CN116125230A - Porcelain insulator inner insulation detection method and detection equipment thereof - Google Patents
Porcelain insulator inner insulation detection method and detection equipment thereof Download PDFInfo
- Publication number
- CN116125230A CN116125230A CN202310011496.1A CN202310011496A CN116125230A CN 116125230 A CN116125230 A CN 116125230A CN 202310011496 A CN202310011496 A CN 202310011496A CN 116125230 A CN116125230 A CN 116125230A
- Authority
- CN
- China
- Prior art keywords
- porcelain insulator
- voltage
- tested
- time constant
- acquiring
- 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
- G01R31/1227—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 of components, parts or materials
- G01R31/1245—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 of components, parts or materials of line insulators or spacers, e.g. ceramic overhead line cap insulators; of insulators in HV bushings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/12—Measuring rate of change
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters
-
- 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
- G01R31/14—Circuits therefor, e.g. for generating test voltages, sensing circuits
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a porcelain insulator inner insulation detection method and detection equipment thereof, and relates to the technical field of porcelain insulator detection, wherein the detection method comprises the steps of S1, measuring voltage change; s2, determining a voltage amplitude: acquiring a first voltage amplitude value and a first decay time constant corresponding to a normal porcelain insulator and a second voltage amplitude value and a second decay time constant corresponding to a porcelain insulator to be tested according to the voltage change waveform data; s3, obtaining insulation resistance: acquiring the insulation resistance of the porcelain insulator to be tested according to the first attenuation time constant and the second attenuation time constant; s4, judging. According to the invention, whether the measured porcelain insulator is deteriorated or not is judged according to whether the porcelain insulator breaks down under the instant high voltage and the voltage change characteristic of the porcelain insulator after the voltage is applied, the accuracy is high, the porcelain insulator with deteriorated internal insulation can be rapidly detected, and the state information can be wirelessly transmitted through the alarm lamp and the data transmission module.
Description
Technical Field
The invention relates to the technical field of porcelain insulator detection, in particular to a porcelain insulator inner insulation detection method and detection equipment thereof.
Background
With the development of industry, electric power is becoming an important guarantee of industry development, reliable external insulation is indispensable in electric power transmission, and porcelain insulators are important guarantees of achieving reliable external insulation. Among porcelain insulators, porcelain insulators are one of the most widely used types, the porcelain insulators are low in manufacturing cost, good in weather resistance and not prone to aging, application advantages are remarkable, therefore the porcelain insulators are widely used in power transmission lines, various in forms, such as disc porcelain insulators and tension porcelain insulators, but the porcelain insulators also have a remarkable defect in the application process, namely inner insulation degradation is easy to occur, once the porcelain insulators are degraded in inner insulation, the insulation resistance of the porcelain insulators is remarkably reduced, the power transmission safety is directly affected, the degraded porcelain insulators are one of important matters of inspection work of the power transmission lines, after the power transmission lines are put into operation for a period of time, maintenance staff are required to be regularly arranged to detect the performance of the power transmission lines, at present, most areas in China are the traditional mode of ascending the electric detection of the maintenance staff, namely, after the electric detection is carried by the operator to the scene, the insulator is detected by a measuring instrument, the operation state of a tower is detected, the operation state of all insulators is remarkably reduced, the operation of the insulators is detected by the operator, the condition of the poor insulator is greatly influenced, and the work efficiency of the work is greatly reduced, and the work is not damaged by the detection of the insulator is greatly in the field, and the condition of the work is detected is greatly damaged. The following problems exist in the prior art:
1. the existing porcelain insulator internal insulation detection method and detection equipment thereof have low accuracy and are inconvenient for rapidly detecting the porcelain insulator with internal insulation degradation;
2. the existing porcelain insulator inner insulation detection method and detection equipment thereof do not have the function of wireless data transmission, and the efficiency is lower during maintenance.
Disclosure of Invention
In order to solve the technical problems, the invention adopts the following technical scheme:
a method for detecting the internal insulation of porcelain insulator and its detection equipment are disclosed,
s1, measuring voltage change: respectively transmitting impulse voltage to the normal porcelain insulator and the porcelain insulator to be tested through an impulse voltage generator, and acquiring voltage change waveform data of the normal porcelain insulator and the porcelain insulator to be tested by utilizing a measuring loop;
s2, determining a voltage amplitude: acquiring a first voltage amplitude value and a first decay time constant corresponding to a normal porcelain insulator and a second voltage amplitude value and a second decay time constant corresponding to a porcelain insulator to be tested according to the voltage change waveform data;
s3, obtaining insulation resistance: acquiring the insulation resistance of the porcelain insulator to be tested according to the first attenuation time constant and the second attenuation time constant;
s4, judging: judging whether the porcelain insulator to be tested is a deteriorated porcelain insulator according to the magnitudes of the first voltage amplitude and the second voltage amplitude or the magnitude of the insulation resistance of the normal porcelain insulator and the insulation resistance of the porcelain insulator to be tested.
The technical scheme of the invention is further improved as follows: the S1 measuring loop comprises a high-voltage probe and a waveform sampling circuit, wherein the waveform sampling circuit is connected with two ends of a normal porcelain insulator and a porcelain insulator to be measured through the high-voltage probe.
The technical scheme of the invention is further improved as follows: s2, removing burrs in the voltage variation waveform data in a low-pass filtering mode.
The technical scheme of the invention is further improved as follows: acquiring a voltage sequence and a time sequence corresponding to the voltage sequence according to the voltage variation waveform data of the normal porcelain insulator, and acquiring a first voltage amplitude and a first decay time constant through the voltage sequence and the time sequence; and acquiring a voltage sequence of the porcelain insulator to be tested and a time sequence corresponding to the voltage sequence according to the voltage change waveform data of the porcelain insulator to be tested, and acquiring a second voltage amplitude and a second decay time constant through the voltage sequence and the time sequence.
The technical scheme of the invention is further improved as follows: s4, judging whether the second voltage amplitude is smaller than the product of the first voltage amplitude and a preset threshold value or whether the insulation resistance of the porcelain insulator to be tested is smaller than the insulation resistance of a normal porcelain insulator; if yes, determining the porcelain insulator to be detected as a deteriorated porcelain insulator; if not, determining the porcelain insulator to be tested as a qualified porcelain insulator.
The utility model provides an insulator internal insulation check out test set, includes the main part, the bottom of main part is provided with fixed subassembly, fixed subassembly includes the detector, the top fixedly connected with mount pad of detector, the outside fixedly connected with of mount pad consolidates the seat, the one end rotation of consolidating the seat is connected with the rotation hinge, the other end threaded connection who consolidates the seat has fixing bolt, the bottom threaded connection of detector has mounting bolt, the bottom fixed mounting of detector has the alarm lamp.
The technical scheme of the invention is further improved as follows: the inside of detector is provided with detection subassembly, detection subassembly includes the backup pad.
The technical scheme of the invention is further improved as follows: the front fixedly connected with mount of backup pad, the front threaded connection of mount has connecting bolt.
The technical scheme of the invention is further improved as follows: the inside fixedly connected with circuit board of mount, the positive fixed mounting of circuit board has detection module, the positive fixedly connected with data transmission module of circuit board, the top fixedly connected with installation pole of main part.
By adopting the technical scheme, compared with the prior art, the invention has the following technical progress:
1. according to the method, under the action of voltage change measurement, impulse voltage is sent to a normal porcelain insulator and a porcelain insulator to be tested through an impulse voltage generator respectively, voltage change waveform data of the normal porcelain insulator and the porcelain insulator to be tested are obtained through a measurement loop, and whether the measured porcelain insulator is deteriorated or not is judged according to whether breakdown of the porcelain insulator occurs under the instant impulse high voltage and the voltage change characteristic of the porcelain insulator after the voltage is applied, so that accuracy is high, and the porcelain insulator with deteriorated internal insulation can be rapidly detected.
2. The invention provides a porcelain insulator internal insulation detection method, which is characterized in that under the action of a measurement loop, the measurement loop comprises a high-voltage probe and a waveform sampling circuit, the waveform sampling circuit is connected with both ends of a normal porcelain insulator and a porcelain insulator to be detected through the high-voltage probe, the pressurizing time is short, the power is low, the energy consumption is low, the working efficiency is high, the judgment logic is simple and convenient to integrate, the detection equipment is convenient to miniaturize, and the application place is wide.
3. The invention provides a porcelain insulator inner insulation detection device, which is characterized in that under the combined action of a mounting seat and a reinforcing seat, the mounting seat is fixedly arranged at the bottom of a main body, so that a detector can be conveniently installed, the detector can detect the running state and damage condition of a porcelain insulator body at any time, the reinforcing seat is fixedly arranged outside the mounting seat, and the mounting seat is fixed through a fixing bolt, so that the stability of the mounting seat in the fixing process can be improved, and the shaking damage is prevented.
4. The invention provides an internal insulation detection device for a porcelain insulator, which is characterized in that under the combined action of an alarm lamp and a data transmission module, the alarm lamp is fixedly arranged at the bottom of a detector, and the data transmission module is fixedly connected to the front surface of a circuit board, so that state information can be wirelessly transmitted through the alarm lamp and the data transmission module, and therefore, components to be overhauled can be determined under the condition of no ascending, and the working efficiency is improved and the risk of overhead operation is reduced.
Drawings
FIG. 1 is a schematic flow chart of a method for detecting insulation in a porcelain insulator according to the present invention;
FIG. 2 is a schematic flow chart of S2 of the present invention;
FIG. 3 is a schematic diagram showing the overall structure of an insulator inner insulation detection device according to the present invention;
FIG. 4 is a schematic structural view of a fixing assembly according to the present invention;
fig. 5 is a schematic structural diagram of a detection assembly according to the present invention.
In the figure: 1. a main body; 2. a fixing assembly; 21. a detector; 22. a mounting base; 23. a reinforcing seat; 24. a fixing bolt; 25. a rotating hinge; 26. installing a bolt; 27. an alarm lamp; 3. a detection assembly; 31. a support plate; 32. a circuit board; 33. a connecting bolt; 34. a detection module; 35. a data transmission module; 36. a fixing frame; 4. and (5) mounting a rod.
Detailed Description
The invention is further illustrated by the following examples:
example 1
As shown in fig. 1 to 5, the present invention provides a porcelain insulator inner insulation detection method and detection equipment thereof, comprising the steps of,
s1, measuring voltage change: respectively transmitting impulse voltage to the normal porcelain insulator and the porcelain insulator to be tested through an impulse voltage generator, and acquiring voltage change waveform data of the normal porcelain insulator and the porcelain insulator to be tested by utilizing a measuring loop;
s2, determining a voltage amplitude: acquiring a first voltage amplitude value and a first decay time constant corresponding to a normal porcelain insulator and a second voltage amplitude value and a second decay time constant corresponding to a porcelain insulator to be tested according to the voltage change waveform data;
s3, obtaining insulation resistance: acquiring the insulation resistance of the porcelain insulator to be tested according to the first attenuation time constant and the second attenuation time constant;
s4, judging: judging whether the porcelain insulator to be tested is a deteriorated porcelain insulator according to the magnitudes of the first voltage amplitude and the second voltage amplitude or the magnitude of the insulation resistance of the normal porcelain insulator and the insulation resistance of the porcelain insulator to be tested.
In the embodiment, whether the measured porcelain insulator is deteriorated or not is judged according to whether the porcelain insulator breaks down under the instant impact high voltage and the voltage change characteristic of the porcelain insulator after the voltage is applied, so that the accuracy is high, and the porcelain insulator with deteriorated internal insulation can be rapidly detected.
Example 2
As shown in fig. 1-5, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the S1 measuring loop comprises a high-voltage probe and a waveform sampling circuit, the waveform sampling circuit is connected with both ends of a normal porcelain insulator and a porcelain insulator to be measured through the high-voltage probe, S2 removes burrs in voltage change waveform data in a low-pass filtering mode, a voltage sequence and a time sequence corresponding to the voltage sequence are obtained according to the voltage change waveform data of the normal porcelain insulator, and a first voltage amplitude and a first attenuation time constant are obtained through the voltage sequence and the time sequence; acquiring a voltage sequence of the porcelain insulator to be tested and a time sequence corresponding to the voltage sequence according to the voltage change waveform data of the porcelain insulator to be tested, acquiring a second voltage amplitude and a second attenuation time constant through the voltage sequence and the time sequence, and S4 judging whether the second voltage amplitude is smaller than the product of the first voltage amplitude and a preset threshold value or whether the insulation resistance of the porcelain insulator to be tested is smaller than the insulation resistance of a normal porcelain insulator; if yes, determining the porcelain insulator to be detected as a deteriorated porcelain insulator; if not, determining the porcelain insulator to be tested as a qualified porcelain insulator.
In the embodiment, the waveform sampling circuit is connected with the normal porcelain insulator and the two ends of the porcelain insulator to be tested through the high-voltage probe, the pressurizing time is short, the power is low, the energy consumption is low, the working efficiency is high, the judgment logic is simple and convenient to integrate, the detection equipment is convenient to miniaturize, and the application place is wide.
Example 3
As shown in fig. 1-5, the invention provides a porcelain insulator inner insulation detection device, which comprises a main body 1, wherein a fixing component 2 is arranged at the bottom of the main body 1, the fixing component 2 comprises a detector 21, the top of the detector 21 is fixedly connected with a mounting seat 22, the outside of the mounting seat 22 is fixedly connected with a reinforcing seat 23, one end of the reinforcing seat 23 is rotatably connected with a rotating hinge 25, the other end of the reinforcing seat 23 is in threaded connection with a fixing bolt 24, the bottom of the detector 21 is in threaded connection with a mounting bolt 26, an alarm lamp 27 is fixedly arranged at the bottom of the detector 21, a detection component 3 is arranged in the detector 21, the detection component 3 comprises a supporting plate 31, the front of the supporting plate 31 is fixedly connected with a fixing frame 36, the front of the fixing frame 36 is in threaded connection with a connecting bolt 33, the inside of the fixing frame 36 is fixedly connected with a circuit board 32, the front of the circuit board 32 is fixedly connected with a detection module 34, the front of the circuit board 32 is fixedly connected with a data transmission module 35, and the top of the main body 1 is fixedly connected with a mounting rod 4.
In this embodiment, the status information is wirelessly transmitted through the alarm lamp 27 and the data transmission module 35, so that the components to be overhauled can be determined without ascending, thereby improving the working efficiency and reducing the risk of overhead operation.
The following specifically describes the working principle of the method and the device for detecting the internal insulation of the porcelain insulator.
As shown in fig. 1 to 5, impulse voltage is sent to a normal porcelain insulator and a porcelain insulator to be tested respectively through an impulse voltage generator, voltage change waveform data of the normal porcelain insulator and the porcelain insulator to be tested are obtained through a measuring loop, a first voltage amplitude and a first attenuation time constant corresponding to the normal porcelain insulator and a second voltage amplitude and a second attenuation time constant corresponding to the porcelain insulator to be tested are obtained according to the voltage change waveform data, insulation resistance of the porcelain insulator to be tested is obtained according to the first attenuation time constant and the second attenuation time constant, whether the porcelain insulator to be tested is a deteriorated porcelain insulator or not is judged according to the magnitude of the first voltage amplitude and the second voltage amplitude or the magnitude of the insulation resistance of the normal porcelain insulator and the magnitude of the insulation resistance of the porcelain insulator to be tested, a mounting seat 22 is fixedly mounted at the bottom of a main body 1, so that the detector 21 can be conveniently mounted, the running state and the damage condition of the porcelain insulator body can be detected at any time, a reinforcing seat 23 is fixedly mounted at the outer part of the mounting seat 22 through a fixing bolt 24, stability of the mounting seat 22 can be improved, shaking and damage can be prevented, an alarm lamp 27 is fixedly mounted at the bottom of the mounting seat 21 and a data transmission module 35 can be fixedly mounted at the bottom of the mounting seat 22, and the data transmission module 35 can be fixedly mounted at the bottom of the mounting seat 35, and the data transmission module can be used for transmitting information in a high-speed and the condition can be wirelessly and the dangerous condition can be guaranteed through a high-level, and the wireless transmission module can be reliably and the dangerous condition can be improved.
The foregoing invention has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.
Claims (9)
1. The method for detecting the internal insulation of the porcelain insulator comprises the following steps of:
s1, measuring voltage change: respectively transmitting impulse voltage to the normal porcelain insulator and the porcelain insulator to be tested through an impulse voltage generator, and acquiring voltage change waveform data of the normal porcelain insulator and the porcelain insulator to be tested by utilizing a measuring loop;
s2, determining a voltage amplitude: acquiring a first voltage amplitude value and a first decay time constant corresponding to a normal porcelain insulator and a second voltage amplitude value and a second decay time constant corresponding to a porcelain insulator to be tested according to the voltage change waveform data;
s3, obtaining insulation resistance: acquiring the insulation resistance of the porcelain insulator to be tested according to the first attenuation time constant and the second attenuation time constant;
s4, judging: judging whether the porcelain insulator to be tested is a deteriorated porcelain insulator according to the magnitudes of the first voltage amplitude and the second voltage amplitude or the magnitude of the insulation resistance of the normal porcelain insulator and the insulation resistance of the porcelain insulator to be tested.
2. The porcelain insulator inner insulation detection method according to claim 1, wherein the method comprises the following steps: the S1 measuring loop comprises a high-voltage probe and a waveform sampling circuit, wherein the waveform sampling circuit is connected with two ends of a normal porcelain insulator and a porcelain insulator to be measured through the high-voltage probe.
3. The porcelain insulator inner insulation detection method according to claim 1, wherein the method comprises the following steps: s2, removing burrs in the voltage variation waveform data in a low-pass filtering mode.
4. The porcelain insulator inner insulation detection method according to claim 1, wherein the method comprises the following steps: acquiring a voltage sequence and a time sequence corresponding to the voltage sequence according to the voltage variation waveform data of the normal porcelain insulator, and acquiring a first voltage amplitude and a first decay time constant through the voltage sequence and the time sequence; and acquiring a voltage sequence of the porcelain insulator to be tested and a time sequence corresponding to the voltage sequence according to the voltage change waveform data of the porcelain insulator to be tested, and acquiring a second voltage amplitude and a second decay time constant through the voltage sequence and the time sequence.
5. The porcelain insulator inner insulation detection method according to claim 1, wherein the method comprises the following steps: s4, judging whether the second voltage amplitude is smaller than the product of the first voltage amplitude and a preset threshold value or whether the insulation resistance of the porcelain insulator to be tested is smaller than the insulation resistance of a normal porcelain insulator; if yes, determining the porcelain insulator to be detected as a deteriorated porcelain insulator; if not, determining the porcelain insulator to be tested as a qualified porcelain insulator.
6. Insulation check out test set in porcelain insulator, including main part (1), its characterized in that: the bottom of main part (1) is provided with fixed subassembly (2), fixed subassembly (2) are including detector (21), the top fixedly connected with mount pad (22) of detector (21), the outside fixedly connected with of mount pad (22) consolidates seat (23), the one end rotation of consolidate seat (23) is connected with rotation hinge (25), the other end threaded connection of consolidate seat (23) has fixing bolt (24), the bottom threaded connection of detector (21) has mounting bolt (26), the bottom fixed mounting of detector (21) has alarm lamp (27).
7. The porcelain insulator inner insulation detection apparatus as set forth in claim 6, wherein: the detector (21) is internally provided with a detection assembly (3), and the detection assembly (3) comprises a support plate (31).
8. The porcelain insulator inner insulation detection apparatus as set forth in claim 7, wherein: the front of backup pad (31) fixedly connected with mount (36), the front thread connection of mount (36) has connecting bolt (33).
9. The porcelain insulator inner insulation detection device according to claim 8, wherein: the inside fixedly connected with circuit board (32) of mount (36), the front fixed mounting of circuit board (32) has detection module (34), the front fixedly connected with data transmission module (35) of circuit board (32), the top fixedly connected with installation pole (4) of main part (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310011496.1A CN116125230A (en) | 2023-01-05 | 2023-01-05 | Porcelain insulator inner insulation detection method and detection equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310011496.1A CN116125230A (en) | 2023-01-05 | 2023-01-05 | Porcelain insulator inner insulation detection method and detection equipment thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116125230A true CN116125230A (en) | 2023-05-16 |
Family
ID=86293953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310011496.1A Pending CN116125230A (en) | 2023-01-05 | 2023-01-05 | Porcelain insulator inner insulation detection method and detection equipment thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116125230A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117029907A (en) * | 2023-07-11 | 2023-11-10 | 连云港石港高压电瓷有限公司 | High-voltage porcelain insulation detection device and application method thereof |
-
2023
- 2023-01-05 CN CN202310011496.1A patent/CN116125230A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117029907A (en) * | 2023-07-11 | 2023-11-10 | 连云港石港高压电瓷有限公司 | High-voltage porcelain insulation detection device and application method thereof |
| CN117029907B (en) * | 2023-07-11 | 2024-01-23 | 连云港石港高压电瓷有限公司 | High-voltage porcelain insulation detection device and application method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Wu et al. | The use of partial discharges as an online monitoring system for underground cable joints | |
| CN104198929A (en) | Detection device and detection method for outdoor high voltage isolator | |
| CN1776441A (en) | Device for detecting transformer winding state utilizing sweep frequency power source exciting | |
| CN116125230A (en) | Porcelain insulator inner insulation detection method and detection equipment thereof | |
| CN210894588U (en) | Device for GIS partial discharge detection | |
| CN201607510U (en) | Motor fault detecting equipment and system | |
| CN110703136A (en) | Live detection device and method for leakage current of insulator of power transmission line | |
| US8405949B2 (en) | Current sensor for measuring inhomogeneity of potential distribution of arrester | |
| CN105510785A (en) | Suspension insulator low and zero resistance data wireless measurer | |
| CN111238787A (en) | Mechanical state evaluation method and system of on-load tap-changer for converter transformer | |
| CN2864705Y (en) | Device for detecting transformer winding state utilizing sweep frequency power source exciting | |
| CN207123583U (en) | A kind of cable termination on-Line Monitor Device | |
| CN212540607U (en) | Detection device for detecting partial discharge of power transformation equipment | |
| CN209148807U (en) | A kind of power check test for short-circuit equipment | |
| CN114166175B (en) | Core deformation detection device and method for composite cross arm insulator | |
| CN208350265U (en) | Bolt assembly torsion monitoring device | |
| Fu et al. | Study on vibration characteristics of transformer insulation ageing | |
| KR100330258B1 (en) | Inspecting method for generator stator windings | |
| CN216900715U (en) | Electrified detection device of electrical defect of composite insulator string of overhead transmission line | |
| CN216132582U (en) | Cable surface temperature measuring device | |
| CN220136492U (en) | Motor vibration alarm device | |
| CN218496307U (en) | Stress detection device for bridge inhaul cable | |
| CN218955952U (en) | Photoelectric integrated temperature monitoring device of hydraulic generator | |
| CN220380726U (en) | Shafting measuring device of rotating equipment | |
| CN219552576U (en) | Cable partial discharge on-line monitoring system |
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 |