set. In this embodiment, the switch cabinet insulation state detection device is provided with the industrial personal computer 6, which is mainly used for performing self-checking on the switch cabinet insulation state detection device before detecting a switch cabinet to be detected, initializing time, confirming connection conditions of each sensor in the first sensor module 2 and the second sensor module 3, testing time delay and the like, and setting single detection time through the synchronous pulse emitter 1 to ensure detection accuracy.
Specifically, in the above embodiment, after the terminal 4 in the insulation state detection device of the switch cabinet is used to receive and process the first collected data and the second collected data and generate the detection data, the detection data is judged based on the preset data range to obtain the judgment result; if the judgment result indicates that the detection data is out of the preset data range, detecting that the data is abnormal, and triggering an alarm by the terminal 4; if the judgment result indicates that the detection data are within the preset data range, the detection data are normal, and when the detection data respond to a continuous detection instruction, synchronous pulse signals are continuously sent to the first sensor module 2 and the second sensor module 3 to detect the switch cabinet to be detected. In the embodiment, the terminal 4 is used for acquiring and processing the first acquired data and the second acquired data, comparing the data acquired by each sensor with a preset data range to generate a judgment result, if the acquired value is out of the preset data range, detecting data abnormity, indicating that the switch cabinet to be detected is in an abnormal state, generating a detection data abnormity instruction, and transmitting the detection data abnormity instruction to the data judgment module to trigger an alarm to remind a worker to maintain the switch cabinet in time, so that the switch cabinet in the abnormal state is prevented from influencing operation safety; and when all the acquired values are within the preset data range, the detection data are normal, in order to ensure that the switch cabinet is in a real insulation state, a continuous detection instruction can be sent, synchronous pulse signals are continuously sent to the first sensor module 2 and the second sensor module 3 to detect the switch cabinet to be detected, the detection process is repeated, detection results under multiple time scales are obtained, the switch cabinet is ensured to be in an absolute safety state, an analog counter is introduced to record and count the number of times of the test during the detection process, and the whole measurement process can be directly finished after one detection is completed to obtain the measurement result.
The specific principle of the insulation state detection method of the switch cabinet provided by the invention is shown in fig. 3.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides a cubical switchboard insulating state detection device which characterized in that includes:
a synchronization pulse transmitter (1);
the first sensor module (2) is electrically connected with the synchronous pulse emitter (1) and is used for receiving a synchronous pulse signal emitted by the synchronous pulse emitter (1) and acquiring an acoustic signal, an optical signal, an electric signal and a magnetic signal of a switch cabinet to be tested so as to generate first acquisition data;
the second sensor module (3) is electrically connected with the synchronous pulse emitter (1) and is used for receiving a synchronous pulse signal emitted by the synchronous pulse emitter (1) and collecting the gas concentration of the switch cabinet to be detected so as to generate second collected data;
the terminal (4) is electrically connected with the first sensor module (2) and the second sensor module (3) respectively and is used for acquiring and processing the first collected data and the second collected data so as to generate detection data.
2. The switchgear cabinet insulation state detection device according to claim 1, wherein the first sensor module (2) comprises a piezoelectric sensor, a fluorescent optical fiber sensor, a capacitive voltage divider and a complementary dipole double patch type antenna connected in parallel;
the piezoelectric sensor is used for acquiring an acoustic signal of the switch cabinet to be tested;
the fluorescent optical fiber sensor is used for collecting optical signals of the switch cabinet to be tested;
the capacitive voltage divider is used for collecting an electric signal of the switch cabinet to be tested;
the complementary dipole double patch type antenna is used for acquiring a magnetic signal of the switch cabinet to be tested;
the piezoelectric sensor, the fluorescent optical fiber sensor, the capacitive voltage divider and the complementary dipole double patch type antenna are respectively and electrically connected with the synchronous pulse emitter (1) and used for synchronously receiving synchronous pulse signals emitted by the synchronous pulse emitter (1).
3. The insulation state detection device of claim 2, wherein a peak value holder is disposed in each of the piezoelectric sensor, the fluorescent optical fiber sensor, the capacitive voltage divider and the complementary dipole two-patch type antenna, and the peak value holder is used for performing down-sampling on the switch cabinet to be tested.
4. The switchgear cabinet insulation state detection device according to claim 2, characterized in that the switchgear cabinet insulation state detection device further comprises an analog-to-digital converter (5), wherein an input end of the analog-to-digital converter (5) is electrically connected with the first sensor module (2), an output end of the analog-to-digital converter (5) is electrically connected with the terminal (4), and the analog-to-digital converter (5) is used for transmitting the first collected data to the terminal (4) by converting analog signals into digital signals.
5. The switchgear cabinet insulation state detection device according to claim 1, characterized in that the second sensor module (3) comprises an electrochemical sensor for collecting the gas concentration of the switchgear cabinet under test.
6. The switchgear cabinet insulation state detection device according to claim 1, wherein the terminal (4) comprises a data judgment module and an alarm module;
the data judgment module is used for receiving the detection data and judging the detection data based on a preset data range to obtain a judgment result, wherein the judgment result comprises data normality and data abnormity;
the alarm module is electrically connected with the data judgment module and is used for receiving the data abnormal instruction and triggering an alarm.
