CN114076672A - Method for monitoring mechanical state of transformer winding based on uninterrupted power supply detection - Google Patents
Method for monitoring mechanical state of transformer winding based on uninterrupted power supply detection Download PDFInfo
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- CN114076672A CN114076672A CN202110991894.5A CN202110991894A CN114076672A CN 114076672 A CN114076672 A CN 114076672A CN 202110991894 A CN202110991894 A CN 202110991894A CN 114076672 A CN114076672 A CN 114076672A
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- 238000001514 detection method Methods 0.000 title claims abstract description 63
- 238000004804 winding Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000012544 monitoring process Methods 0.000 title claims abstract description 19
- 238000012423 maintenance Methods 0.000 claims abstract description 39
- 230000002159 abnormal effect Effects 0.000 claims abstract description 34
- 238000007689 inspection Methods 0.000 claims abstract description 23
- 230000000694 effects Effects 0.000 claims abstract description 12
- 239000000428 dust Substances 0.000 claims description 8
- 239000000314 lubricant Substances 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 4
- 230000005856 abnormality Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000012790 confirmation Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/72—Testing of electric windings
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Abstract
The embodiment of the specification discloses a method for monitoring the mechanical state of a transformer winding based on uninterrupted power supply detection. The method comprises the following steps: the inspection group members regularly detect the transformer winding, record the detection time and the detection state, take pictures of key positions and integrally obtain a detection table; determining whether the winding state is abnormal according to the detection table and the operation effect of the transformer, and if so, maintaining or re-winding and replacing the abnormal winding; if the transformer is restored to normal operation after the maintenance is finished, recording the abnormal condition and the maintenance mode of the transformer to form a maintenance record table, and signing and confirming by maintenance personnel and inspection group members. The invention can set different maintenance time aiming at the short-circuit fault rate of the transformer in the past year, improves the maintenance effect of the device, simultaneously realizes the judgment of whether the setting is abnormal or not based on the detection method without power failure, thereby not influencing the normal operation of the transformer and also being capable of timely processing the abnormal transformer.
Description
Technical Field
The application relates to the technical field of monitoring of mechanical states of transformer windings, in particular to a method for monitoring the mechanical states of the transformer windings based on uninterrupted power supply detection.
Background
With the continuous improvement of the capacity of the power grid, the short-circuit fault of the transformer causes the winding to face more severe deformation resistance examination, the winding deformation is one of the main reasons causing the transformer to be incapable of safe and stable operation, the power grid system suffers serious safety risk and economic loss, the power transformer needs to be powered off for the safety consideration of personnel when the mechanical state of the transformer winding is detected in the past, the transformer stops operating integrally due to the power-off detection, and a plurality of adverse consequences are generated when the transformer stops operating integrally, people research on the aspect of maintenance, design a method for monitoring the mechanical state of the transformer winding through the non-power-off detection, can obtain the latest state quantity of the transformer more by using the non-power-off state detection technology, dynamically evaluate the state of the transformer according to the real-time data, and realize the real-time grasp of the state of the transformer, and the power failure times can be reduced and unnecessary power failure accidents can be reduced by relatively maintaining the power failure.
However, the existing method for monitoring the mechanical state of the transformer winding has some defects: firstly, after a fault of a transformer winding is detected, the inspection group cannot rapidly and orderly process the fault; and secondly, the transformer with the fault can not be protected necessarily, and the fault transformer is prevented from being further damaged.
Disclosure of Invention
In order to solve the above technical problem, the embodiments of the present specification are implemented as follows:
the embodiment of the specification provides a method for monitoring the mechanical state of a transformer winding based on uninterrupted power supply detection, which comprises the following steps:
the inspection group members regularly detect the mechanical state of the transformer, record the detection time and the detection state, take pictures of key positions and integrally output a detection table;
determining whether the winding state is abnormal according to the detection table and the operation effect of the transformer to obtain a judgment result;
if the judgment result is yes, the abnormal winding is maintained or is re-wound and replaced;
if the transformer is restored to normal operation after the maintenance is finished, recording the abnormal condition and the maintenance mode of the transformer to form a maintenance record table, and signing and confirming by maintenance personnel and inspection group members.
Optionally, the method further includes:
and if the transformer cannot recover normal operation after the maintenance is finished, recording the abnormality of the transformer and reporting the condition to the maintenance part.
Optionally, the method further includes:
the patrol member establishes warning boards around the transformer and performs necessary protection around the transformer equipment.
Optionally, the method further includes:
and if the judgment result is negative, performing regular maintenance on the transformer, wherein the regular maintenance comprises dust cleaning, lubricant adding and dirt wiping.
Optionally, before the patrol member detects the mechanical state of the transformer at regular time, the method further includes:
and determining the inspection cycle of the transformer according to the detection fault rate of the transformer in the previous year.
Optionally, the method further includes:
the patrol group member learns the detection mode that the transformer is not powered off and the operation mode under the condition that the detection meets the abnormal condition.
Optionally, whether the winding state is abnormal or not is determined according to the detection table and the operation effect of the transformer, the winding state can be automatically identified according to the detection device, and the winding state can also be automatically judged by inspection personnel according to the abnormal standard of the transformer.
Optionally, the detection table includes a plurality of consecutive sets of detection data at different times.
Optionally, the inspection form requires signature confirmation by patrol member members.
The embodiment of the specification adopts at least one technical scheme which can achieve the following beneficial effects:
the invention can set different maintenance time aiming at the short-circuit fault rate of the transformer in the past year, improves the maintenance effect of the device, simultaneously realizes the judgment of whether the setting is abnormal or not based on the detection method without power failure, thereby not influencing the normal operation of the transformer equipment and also being capable of timely processing the abnormal transformer.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic flowchart of a method for monitoring a mechanical state of a transformer winding based on uninterruptible power detection according to an embodiment of the present disclosure;
fig. 2 is an overall flowchart of a first embodiment of a method for monitoring a mechanical state of a transformer winding based on uninterruptible power detection, provided in an embodiment of the present disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic flowchart of a method for monitoring a mechanical state of a transformer winding based on uninterruptible power detection according to an embodiment of the present disclosure. As shown in fig. 1, the method may include the steps of:
step 110: and the patrol group members detect the mechanical state of the transformer at regular time, record the detection time and the detection state, take pictures of key positions and integrally output a detection table.
Optionally, the inspection form requires signature confirmation by patrol member members. If the detection table is paper, the patrol group member is required to sign on the paper file, and if the detection table is an electronic form, the patrol group member is required to carry out electronic signature.
Step 120: determining whether the winding state is abnormal according to the detection table and the operation effect of the transformer to obtain a judgment result;
step 130: and if the judgment result is yes, maintaining or re-winding and replacing the abnormal winding.
And if the judgment result is negative, performing regular maintenance on the transformer, wherein the regular maintenance comprises dust cleaning, lubricant adding and dirt wiping.
Step 140: if the transformer is restored to normal operation after the maintenance is finished, recording the abnormal condition and the maintenance mode of the transformer to form a maintenance record table, and signing and confirming by maintenance personnel and inspection group members.
Optionally, the service record table needs to be signed and confirmed by a service person. If the overhaul record table is paper, the patrol member members and the overhaul personnel need to sign on the paper file, and if the overhaul record table is an electronic form, the patrol member members and the overhaul personnel need to carry out electronic signing.
And if the transformer cannot recover normal operation after the maintenance is finished, recording the abnormality of the transformer and reporting the condition to the maintenance part. Meanwhile, the patrol group members establish warning boards around the transformer and perform necessary protection around the transformer.
In one or more embodiments, before the inspecting the transformer at the patrol team member timing, the method may further include:
and determining the inspection cycle of the transformer according to the detection fault rate of the transformer in the previous year. Different inspection times are set for the fault rate of the transformer in the past year, and the method is more targeted.
In one or more embodiments, patrol team members need to learn the detection mode of a transformer without power outage and the operation mode in case of detection of an abnormal situation. The system training can be carried out by installation personnel, or the patrol group members can learn by themselves and carry out on-line simulation.
In one or more embodiments, whether the winding state is abnormal or not is determined according to the detection table and the operation effect of the transformer, and the determination can be automatically identified according to a detection device or automatically judged by an inspection worker according to an abnormal standard of the transformer.
In one or more embodiments, the detection table includes a plurality of consecutive sets of detection data at different times. In this embodiment, whether the winding state is abnormal can be determined according to the detection data of one time, and whether the mechanical performance of the transformer winding is gradually reduced and the reduction rate is within the standard range can be determined according to the detection data of multiple times.
Based on the method of fig. 1, the embodiments of the present specification also provide some specific implementations of the method, which are described below.
Example one
Fig. 2 is an overall flowchart of a first embodiment of a method for monitoring a mechanical state of a transformer winding based on uninterruptible power detection, provided in an embodiment of the present disclosure. As shown in fig. 2, the method comprises the steps of:
step 1: an installer determines the inspection cycle of the device according to the short-circuit fault rate of the transformer in the previous year;
step 2: the installer can teach the patrol group, so that the patrol worker can quickly learn an efficient and safe detection mode, and can guide the patrol worker to operate the mode under the abnormal detection condition;
and step 3: inspecting the mechanical state of the transformer winding at regular time by the members of the inspection group;
and 4, step 4: the inspection group records the detection time and the state obtained by the detection device, photographs and records the key position, finally, a detection table is integrally generated, and finally, the inspection group needs signature confirmation;
and 5: determining whether the transformer winding is abnormal or not according to the obtained data and the mechanical state of the winding;
step 6: determining that the transformer winding is abnormal according to the obtained data and the mechanical state of the winding, entering a step 7, determining that the transformer winding is abnormal according to the obtained data and the mechanical state of the winding, and entering a step 8;
and 7: performing necessary maintenance on the device, cleaning dust, adding a lubricant, wiping dirt and the like, and returning to the step 3;
and 8: overhauling or rewinding and replacing the transformer winding according to the study;
and step 9: after the overhaul is finished, the transformer returns to normal operation, the abnormity of the winding and the overhaul mode are recorded, the overhaul personnel signs and confirms, the operation returns to the step 7, the normal overhaul cannot be carried out, the transformer cannot return to normal operation, the condition is reported to a maintenance part after the abnormity of the transformer is recorded, and the operation enters the step 10;
step 10; and (4) powering off the transformer by the inspection group, erecting warning boards around the device, protecting the periphery of the device as necessary to prevent the device from being further damaged, and returning to the step 7 until the maintenance part finishes repairing the device.
In the above scheme, to the different inspection times of current year transformer short circuit fault rate formulation, it is more pertinent, to inspect the group and teach and can make to inspect the group and carry out safe and swift detection, take notes and judge the testing result, when needing to overhaul, can be quick overhaul the device, prevent that the device from causing bad consequence because of unable normal work.
In a preferred scheme, in step 2, the tour group is taught, the uninterrupted power supply detection mode of the safety major of the tour group is taught, the tour group is prevented from being damaged in detection, and meanwhile, the tour personnel are guided to meet the operation mode under the abnormal condition in the detection, so that the transformer can be protected in time after the abnormity of the detection device is detected by the tour group, and the transformer is prevented from being damaged again.
In the above scheme, in time cut off the power supply with the transformer, can avoid electric wire netting system's power transmission to meet bigger impact and destroy, and place the warning sign around unusual device, personnel and device around the protection warn the personnel that want to be close on every side, prevent that unusual device from leading to the fact the injury to personnel on every side, on the other hand prevents that personnel from leading to the fact the device further to damage to the improper operation of unusual device, and the warning sign is established and can effectively protect device and personnel on every side.
In a preferable scheme, the dust is cleaned in the step 7, the abnormal heat dissipation of the transformer caused by long-time accumulation of the dust is prevented, the normal operation of the transformer can be effectively ensured by adding necessary lubricant, and the inside of the device can be kept clean by removing the dirt.
In the scheme, the accumulation of dust can cause the radiating effect of the device to be poor, the specific device is added with the lubricant to enable the device to work more efficiently, dirt is wiped off to enable the inside of the device to be kept clean, the service life of the device is prolonged by carrying out necessary maintenance on the device, and meanwhile, the frequency of failure of the device can be reduced.
The invention has the following effects:
1. according to the invention, different patrol periods are made according to the surrounding environment of installation and different transformers, different devices are more adapted, the service life of the device is prolonged, meanwhile, professional training is carried out on patrol members, casualties caused by improper operation during detection can be effectively prevented, the operation mode when the patrol members meet the abnormity of the device is taught, the device can be protected and damaged quickly, the device is prevented from being further damaged, and for common problems, patrol personnel can repair the device quickly according to the learned safety, and bad consequences caused by the damage of the device are prevented.
2. According to the invention, under the condition that normal maintenance cannot be carried out, the warning board can be erected around the device, the erected warning board can warn surrounding persons to approach, so that the abnormal device is prevented from injuring surrounding persons, on the other hand, the device is prevented from being further damaged due to improper operation of the abnormal device by the persons, and the erected warning board can effectively protect the device and the surrounding persons.
3. According to the invention, the device is cleaned after the device is detected and repaired, the heat dissipation effect of the device is poor due to the accumulation of dust, the device can work more efficiently due to the addition of the lubricant to the specific device, the interior of the device can be kept clean due to dirt removal, the service life of the device is prolonged due to the necessary maintenance of the device, and the failure frequency of the device can be reduced.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (8)
1. A transformer winding mechanical state monitoring method based on uninterrupted power supply detection is characterized by comprising the following steps:
the inspection group members regularly detect the mechanical state of the transformer, record the detection time and the detection state, take pictures of key positions and integrally output a detection table;
determining whether the winding state is abnormal according to the detection table and the operation effect of the transformer to obtain a judgment result;
if the judgment result is yes, the abnormal winding is maintained or is re-wound and replaced;
if the transformer is restored to normal operation after the maintenance is finished, recording the abnormal condition and the maintenance mode of the transformer to form a maintenance record table, and signing and confirming by maintenance personnel and inspection group members.
2. The method of monitoring the mechanical condition of a transformer winding of claim 1, further comprising:
and if the transformer cannot recover normal operation after the maintenance is finished, recording the abnormality of the transformer and reporting the condition to the maintenance part.
3. The method of monitoring the mechanical condition of a transformer winding of claim 1, further comprising:
the patrol member establishes warning boards around the transformer and performs necessary protection around the transformer.
4. The method of monitoring the mechanical condition of a transformer winding of claim 1, further comprising:
and if the judgment result is negative, performing regular maintenance on the transformer, wherein the regular maintenance comprises dust cleaning, lubricant adding and dirt wiping.
5. The method for monitoring the mechanical state of the winding of the transformer according to claim 1, wherein before the patrol member detects the transformer at regular time, the method further comprises:
and determining the inspection cycle of the transformer according to the short-circuit fault rate of the transformer in the previous year.
6. The method of monitoring the mechanical condition of a transformer winding of claim 1, further comprising:
the patrol group member learns the detection mode that the transformer is not powered off and the operation mode under the condition that the detection meets the abnormal condition.
7. The method for monitoring the mechanical state of the winding of the transformer according to claim 1, wherein whether the winding state is abnormal or not is determined according to the detection table and the operation effect of the transformer, and the inspection personnel can automatically judge according to the abnormal standard of the transformer.
8. The method of claim 1, wherein the test meter includes a plurality of successive sets of test data at different times.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110991894.5A CN114076672A (en) | 2021-08-27 | 2021-08-27 | Method for monitoring mechanical state of transformer winding based on uninterrupted power supply detection |
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| CN202110991894.5A CN114076672A (en) | 2021-08-27 | 2021-08-27 | Method for monitoring mechanical state of transformer winding based on uninterrupted power supply detection |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107977714A (en) * | 2017-11-08 | 2018-05-01 | 天津市普迅电力信息技术有限公司 | A kind of intelligent control platform of power transformation fortune inspection |
| CN109190772A (en) * | 2018-08-23 | 2019-01-11 | 广州珠江黄埔大桥建设有限公司 | A kind of highway electrical equipment operation maintenance method based on mobile Internet |
| CN110596486A (en) * | 2019-08-26 | 2019-12-20 | 国创新能源汽车能源与信息创新中心(江苏)有限公司 | Intelligent early warning operation and maintenance method and system for charging pile |
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- 2021-08-27 CN CN202110991894.5A patent/CN114076672A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107977714A (en) * | 2017-11-08 | 2018-05-01 | 天津市普迅电力信息技术有限公司 | A kind of intelligent control platform of power transformation fortune inspection |
| CN109190772A (en) * | 2018-08-23 | 2019-01-11 | 广州珠江黄埔大桥建设有限公司 | A kind of highway electrical equipment operation maintenance method based on mobile Internet |
| CN110596486A (en) * | 2019-08-26 | 2019-12-20 | 国创新能源汽车能源与信息创新中心(江苏)有限公司 | Intelligent early warning operation and maintenance method and system for charging pile |
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