7. The switch cabinet insulation state detection device according to claim 1, further comprising an industrial personal computer (6), wherein the industrial personal computer (6) is electrically connected with the synchronous pulse emitter (1) and used for setting detection time.
8. A method for detecting the insulation state of a switch cabinet is characterized by comprising the following steps:
arranging the switch cabinet insulation state detection device as claimed in any one of claims 1 to 7 on a cabinet wall of a switch cabinet to be tested;
when a first sensor module (2) in the switch cabinet insulation state detection device receives a synchronous pulse signal, acquiring an acoustic signal, an optical signal, an electric signal and a magnetic signal of the switch cabinet to be detected, and generating first acquisition data;
when a second sensor module (3) in the switch cabinet insulation state detection device receives a synchronous pulse signal, collecting the gas concentration of the switch cabinet to be detected and generating second collected data;
and receiving and processing the first collected data and the second collected data by using a terminal (4) in the switch cabinet insulation state detection device, and generating detection data.
9. The method according to claim 8, wherein before the arranging of the switchgear insulation state detection device on a cabinet wall of a switchgear to be tested, the method further comprises:
and checking the switch cabinet insulation state detection device, confirming that the connection state of the first sensor module (2) and the second sensor module (3) is normal, and setting the detection time of the switch cabinet insulation state detection device.
10. The method according to claim 8, characterized in that after receiving and processing the first and second collected data and generating detection data with a terminal (4) in the switchgear insulation state detection device, the method further comprises:
judging the detection data based on a preset data range to obtain a judgment result;
if the judgment result indicates that the detection data is out of the preset data range, the detection data is abnormal, and the terminal (4) triggers an alarm;
if the judgment result indicates that the detection data are within the preset data range, the detection data are normal, and when a detection continuing instruction is responded, synchronous pulse signals are sent to the first sensor module (2) and the second sensor module (3) to continue to detect the switch cabinet to be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211151021.4A CN115629278A (en) | 2022-09-21 | 2022-09-21 | Switch cabinet insulation state detection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211151021.4A CN115629278A (en) | 2022-09-21 | 2022-09-21 | Switch cabinet insulation state detection device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115629278A true CN115629278A (en) | 2023-01-20 |
Family
ID=84903636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211151021.4A Pending CN115629278A (en) | 2022-09-21 | 2022-09-21 | Switch cabinet insulation state detection device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115629278A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117110818A (en) * | 2023-10-25 | 2023-11-24 | 江苏沙洲电气有限公司 | Novel high-voltage switch cabinet partial discharge detection method and system |
-
2022
- 2022-09-21 CN CN202211151021.4A patent/CN115629278A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117110818A (en) * | 2023-10-25 | 2023-11-24 | 江苏沙洲电气有限公司 | Novel high-voltage switch cabinet partial discharge detection method and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108414908B (en) | Cathode protection insulation tester and testing method thereof | |
| CN101887110A (en) | Device and method for detecting insulating oil dielectric strength tester | |
| CN210346899U (en) | Mechanical vibration abnormal state detection device for gas insulated metal enclosed switchgear | |
| CN110873604A (en) | Transformer noise vibration on-line monitoring system | |
| CN115629278A (en) | Switch cabinet insulation state detection device and method | |
| CN111025006B (en) | Non-contact voltage detection and phase recognition device | |
| CN104459490A (en) | Ultrasonic wave analysis device and system for GIS breakdown positioning in electric system | |
| CN209045711U (en) | Battery operating temperature monitoring device, battery and power supply box based on thermocouple | |
| CN107884737A (en) | The live capacitive apparatus on-line monitoring check system and method for wireless high-precise synchronization | |
| CN201965224U (en) | Automatic school system that examines of proof voltage instrument | |
| CN104390907A (en) | Four-electrode soil corrosion detection probe | |
| CN207779463U (en) | A kind of intellectual monitoring module of ring main unit | |
| CN101303381B (en) | Systems, methods, and apparatus for measuring capacitance in stator component | |
| CN106093716A (en) | Partial discharge detection device for electrical equipment | |
| CN114509671B (en) | GIS equipment contact state and load condition judgment method and system | |
| CN216900776U (en) | Digital partial discharge tester | |
| CN109298378A (en) | A kind of automatic calibration of electric energy meter system multifunctional detection method and device | |
| CN208607313U (en) | A kind of signal-testing apparatus based on logarithmic detector | |
| CN211123037U (en) | Lightning protection ground resistance detecting system | |
| CN211262470U (en) | Transformer noise vibration on-line monitoring system | |
| CN113820536A (en) | Zinc oxide arrester live-line detection method based on wireless synchronous current measurement technology | |
| CN114740292A (en) | Lightning arrester operation state assessment method | |
| CN207336435U (en) | A kind of transformer oil detector with humiture monitoring device | |
| CN110160634A (en) | Reactor abnormal sound measuring device and its method | |
| CN218584947U (en) | High-speed sampling device for relay action process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |